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A Kilowatt of Power

An anonymous reader writes "There is finally a review available of a kilowatt power supply. The PC Power and Cooling 1KW produces 1000W of power output with 1100W peak. The review points out how great this product did in the testing but was not afraid to admit how much of an overkill it is for the enthusiast market. From the article, 'In the current computing world, where more always equals "better than" the 1KW is king.'"

336 comments

  1. Pfffft by Bananatree3 · · Score: 3, Funny
    'In the current computing world, where more always equals "better than" the 1KW is king.'"

    1KW? Pfffft, and you think thats Ub3r 133t? Check out my super-duper(tm) Cisco Systems 4200 WACV 4.2KW powerhouse. This baby whoups any powersupply anyday, anywheres, anytime.

    1. Re:Pfffft by Heavy+Machinery · · Score: 1

      How's your powerbill? I last time I checked, my local power co charges me 15.3 cents (NZ$) per KiloWatt/Hour! I'm guessing your KW/H rate is a bit less, right?

    2. Re:Pfffft by moro_666 · · Score: 2, Interesting

      1KW, 4KW .... you can heat a room up with 1KW and heat a whole house with 4KW.

      concidering the fact that we have -15 degrees by celsius outside right here, i prefer the heater.

      --

      I'd tell you the chances of this story being a dupe, but you wouldn't like it.
    3. Re:Pfffft by LoRdTAW · · Score: 1

      Here in New yourk City its about 14 cents USD. Thats 20.5 cents NZ!

    4. Re:Pfffft by dancallaghan · · Score: 2, Informative

      But surely all (or nearly all?) 4200 watts are eventually converted to waste heat. So you could have a heater *and* a sh#tload of PoE gear.

    5. Re:Pfffft by LoRdTAW · · Score: 0, Flamebait

      As usual some self righteous green peace wannabe tries to relate something they view as inefficent to gas guzzling SUV's. BZZZT, try again. The power supply only draws 1kw if a 1kw load is hooked to it.

    6. Re:Pfffft by Anonymous Coward · · Score: 3, Interesting

      On the other side, there's my fanless mini-itx system, just 533 MHz, but enough to run X and FVWM, mutt, and all the other tools I need in my daily life (work AND private use). And that at a mere 15 watts, no moving parts except the HD. In germany, 1 kWh costs about $0.23, I save about $660 every year (8 hours/day) compared to 1KW...

    7. Re:Pfffft by moro_666 · · Score: 1

      a pretty percentage of it will be turned into moving air and to light emission too, also to spin hdd's. but i agree, most of it will turn out as heat in the end (energy can't just dissapear into the machine, if it would, einstein would start to turn in his grave :)

      --

      I'd tell you the chances of this story being a dupe, but you wouldn't like it.
    8. Re:Pfffft by ultranova · · Score: 4, Insightful

      a pretty percentage of it will be turned into moving air and to light emission too, also to spin hdd's. but i agree, most of it will turn out as heat in the end

      All of it will turn to heat in the end. Moving air will stop due to friction, as its kinetic energy turns to heat, and light is absorbed to walls and your eyes, warming them up.

      All energy turns to heat in the end, some units of it just take a longer road than others.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    9. Re:Pfffft by NerveGas · · Score: 4, Insightful

      If your power bill is high, maybe it's not the computer. Even if you're getting charged 25 cents per KW/H, a 20-watt machine running 24 hours/day for a month only uses (20*24*31/1000)=14.4 kilowatt-hours, for a grand total of... less than $4. If $4 is breaking the bank, then you're *really* in a predicament.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    10. Re:Pfffft by Anonymous Coward · · Score: 0

      Not trying to be an ass but it hurts the eyes when so many posts including opening article have kW wrong. It is kW not KW. It has a small k because kilo isn't taken from somebody's name.

      http://whatis.techtarget.com/definition/0,,sid9_gc i797759,00.html

    11. Re:Pfffft by Down8 · · Score: 1

      ...the fad that started decades ago?

      Suburbans lead back to the '30s, I believe. With the current full-size SUV flavor being launched in the '60s.

      -bZj

      --
      .sig
    12. Re:Pfffft by Anonymous Coward · · Score: 0

      Uh, 20 watts? Maybe if the computer is idle 24/7, and you're using a laptop.

    13. Re:Pfffft by JiffyJeff · · Score: 1

      I am being charged 25 cents per KW/H, and my machines do stay on 24/7/365 -- power matters to me! From my measurements, a Mac Mini draws about 22 watts/hr when in use, my laptop uses about 21 wattts as it's a web server updated every 5 minutes from 8 different weather instruments. I hardly ever turn on my "gaming" box because it draws about 180 watts and frankly, I never used it for gaming anyway -- it was just my windoze box. Electricity costs a lot here, I'd rather feed a wood stove than keep a windows box on all day.

    14. Re:Pfffft by Technician · · Score: 1

      1KW, 4KW .... you can heat a room up with 1KW and heat a whole house with 4KW

      You must have a small house or a super tight house. My heat has 3 5KW elements. I had a breaker trip dropping 2 elements. 5KW was not enough to keep a 2 story 4 bedroom home warm.

      --
      The truth shall set you free!
    15. Re:Pfffft by b00stA · · Score: 1

      Not quite.
      There's a certain inefficiency in every power supply, so you won't be getting all the power you're putting into it.

      --
      Stop making that big face!
    16. Re:Pfffft by Technician · · Score: 5, Informative

      Not trying to be an ass but it hurts the eyes when so many posts including opening article have kW wrong. It is kW not KW. It has a small k because kilo isn't taken from somebody's name.


      I found a list of metric prefixes.

      I have no idea why Kilo is not uppercase as are most multiplyers of greater than unity. In common pratice is is common for greater then unity multiplyers to be uppercase to avoid confusion with less then unity multiplyers. That is why most street signs read KM to the next exit and transistors are measured in nm and leakage current is measured in uA.

      Prefix Symbol Multiplier Exp
      yotta- Y 1 000 000 000 000 000 000 000 000 10+24
      zetta- Z 1 000 000 000 000 000 000 000 10+21
      exa- E 1 000 000 000 000 000 000 10+18
      peta- P 1 000 000 000 000 000 10+15
      tera- T 1 000 000 000 000 10+12
      giga- G 1 000 000 000 10+9
      mega- M 1 000 000 10+6
      kilo- k 1 000 10+3
      hecto- h 100 10+2
      deca- da 10 10+1
      deci- d 0.1 10-1
      centi- c 0.01 10-2
      milli- m 0.001 10-3
      micro- 0.000 001 10-6
      nano- n 0.000 000 001 10-9
      pico- p 0.000 000 000 001 10-12
      femto- f 0.000 000 000 000 001 10-15
      atto- a 0.000 000 000 000 000 001 10-18
      zepto- z 0.000 000 000 000 000 000 001 10-21
      yocto- y 0.000 000 000 000 000 000 000 001 10-24

      --
      The truth shall set you free!
    17. Re:Pfffft by dbitter1 · · Score: 1
      All energy turns to heat in the end, some units of it just take a longer road than others.


      Although *MOST* turns to heat, you also forgot light and deformation as energy sinks as well.

      --
      For us carnivores, "Sucking the marrow out of life" isn't a transcendentalist philosophy but a practical instruction.
    18. Re:Pfffft by Anonymous Coward · · Score: 0

      6000W power supply (requires two inputs to get peak output) for Cisco 6500-series switch: http://www.cisco.com/en/US/products/hw/switches/ps 708/products_data_sheet0900aecd801c5c84.html

      Gotta love all of the power required for hundreds of VoIP phones and other PoE devices :)

    19. Re:Pfffft by Anonymous Coward · · Score: 3, Informative

      I never noticed that most units larger than unity are capitalized. Nevertheless, I imagine the lowercase k is because another SI unit uses uppercase K. (Kelvin)

    20. Re:Pfffft by Anonymous Coward · · Score: 0

      *All* of it will end up as heat. All. Without *any* exception. This includes "light and deformation."

    21. Re:Pfffft by jcaren · · Score: 1

      Well there was a 5/12/24 supply left over at my old employer.
      They offered to give it away but no takers - so they left it in the building.
      Size? - well it had its own 11Kv transfomer supplying this underfloor
      beastie. The 5V rail was a solid 2"x4" bar.

    22. Re:Pfffft by NormalVisual · · Score: 1

      Yup, 1936. The Suburban has been in production longer than any other vehicle in automotive history.

      --
      Please stand clear of the doors, por favor mantenganse alejado de las puertas
    23. Re:Pfffft by GuidoW · · Score: 1

      It's Kilowatt times hours (kWh), not Kilowatt per hour (kW/h). There is such a thing as kWh per hour (== kW), but no such thing as kW per hour.</nitpickmode>

      (KW is power, kWh is energy. Power doesn't "accumulate", energy does. Or was it that power does accumulate, but then it's referred to as energy? A second ago I thought I had a good grip on those concepts...)

      --
      If it's so secret, then how come I've never heard of it?
    24. Re:Pfffft by cloak42 · · Score: 1

      I've never once seen kilometers described with KM as opposed to km. The only reason the road signs are in caps is because ALL road signs are in caps. You don't describe miles as MILES, either, but it says that on the road signs (well, OUR road signs; obviously you don't use miles).

    25. Re:Pfffft by necro81 · · Score: 2, Funny

      I for one would like to thank all of the PSU enthusiasts for increasing the entropy of the universe, one KW-hr at a time...

    26. Re:Pfffft by markass530 · · Score: 1

      20 Watt Machine?? Wtf are you running a Pentium 75 Packard Bell?

    27. Re:Pfffft by Kitsune78 · · Score: 1

      Uhh.. wait.. 1000 Watts @ 12V = 83.333... Amps 4200 Watts @ 42V = 100.00 Amps

    28. Re:Pfffft by Ryan+Amos · · Score: 1

      As long as we're getting penis envy from power supplies, my IBM BladeCenter has 4 redundant hot-swappable 1600 watt power supplies. We had to run a 220 circuit just to power the damn thing because it won't take 110.

    29. Re:Pfffft by Anonymous Coward · · Score: 0

      And a million or more doing the same? Just how much polution do retards like you want to belch into our lungs?

    30. Re:Pfffft by dildatron · · Score: 1

      Although you can't heat a typical house with 4KW, it would definately make an impact. For those of us in many areas, it also means we get to cool 4KW of heat in the summer, using even more juice!

      --


      If you had nuts on your chin, would they be chin nuts?
    31. Re:Pfffft by DigitalRaptor · · Score: 2, Informative

      Yeah, except that my Dell laptop pulls 80 watts when idle, and over 110 when doing something like unzipping a file. I tested it with my Kill-A-Watt P3 just a few weeks ago.

      $16 a month to run your laptop is pretty steep if you ask me. My next one will definitely be a Centrino or other low power chipset. (I had already decided that, for a variety of reasons).

      I know that no one is getting charged 25 center per KW/H, yet, but those same numbers would make a 75 watt lightbulb that is always on cost $15 a month to run.

      Time for the whole country to switch to flourescent whereever possible. I'm not just talking about compact flourescents either. I just added a full spectrum flourescent 4' dual bulb fixture to my storage room and love it. It uses less juice than a single 75 watt bulb, puts out way, way more light, and it's perfectly white and bright light. And the bulbs last for 9 years.

      I'm a convert...

      --
      Lose Weight and Feel Great with Isagenix
    32. Re:Pfffft by Anonymous Coward · · Score: 0

      I'm sure one of my green LED photons will make into deep space never to be converted to this so called "heat". Your absolutionist view of thermodynamics is revolting. Keep it up, you poodle pumping, pooch punching, hound hitter! And don't tell me about the life cycle of the universe.

    33. Re:Pfffft by fnj · · Score: 1

      a Mac Mini draws about 22 watts/hr when in use

      From the small niggles dept...
      A watt is an instantaneous power measurement. The concept of power per unit time is not meaningful. Just say, a Mac Mini draws about 22 watts. A 100 watt light bulb draws 100 watts.

      For the rest, I couldn't agree more. I have a Pentium M SFF that takes about 20 watts, and a Pentium M ATX that takes about 50 watts. They're more than capable of almost anything I want to do. I only run the heavy iron occasionally.

      Not only that, but all the lights I use a lot are compact fluorescents. That saves about 80% over incandescants. Now, if there was only a refrigerator that took advantage of the fact that there is all knds of free air outside that is below 40 degrees most of the time for 5 months of the year, I'd be a lot better off. And something better than LCD monitors and TVs that shine an intense backlight all the time during viewing, only to cut off probably 98% or more of the light on average to produce the desired image.

    34. Re:Pfffft by fnj · · Score: 1

      20 Watt Machine?? Wtf are you running a Pentium 75 Packard Bell?

      Or maybe, just maybe, he has the common sense to choose a notebook or a Mac Mini or a Pentium M SFF. Nothing makes me crazier than to see people surfing the web with a P4 or AMD furnace ruinning full bore, and a 3D video card sucking down power like it's going out of style when you could save 90% of that waste without the slightest impact on performance in that usage mode.

    35. Re:Pfffft by cyberfunk2 · · Score: 1

      I believe you mean "thermal energy" and not heat.. as heat is a transient quantity.

      Also, not everything ends up as thermal energy. Take for example, the intrinsic binding energy present in the lead nucleus, one of the most stable elements known to man. Assuming you dont bash it with rediculous amounts of radiation, it's likely to stay as lead, and the intrinsic binding energy stored within the nucleus.

      Another example: A superconducting magnet, such as that found in an NMR or MRI machine. Round and round the electrons go, but there's no heat dissipation so long as it remains superconducting.

      I'm sure other examples exist as well..

    36. Re:Pfffft by Frank+T.+Lofaro+Jr. · · Score: 1

      You probably have a really high power bill.

      --
      Just because it CAN be done, doesn't mean it should!
    37. Re:Pfffft by skids · · Score: 1


      Don't let's get started on CISCO's power blunders. On some of their gear they've started to try to save a few hundred dollars off a system that costs tens of thousands through the use of three smaller power supplies, rather than two larger supplies. The box dies if more than one of the circuits fails. Try making that immune to circuit outages with conventional A+B NOC power systems. Gah.

    38. Re:Pfffft by Laurence0 · · Score: 1

      kW/h could be a rate of change of power though... Although even with this level of nitpick, I'm not sure I can come up with a real use for it.

    39. Re:Pfffft by kin_korn_karn · · Score: 2, Funny

      They left off the top three:

      metric shitload - MS 1 000 000 000 000 000 000 000 000 10+33
      shitload - S 1 000 000 000 000 000 000 000 000 10+30
      lotta- L 1 000 000 000 000 000 000 000 000 10+27

    40. Re:Pfffft by InvalidError · · Score: 2, Interesting

      Here, in Quebec, power is around $0.05/kWh CAN (about $0.04 US)... and it goes around $0.035 (roughly 0.03$ US) outside peak hours for people who are on bi-energy or similar plans.

      Since I only have electric heaters in my apartment, a big PSU (and a PC to match) would give the heaters a break when it is -30C outside with no measurable net effect on the power bill during most of winter. I wouldn't turn that on unless absolutely necessary during summer though.

      If PSUs keep getting larger at the current pace, some people will have to consider getting tri-phase power in the not so distant future... or at least rewire their 110-120V houses for 220-240V.

    41. Re:Pfffft by iamhassi · · Score: 1
      "Now, if there was only a refrigerator that took advantage of the fact that there is all knds of free air outside that is below 40 degrees most of the time for 5 months of the year, I'd be a lot better off. "

      I moved into a new house a month ago and havent bought a fridge yet, i just keep the food on a shelf outside the door leading to the garage. It's cold enough that nothing goes bad and i could probably keep doing this for at least another month before worrying about it getting too warm.

      --
      my karma will be here long after I'm gone
    42. Re:Pfffft by iamhassi · · Score: 1
      "This baby whoups any powersupply anyday, anywheres, anytime.

      so does that $2,700+ price tag

      think i'll stick with my sub-$50 500w power supplies thank u very much

      --
      my karma will be here long after I'm gone
    43. Re:Pfffft by Captain+Pedantic · · Score: 1

      I can tell what your parents did for a living by the content of your posts.

      Go on then, guess.

      --

      None are more hopelessly enslaved than those who falsely believe they are free. Johann Wolfgang von Goethe.
    44. Re:Pfffft by Bastard+of+Subhumani · · Score: 0

      In photography the power of flashes is sometimes given in watt-seconds and of course people feel the need to "correct" it to watt/seconds. The only use I see for power / unit time would be measuring how quick a power station can respond.

      --
      Only three things are certain; death, taxes, and apocryphal quotations - Ben Franklin.
    45. Re:Pfffft by ultranova · · Score: 2, Interesting

      Also, not everything ends up as thermal energy. Take for example, the intrinsic binding energy present in the lead nucleus, one of the most stable elements known to man. Assuming you dont bash it with rediculous amounts of radiation, it's likely to stay as lead, and the intrinsic binding energy stored within the nucleus.

      Actually, no. Lead nucleus is made of protons and neutrons, which in turn are made of quarks. Now, thanks to quantum mechanics, the exact position of those quarks can never be known for sure; you can find them in any given position if you wait long enough. Which means that, given enough time, all of the quarks will happen to be found near enough to each other that they are turned into a miniature black hole, which will boil to gamma rays almost instantly thanks to Hawkings radiation. Losing enough protons and neutrons in this way will eventually cause lead to become unstable, and even if it didn't, it would ultimately lose all of the particles that are a part of it and consequently ceasing to exist.

      Another example: A superconducting magnet, such as that found in an NMR or MRI machine. Round and round the electrons go, but there's no heat dissipation so long as it remains superconducting.

      Unless those electrons are travelling in a straight path all the time (which is impossible, unless the magnet is infinitely long), they will change direction sometimes. Changing direction implies acceleration. A charge that experiences acceleration loses its kinetic energy in the form of electromagnetic radiation. Given enough time, the speed of those electrons will approach zero.

      I'm sure other examples exist as well..

      There is none. Doom and gloom, baby, doom and gloom ;)...

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    46. Re:Pfffft by HiThere · · Score: 1

      Sorry, some of it is used to store energy in magnetic fields. Given enough time that will end up as heat, but by then your house won't be standing anymore either.

      In a practical sense, one should consider the house a resistor in the flow of heat energy from the release points inside to the outside. This makes it clear that the most efficient way to heat (or cool) the house is to improve it's resistance to heat flow (insulate). Somehow people who design houses, build houses, and perhaps even those who buy them consistently miss this point. (OTOH, you can't buy what isn't available...so unless you are building or rebuilding your own, you're stuck with what's available to purchase.)

      It's much more efficient to insulate your house than to add a larger heat source inside your computer.

      (And yes...that was the point of the joke. But it's been demonstrated repeatedly that many won't get the point, so I explained it here, several paragraphs down.)

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    47. Re:Pfffft by HiThere · · Score: 1

      I think that the attempts to demonstrate that proton decay was a valid theory have been uniformly failures. This doesn't actually mean that the theory is wrong...but it does mean that *IF* it is correct (not proven) the time scale is immensely long. So long, in fact, that it's probably irrelevant, as some other black hole will have eaten them first.

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    48. Re:Pfffft by krakelohm · · Score: 1

      ... I can hear the banjo's on the porch playin now...

      --
      You are all a bunch of idots.
    49. Re:Pfffft by markass530 · · Score: 1

      I hate P4 Space heaters as much as the next guy, but throwing AMD into the same sentence is not right. With their power saving technology and inherent performance per watt, the amd64 CPU is not in anyway shape or form, a furnace. Anyways, 20 watts, even a SFF or mac mini uses more then 20 watts,

    50. Re:Pfffft by Anonymous Coward · · Score: 0

      > I know that no one is getting charged 25 center per KW/H

      Depends whether it's winter or summer. If it's summer, you're also paying to cool your place after that PC adds the heat. So cost of the electricity to run the machine might be ~12 cents, but cost to cool the space in the summer might be another 10 cents. YMMV.

    51. Re:Pfffft by fnj · · Score: 1

      Anyways, 20 watts, even a SFF or mac mini uses more then 20 watts,

      Actually, no. I have measured them with a wattmeter in the AC supply line. The figure is accurate. Well, unless you're using a P4 or amd64 blowtorch. I specified Pentium M SFF, and my Pentium M SFF is indeed 20 watts.

    52. Re:Pfffft by brain+defrag · · Score: 1

      Now, what if you're running a server room? A single 150 watt server running 24 hours a day for a month uses (150*24*31/1000)=111.6 Kw/hr. Imagine 3 or more of them... it can easily break the bank of a business that's struggling to stay afloat.

    53. Re:Pfffft by NerveGas · · Score: 1

      Nope, like I said, it's an Eden CPU. Even running full-tilt at a gigahertz, the *max* power draw of the chip is 7 watts. The entire motherboard, including CPU, is rated at about 20 watts, and figure 10 for the hard drive - but the CPU is barely doing anything other than just ticking over with BitTorrents, so 20 or 25 watts is about right.

      By the way, my home router is a dual Pentium 133 running a customized version of Coyote. Because the CPUs never do anything (even maxing out my 6 megabit line with multiple bittorrents, the load never goes above 0.03), I've plugged it into a watt-meter, and it draws just 45 watts - even after power supply losses and inefficiencies. My P3/650 file server with 3 drives draws jut 65 watts under use. Now my gaming machine is a little different, with an overclocked athlonXP 3200 and a GF 6800GT, it'll draw 300 watts from the wall.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    54. Re:Pfffft by NerveGas · · Score: 1

      Actually, the servers that I manage for a day job add up to a lot more than that. We're about to get another rack simply because of electrical needs - we're at over 75% draw on two 20-amp lines during heavy days right now, and to keep up with growth, we'll have to add at least 5 more dual-CPU machines and another 4-way machine as well. Then figure in the cost of cooling the data center!

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    55. Re:Pfffft by arminw · · Score: 1

      ....loses its kinetic energy in the form of electromagnetic radiation....

      The electrons in a conductor are not moving in the sense they do in a beam, such as in a CRT. The electrons in the wire may be compared to balls filling a pipe. You push one in at one end and another pops out at the other. In an ordinary wire this transfer of pushing from ball to ball involves losses which give rise to electrical resistance. These losses cause the conductor heat up. In a superconductor, by definition there are ZERO losses and so the current, not the electrons themselves can circulate until the material warms up and becomes resistive again. If these NMR magnest were not superconducting, one of these would take several times the electric power of the entire hospital with a commensurate cooling system to get rid of the heat.

      --
      All theory is gray
    56. Re:Pfffft by kimvette · · Score: 1

      Are we talking about welders or power supplies? :D

      --
      The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
    57. Re:Pfffft by kimvette · · Score: 1

      How many sub-$50 500W power supplies can actually even peak at 500W without blowing, let alone handle a continuous 500W draw?

      --
      The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
    58. Re:Pfffft by Makarakalax · · Score: 1

      It's not a niggle, I was finding it pretty hard to figure out what he meant.

    59. Re:Pfffft by brain+defrag · · Score: 1

      Maybe you should consider installing a heat pump so you can use the server room to heat the rest of the building during the winter!

    60. Re:Pfffft by toddestan · · Score: 1

      I think I'll stick with my sub-$100 500W power supplies, or the sub-$50 350W power supplies myself. Sub-$50 500W supplies are asking for trouble.

    61. Re:Pfffft by mrchaotica · · Score: 1
      Now, if there was only a refrigerator that took advantage of the fact that there is all knds of free air outside that is below 40 degrees most of the time for 5 months of the year, I'd be a lot better off.
      Keep your refrigerator (and especially freezer) as full as possible, because the food will gain heat less quickly than the air when you open the door.
      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

    62. Re:Pfffft by Ohreally_factor · · Score: 1

      The wattage specification has to do with the current that is going IN to the PSU.

      So, that's 1000 watts @ 110 -120 V = 8.3 Amps, meaning you can have two on one 20 Amp circuit.

      The Cisco PSU only gives the full 4200 Watts when fed by two 220 volt circuits. That's 4200 w @ 440 Volts = 9.54 Amps

      Check the specs. Do the math. W=VA (A bastardization of Ohm's law, I'm told.)

      --
      It's not offtopic, dumbass. It's orthogonal.
    63. Re:Pfffft by ultranova · · Score: 1

      The electrons in a conductor are not moving in the sense they do in a beam, such as in a CRT. The electrons in the wire may be compared to balls filling a pipe. You push one in at one end and another pops out at the other.

      And why does that happen ? Because, as you push one ball in, it pushes all the other balls forward.

      Electrons in a current-carrying wire are moving in the normal sense of the word. They pretty much have to; after all, there's a potential difference between the ends of the wire (that's what causes the current to flow), and electrons, being electrically charged, are repulsed by one end and attracted by another. This movement of electrons is what causes a magnetic field to form around the wire - moving electric charges generate a magnetic field around them.

      What can be confusing is the concept of "drift velocity". Electrons are bouncing all around the place due to random heat movement; however, there is a general trend of movement towards a certain direction, that trend being measured by the drift velocity.

      In a superconductor, by definition there are ZERO losses and so the current, not the electrons themselves can circulate until the material warms up and becomes resistive again.

      Current is the amount of electrons (or other charged particles) moving. Saying that current circulates but electrons don't is a contradiction in terms.

      Also please notice that I was not talking about electric resistance, I was talking about charged particles in accelerated motion releasing electromagnetic radiation. The latter phenomenon doesn't disappear just because the charge happens to be inside a superconductor.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    64. Re:Pfffft by arminw · · Score: 1

      ......I was talking about charged particles in accelerated motion releasing electromagnetic radiation.....

      Apparently you did not notice the word beam. In a conductor, the electrons do move, like the balls in the pipe. However, the number of balls (electrons) is astronomical when compared to the number of electrons flowing at any given number of amperes. If you could paint one of these electrons green or whatever, at the beginning of the conductor, you'd be waiting a long time compared to the near lightspeed rise of the current flow, for that one to appear at the other end. The speed ratio can be calculated for any given conductor, but it is greater than the ratio between a snail and a supersonic fighter jet.

      A fun experiment I used to demonstrate to school children when they came to visit the lab at Stanford, where I worked, was to place a lead dish into a glass dewar container full of liquid helium. Then a small permanent magent was gently lowered into the lead dish. It would never touch it however, but float, suspended above it. The magnet induced an electrical currrent in the superconducting lead that created a magnetic field that exactly opposed that of the magnet at all times and thus repelling it. There are no energy losses, by radiation or any other mechanism from the currents circulating within the lead, generating the opposing magnetic field that keeps the magnet suspended as it dances around in the boiling helium. Only after all the helium evaporated did the magnet descend onto the dish.

      --
      All theory is gray
    65. Re:Pfffft by Anonymous Coward · · Score: 0

      So - yotta, yotta, yotta = 3x10^24?

  2. Overkill? by Black+Parrot · · Score: 4, Funny

    > was not afraid to admit how much of an overkill it is for the enthusiast market.

    Nothing is overkill for a true enthusiast.

    (You should see my friend's stereo speakers.)

    --
    Sheesh, evil *and* a jerk. -- Jade
    1. Re:Overkill? by tktk · · Score: 2, Funny
      Except for something that actually kills the enthusiast.

      Course, another one will pick up where the 1st guy died.

    2. Re:Overkill? by Frostalicious · · Score: 2, Funny

      (You should see my friend's stereo speakers.)

      Are they like this?

    3. Re:Overkill? by DrEldarion · · Score: 5, Funny

      Bah, death is just proof that you're that hardcore.

    4. Re:Overkill? by lolocaust · · Score: 3, Funny

      and he must be wondering why he has to reinstall windows and quake everytime he wants to play.

      --
      Why does my post history abruptly stop? I want to laugh at the stupid things I posted as a kid.
    5. Re:Overkill? by muellerr1 · · Score: 1

      (You should see my friend's stereo speakers.)

      Do they blow women's clothes off?

    6. Re:Overkill? by Surt · · Score: 1

      No, if it just kills the enthusiast, that's kill. Over kill might kill him twice, and grind up the body for shark food.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    7. Re:Overkill? by SpecBear · · Score: 1

      A friend of mine took a different stance.

      Back when we were both quite active on battle.net, I sent him a link to a story about some guy who had died while playing games online. He'd been playing for some absurd length of time in a 24/7 internet cafe subsisting on junk food, coffee and cigarettes, and just collapsed. My friend sent a two word reply:

      "Fuckin noob."

    8. Re:Overkill? by Bloke+down+the+pub · · Score: 1

      Does he have an amp that goes up to 11?

      --
      It's true I tell you, feller at work's next door neighbour read it in the paper.
  3. That's nothing... by User+956 · · Score: 4, Funny

    I've got a 1.21 Jigawatt power supply. Powered by some plutonium I stole from some terrorists in a VW bus down at the twin pines mall.

    --
    The theory of relativity doesn't work right in Arkansas.
    1. Re:That's nothing... by nurhussein · · Score: 3, Funny

      That was pretty dangerous. All you needed was to purchase 1,210 of these PC Power and Cooling 1KW units, and stack 'em on your DeLorean.

      Either that or a bolt of lightning.

    2. Re:That's nothing... by ValiantSoul · · Score: 1

      And then after your DeLorean because bigger than the size of a big room discluding room for cooling, you realize your electric bill just went up by $10,000. I wonder if with the electric caps and everything a city block would be able to power all those supplies. Maybe it takes a city - not sure.

      Sorry for rambling - I'm half asleep.

    3. Re:That's nothing... by User+956 · · Score: 2, Funny

      That was pretty dangerous. All you needed was to purchase 1,210 of these PC Power and Cooling 1KW units, and stack 'em on your DeLorean.

      Yeah, well, it's not like they're going to come chasing after me with their AK-47s, immediately after I perform my proof-of-concept experiment where I send my dog 12 miunutes into the future, forcing a dramatic, hair-raising flight by my friend who's videotaping the whole thing for posterity, ending in an accidental trip back in time which results in a near-catastrophic ripple in the space-time continuum.

      I mean, really. come on. (rolleyes)

      --
      The theory of relativity doesn't work right in Arkansas.
    4. Re:That's nothing... by LoRdTAW · · Score: 1

      Nah just call your power company and have em give you a 30 amp 13.8kv 3 phase feeder.

    5. Re:That's nothing... by Anonymous Coward · · Score: 0
      All you needed was to purchase 1,210 of these PC Power and Cooling 1KW units
      How do you figure? By my math, that's 1.21 Megawatts. You'de need 1,210,000 of them, which would be a tad cramped in a DeLorean.
    6. Re:That's nothing... by The+Clockwork+Troll · · Score: 1

      I don't know any Twin Pines mall, but I know a Lone Pine mall.

      --

      There are no karma whores, only moderation johns
    7. Re:That's nothing... by Anonymous Coward · · Score: 1, Funny

      What the hell's a Jigawatt?

    8. Re:That's nothing... by greysky · · Score: 1

      I was able to get the same result from a power line I strung up to the town hall's clock tower.

    9. Re:That's nothing... by elrous0 · · Score: 1
      Damn environmentalists. When are you going to stop wasting time trying to harness lightening power and just buy a Mr. Fusion? And it's perfect safe for home use, too. They've made a lot of improvements since that Pennslyvania blast (who really liked that state, anyway?).

      -Eric

      --
      SJW: Someone who has run out of real oppression, and has to fake it.
    10. Re:That's nothing... by blugu64 · · Score: 1

      Really they're not going "to come chasing after me with their AK-47s, immediately after I perform my proof-of-concept experiment where I send my dog 12 miunutes into the future, forcing a dramatic, hair-raising flight by my friend who's videotaping the whole thing for posterity, ending in an accidental trip back in time which results in a near-catastrophic ripple in the space-time continuum."

      but they just might

      "come chasing after me with their AK-47s, immediately after I perform my proof-of-concept experiment where I send my dog 1 miunute into the future, forcing a dramatic, hair-raising flight by my friend who's videotaping the whole thing for posterity, ending in an accidental trip back in time which results in a near-catastrophic ripple in the space-time continuum."

      --
      "Personal ownership is a hallmark of conservative capitalism. And I don't believe I am entitled to anything that I did n
    11. Re:That's nothing... by Your+Pal+Dave · · Score: 1
      What the hell's a Jigawatt?


      The correct phonetic pronounciation of the word "Gigawatt", or 10^9 Watts (Not 2^20 watts).
    12. Re:That's nothing... by sharkey · · Score: 1
      Yeah, well, it's not like they're going to come chasing after me with their AK-47s, immediately after I perform my proof-of-concept experiment where I send my dog 12 miunutes into the future, forcing a dramatic, hair-raising flight by my friend who's videotaping the whole thing for posterity, ending in an accidental trip back in time which results in a near-catastrophic ripple in the space-time continuum.

      Or a good look down Lea Thompson's dress.

      --

      --
      "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
  4. Insanity by Anonymous Coward · · Score: 1, Insightful

    For a consumer power supply, this thing is insane. I mean, there are certainly applications for it with today's use of RAID arrays, SLI video cards and Pentium 4 processors, but we should really be asking whether using this much electricity on running a single computer is really worth it.


    "Benchmark 2006: How many drums of oil does your computer burn a year?"

    1. Re: Insanity by Black+Parrot · · Score: 4, Funny

      > For a consumer power supply, this thing is insane. I mean, there are certainly applications for it with today's use of RAID arrays, SLI video cards and Pentium 4 processors

      Also good for arc welding, starting cars with dead batteries, electrifying the fence around your ranch, firing your railgun, and giving yourself electroshock therapy to prevent you from buying another one in the future.

      --
      Sheesh, evil *and* a jerk. -- Jade
    2. Re: Insanity by PakProtector · · Score: 1
      Also good for arc welding, starting cars with dead batteries, electrifying the fence around your ranch, firing your railgun,

      One would think one would use a large bank of Capacitors?

      --

      Edward@Tomato - /home/Edward/ man woman
      man: no entry for woman in the manual.
      "Qua!?"

    3. Re: Insanity by Anonymous Coward · · Score: 0

      Perhaps, but perhaps one needs this early, and often. Compare the power-balance of a railgun in FPSs that have a recharge time, with those that don't, and I can see where this need might arise.

    4. Re: Insanity by name773 · · Score: 1

      preferably at high voltage, yes.

      although there are probably some large caps in that psu, you'd want a whole bunch more.

      you should see the capacitor banks at the university of wisconsin-madison (i went on one of their tours). they use them to power plasma experiments for short periods of time.

      google for coilgun if you're interested in this stuff

    5. Re:Insanity by LoRdTAW · · Score: 2, Insightful

      I hope you and everyone else reasises that it only draws 1kw if the total system load is 1kw. A powerful setup might burn 500W and thats about it.

      "Benchmark 2006: How many drums of oil does your computer burn a year?"

      I agree. While 1kw is a gimic really, I would like to see power consumption come down. My whole home has those compact flourescent light bulbs so right now my computer is the biggest power draw in the house. If I left most of the major lights on (about 18 bulbs) the draw would be only 250W.

    6. Re:Insanity by arivanov · · Score: 4, Informative

      Not with Pentium 4. There is no standard OEM MB out there to carry the number of Pentium 4s to get that far. And the special ones are actually designed together with a power supply and a case.

      In fact there is just a single "standard" MB I can think of to use with this beast.

      It is the Assus 8 Opteron MB which has 4 CPUs on board and 4 CPUs on a daughther card. If we assume normal Opteron and throw in some video, cooling and disks in you end up having a 700W+ maximum power consumption.

      If someone can think of something else to generate that much power without coming with a dedicated power supply - post it. I can't.

      --
      Baker's Law: Misery no longer loves company. Nowadays it insists on it
      http://www.sigsegv.cx/
    7. Re:Insanity by lee1026 · · Score: 0

      I have had various heat pumps that suck up 500 watts easily. a kilowatt PSU means that I won't have to get a extra PSU just for that heat pump.

    8. Re:Insanity by Fred_A · · Score: 2, Insightful

      You don't have a refrigerator ?

      That's typically the biggest power draw by far in any house (unless your computer is an IBM system/370).

      --

      May contain traces of nut.
      Made from the freshest electrons.
    9. Re:Insanity by sjames · · Score: 3, Insightful

      I agree. While 1kw is a gimic really, I would like to see power consumption come down. My whole home has those compact flourescent light bulbs so right now my computer is the biggest power draw in the house.

      It's not as gimmicky as it might seem. I sincerely HOPE nobody's desktop system actually draws a Kw, that's not the whole story. The closer a supply's output is to it's max rating, the more ripple there is and the more the voltages tend to sag. It also means the internal parts in the P/S will be running close to their max heat rating.

      So, a power supply that never sees more than 50% of it's rated load will run cool and very stable and will have a long service life. Looking at the green aspects, this P/S won't end up taking space in a landfill next year.

    10. Re:Insanity by LoRdTAW · · Score: 1

      Forgot that bit. But its not continuous so it might average out less then the pc in the end.

    11. Re:Insanity by Fred_A · · Score: 1

      Not sure but I feel it's unlikely, a refrigerator is a real power sink, especially in warmer climates. Although I guess that really depends on the PC... Here I have 3 machines running almost constantly and a few occasional ones on top of that so the sum of them probably beats the fridge :( The idle ones and the unused screens are always off though.

      Refrigerators have gone *much* better lately. In Europe the efficiency rating is displayed on all new machines and very few are rated above "B".
      Anyone who has an elderly model could probably reimburse a newer one in power savings in a couple years at the most.

      --

      May contain traces of nut.
      Made from the freshest electrons.
    12. Re: Insanity by Anonymous Coward · · Score: 1, Informative

      I am constantly amazed that some people think that a couple of kilowatts is a lot of power. It is not. If it was a lot of power, then the breakers contacts for your in-house S/B wouldn't be about the size of a pencil eraser.

      Let's put it in perspective (all units KWe unless noted):

      A refrigerator when the compressor is running uses about 1.5 KW.
      A microwave oven varies generally from 500W to 1.5 KW.
      Your clothes dryer and oven may use 1.5 KW.
      A hairdryer uses about 1.5 KW.
      Your car will use about 150 KW thermal at full power (varies depending upon the power of the individual car).
      I have run various pumps from fractions of a KW to 500 KW each.
      A small silicon refiner outside my hometown uses 60 MW.
      The residential areas of that same town use 30 MW (about 1 KW/person).
      A locomotive uses about 2 MW.
      A powerplant that puts out less than 100 MWe is considered 'tiny.'
      Large nuclear plants exceed 3000 MW thermal per reactor (yielding about 1000 MWe).

      A 1 KW power supply at 120V input will draw less than 10A from your wall outlet. I have drills that use more current.

    13. Re: Insanity by d3ac0n · · Score: 1

      Pencil Eraser?? Geez. The main fuses in my house are the size of shotgun shells! of course, My house used to be owned by an electrician, so that might have something to do with it...

      --
      Official Heretic from the "Church of Global Warming". Proven right thanks to whistle blowers. AGW = Flat Earth Theory
    14. Re:Insanity by julesh · · Score: 1

      So, a power supply that never sees more than 50% of it's rated load will run cool and very stable and will have a long service life.

      I suspect computers that draw even 500W are few and far between, though. I know I did an overnight measurement of power consumption for my house a few weeks back, after installing a frost protection heater in the shed, and the total usage came in at about 4kWhr over a 9 hour period. During this time I had 2 computers running constantly (without monitors), along with a fridge, chest freezer, dehumidifier, said frost protection heater, router/ADSL modem, overnight lighting circuit (about 30W) and various appliances on standby. I don't have figures for the computers, but they can't be very high given that result.

    15. Re: Insanity by alienw · · Score: 2, Insightful

      Well, the difference is that none of those things run _continuously_ like a computer does. The fridge only runs about 10-30% of the time. The hairdryer, microwave oven, and so on run for a few minutes / day. A really power-hungry computer can jack up your electric bill pretty fast. If you use up 1kW on average, that's a $100/month electric bill.

    16. Re:Insanity by alienw · · Score: 1

      Refrigerators are fairly efficient, actually. They have a high power draw, but unless you open it every 5 minutes, it will very rarely cycle on. Heating and air conditioning are by far the worst offenders. Even gas heaters use a lot of power to run the fan.

    17. Re:Insanity by sjames · · Score: 1

      My finding is that even dual CPU servers draw just a bit over 200W peak unless they have more than two HDs installed.

    18. Re:Insanity by Ironsides · · Score: 1

      You don't have a refrigerator ? That's typically the biggest power draw by far in any house (unless your computer is an IBM system/370).

      Ovens and Dryers typically have a higher power draw than a fridge. They're also on their own circuit. Most fridges I have seen plug into the standard 120v circuit.

      --
      Fly me to the moon Let me sing among those stars Let me see what spring is like On jupiter and mars
    19. Re:Insanity by Alsee · · Score: 1

      Heay, how else am I supposed to dry my hair while reading Slashdot?

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    20. Re: Insanity by kimvette · · Score: 1

      Disassemble one of those fuses and see how small the fusible link is. Don't base your judgement of the size of the conductor on the visible outer cardboard-covered glass housing

      --
      The Christian Right is Neither (Christian nor right). See: Matthew 23, Matthew 25, Ezekiel 16:48-50
    21. Re:Insanity by toddestan · · Score: 1

      Even gas heaters use a lot of power to run the fan.

      Atleast with the heater, the energy the fan uses ends up as heat, so all that really ends up happening is that you spend a little bit of electricity to save some gas. Where I am in in Minnesota, gas heating is only slightly cheaper than electrity, so it doesn't matter much if I end up heating electrically or by gas. Hence, this time of year I can run the computer, lights, etc. for pretty close to "free", since the increase in my electric bill will simply be countered by a decrease in the gas bill.

      Air conditioners are the real killer. Especially since it has to run even harder to counteract the energy used by lights, computers, its own fan, etc.

    22. Re:Insanity by toddestan · · Score: 1

      I have only seen one home computer that drew power on the older of a kilowatt.

      It was a dual CPU AMD Athlon MP system. It had a peltier cooler on each CPU, and was watercooled. The water cooling setup had two pumps. It had 5 harddrives. And a DVD burner. It had 2 high end, dual head video cards. It had a seperate TV tuner card. It had 4 CRT monitors (1 19" and 3 17"). And a high end speaker set up. So I'm guessing a kilowatt there, easily.

      This was when I lived in the dorms, and electricity wasn't metered. The guy left the machine on 24/7, and he did not have power saving features enabled at all (so the monitors ran ~16 hours a day, as he only shut them off when he slept. Harddrives were always spinning). I'm really surprised he never caused any breakers to trip or fuses to blow.

    23. Re:Insanity by mrchaotica · · Score: 1

      What about a single CPU board with a dual-core Pentium 4, an overclocked FSB (which can raise heat production considerably), two high-end video cards running in SLI (also overclocked), and a RAID array with multiple 10,000 RPM (or 15,000 RPM even) hard disks? I doubt it would manage 700 watts, but it might at least beat 500.

      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

    24. Re:Insanity by julesh · · Score: 1

      I have only seen one home computer that drew power on the older of a kilowatt.

      It was a dual CPU AMD Athlon MP system. It had a peltier cooler on each CPU, and was watercooled. The water cooling setup had two pumps. It had 5 harddrives. And a DVD burner. It had 2 high end, dual head video cards. It had a seperate TV tuner card. It had 4 CRT monitors (1 19" and 3 17"). And a high end speaker set up. So I'm guessing a kilowatt there, easily.


      I don't think so, actually. The way I see it: CPUs = 100W, Cooling = 100W, Hard drives = another 100W, video cards = 150W. Monitors and speakers don't draw fram the main PSU. The rest, probably not a lot. Call it 500W total; an 850W supply should be more than adequate for this one.

  5. No one cares! by John+Nowak · · Score: 3, Insightful

    I thought this was Slashdot, not GHZWATTMBCIRCLEJERK.

    1. Re:No one cares! by mattjb0010 · · Score: 2, Funny

      I thought this was Slashdot, not GHZWATTMBCIRCLEJERK.

      There's a difference?

  6. King? by rookworm · · Score: 4, Funny
    1KW is king

    You obviously have not seen my flux capacitor

    --
    The toad can't burp - and for some reason can't fart either, so it swells up and eventually explodes. --Anonymous Coward
    1. Re:King? by Mercano · · Score: 1

      And here I thought you were just happy to see me.

      --
      #include <signature.h>
  7. Buh? by Phariom · · Score: 3, Funny

    "In the quest for maximum PC performance, you cannot have too much of a good thing. The enthusiasts have shown us that two video cards are better than one, as are two hard drives, and faster is always better."

    Preposterous!

    The next thing they'll be telling us is that it's better to have $1000.00 than $100.00, vehicles with better gas mileage will save money, doctors make more money than fry cooks, and Linux is better than Windows.

    1. Re:Buh? by Anonymous Coward · · Score: 5, Interesting
      The next thing they'll be telling us is that it's better to have $1000.00 than $100.00, vehicles with better gas mileage will save money, doctors make more money than fry cooks, and Linux is better than Windows.
      I don't know about you, but I'd rather have a $100 price tag than a $1000 one, a $9,000 vehicle with 39 MPG will probably cost less than a $29,000 one with 49 MPG, I've met some shifty doctors and once a rich fry cook (I think he was selling weed to the stoners that hang out at the McDonalds...), and if you'll excuse me, I have to manually edit some files for the next week trying to get my sound card working because Windows sucks!
    2. Re:Buh? by Anonymous Coward · · Score: 0

      I can see you're trying to make some kind of point, but you more or less lost me after $100.

      Ba-dum-ching.

    3. Re:Buh? by Phariom · · Score: 1

      I stand corrected. But then again, many people alter statistics to go with their "facts." I read somewhere on Wikipedia that 77% of all people know that.

    4. Re:Buh? by RobertLTux · · Score: 1

      once a rich fry cook (I think he was selling weed to the stoners) umm then he would not be a "fry cook" but a Farmecy Teck with a food service sideline

      --
      Any person using FTFY or editing my postings agrees to a US$50.00 charge
  8. Finally.... by Rooked_One · · Score: 3, Interesting

    A PSU that can run two high end computers. Its funny but very intresting if it can do this without a problem.

    1. Re:Finally.... by dancallaghan · · Score: 1

      Yeah that is interesting. I wonder where the line of efficiency lies ... like, is it more efficient to pack all your power transforming into one box, or to separate it out? I imagine you save on constant overheads by combining, but increase your need for heat dissapation ...

    2. Re:Finally.... by Anonymous Coward · · Score: 2, Interesting

      Think more along the line of three to five computers if they are high end AMD based computers. A high end amd computer will on avg, use 200-300w from the wall when running at max speed.

      http://www.silentpcreview.com/article28-page4.html

    3. Re:Finally.... by josephdrivein · · Score: 1

      Surely, it will be quite annoying if you have to reboot both simultaneously.

    4. Re:Finally.... by erik_norgaard · · Score: 1

      "A PSU that can run two high end computers."

      Yeah, this is great, when the PSU fails, both your computers will be down.

    5. Re:Finally.... by heinousjay · · Score: 1

      What about SLI 7800 GTXs? That'll boost draw a bit.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
  9. How great by rainer_d · · Score: 1

    I love powerful PCs/workstation (drools over Dual-Core Dual HP XW9300).
    But I also hate the noise of powerful PCs.
    This freakshow of a power-supply is IMO useless in any real-world scenario (except for maybe being a good bad example), in addition to setting a silly precedent for non-intelligent and downright wasteful use of resources.
    People should get used to the fact that soon they won't be able to afford the power-consumption of such a beast anymore.

    --
    Windows 2000 - from the guys who brought us edlin
    1. Re:How great by Bananatree3 · · Score: 1
      This freakshow of a power-supply is IMO useless in any real-world scenario

      Unless, that is if you have your own server rack in your basement. THEN it does come in handy. But you are correct, this kind of thing is definitally overkill for even the totally suped-up computers

    2. Re:How great by GeffDE · · Score: 1

      Who the hell are you? Steve Jobs?

      --
      It has been a nervous year, with people beginning to feel like Christian Scientists with appendicitis.
  10. MOD PARENT RIDICULOUS by Anonymous Coward · · Score: 0

    ...but funny

  11. Hang on a minute... by MichaelSmith · · Score: 0
    1000W of power output with 1100W peak

    So this power supply is running continously at 91% of its rated peak power. That's totally mad. Most devices I can think of run normally at less then 50% of peak power. That's why its called "peak".

    The peak power in this case is more like slightly greater than normal consumption. Lots of devices (fan motors for example) consume 200% normal power during startup.

    1. Re:Hang on a minute... by darkitecture · · Score: 1


      So this power supply is running continously at 91% of its rated peak power. That's totally mad.

      Why is it mad? Different strokes for different folks. A normal car engine would probably shriek and prolapse if you tried to run it at 91% for 99% of the time, but most jet engines are run very near peak nearly all the time. They're just designed differently.

      I would hazard a guess that most reputable computer PSU manufacturers design their units to manage such a load over extended periods. Albeit some are more successful than others but I don't see it as being all that crazy a proposition.

    2. Re:Hang on a minute... by Lisandro · · Score: 4, Informative

      The power supply does not deliver 1000w all the time. 1000w with 1100w peak means that the PSU is rated to deliver up to 1Kw constantly and up to 1,1Kw for brief periods; but the PSU will deliver only the power that it's requested from them.

          Switching PSUs waste some power, of course, but are among the most efficient types of electrical power supplies available - that's what make them so well suited for computers.

    3. Re:Hang on a minute... by Anonymous Coward · · Score: 0

      "them" = "it", sorry.

    4. Re:Hang on a minute... by LoRdTAW · · Score: 1

      Switchers arent all that efficent. Have a look at this pdf http://www.switchpwr.com/gnx-250.pdf. And this info is from Antec's site for one of there 500W psu's:
      Efficiency Up to 85%
      115V - Full load 76%; Typical load 82%, Light load 77.9%
      230V - Full load 80%; Typical load 85%, Light load 79.45%

      The higher the load the less efficent it becomes. At full load (120v) it wastes nearly 25% of the input power!

    5. Re:Hang on a minute... by Lisandro · · Score: 1

      Which, for electrical power supplies, is actually fairly good compaing the alternatives. Switching PSUs are very failure prone and usually have awfully noisy outputs, but they can be made small, relatively cool and efficient.

    6. Re:Hang on a minute... by DoctorStarks · · Score: 2, Informative
      Absolutely correct, and that's the important point.

      This supply is not burning 1 kW all the time it sits there. It is providing exactly the same amount of power as your current power supply does. The only thing that it offers you is more headroom if you suddenly need to use your USB arc-welder.

      And with efficiencies of close to 90%, these types of switching power supplies don't heat your room up when they run. Your processor and video card do, though.

    7. Re:Hang on a minute... by Anonymous Coward · · Score: 0

      Most devices I can think of run normally at less then 50% of peak power.


      "less then"!="less than"

    8. Re:Hang on a minute... by Ohreally_factor · · Score: 1

      The only thing that it offers you is more headroom if you suddenly need to use your USB arc-welder.

      I have a PoE arc welder, you insensitive clod.

      --
      It's not offtopic, dumbass. It's orthogonal.
  12. Thanks for telling us over the net. by Anonymous Coward · · Score: 0

    We should be there shortly. Knock, Knock. DOJ.

  13. math correction by User+956 · · Score: 1

    that should be ( 1000w x 0.125 cents_per_kwh x 24hours x 30days / 100). As DaVinci himself wrote in the Codex Leicester, "My bad".

    --
    The theory of relativity doesn't work right in Arkansas.
    1. Re:math correction by ghettoboy22 · · Score: 1
      0.125 cents_per_kwh


      DAAANG! I want that electricity bill. Around here a KWH usually runs $0.125, or 12.5 cents. Sorry to nitpick but that's like the Taco Bell that advertises the ".99 cents" taco and looks at you funny when you tell them to keep the change from the penny you pay with.
    2. Re:math correction by heinousjay · · Score: 1

      Top Ten Chuck Norris Facts.

      Stolen. For shame.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
  14. Just imagine.. by sniepre · · Score: 3, Funny

    Just imagine how many neon lights and LEDs you could power in your modded case with that thing! It'd be like the sun!

    Everyone knows, for every sticker or light-effect you add to your case, it's an honorary +50Mhz boost!

    --
    Is not life a hundred times too short for us to bore ourselves? -Friedrich Wilhelm Nietzsche
    1. Re:Just imagine.. by User+956 · · Score: 3, Funny

      Just imagine how many neon lights and LEDs you could power in your modded case with that thing! It'd be like the sun!

      You mean you can't look directly at it without going blind? Dude, most "overclocker premodded" cases come like that out of the box.

      --
      The theory of relativity doesn't work right in Arkansas.
    2. Re:Just imagine.. by WebCrapper · · Score: 1

      Yea, I could see someone decking their entire case out with LEDs. That'd make the case look like the house on the Griswolds Christmas vacation...

      Talk about *Bling*

    3. Re:Just imagine.. by Technician · · Score: 1

      Just imagine how many neon lights and LEDs you could power in your modded case with that thing! It'd be like the sun!

      I have an idea what that would look like. At a local cinema the projectors use a 1600 Watt high pressure Xenon bulb. It gets real bright inside the lamphouse.

      --
      The truth shall set you free!
    4. Re:Just imagine.. by fr3nch_com · · Score: 1

      you mean how the racing stripe on my 92 civic gives me an ubber HP boost?

      --
      PHP Developer Virginia this sig sold out!
    5. Re:Just imagine.. by imboboage0 · · Score: 1

      Everyone knows, for every sticker or light-effect you add to your case, it's an honorary +50Mhz boost!
      Sweet.... so i'm overclocked from 1.8 to...... 3.55. Seriously. I have a lot of LED fans, a neon light, 500W PSU, and case badges out the ass.

      You mean you can't look directly at it without going blind? Dude, most "overclocker premodded" cases come like that out of the box.
      I ACTUALLY HAVE THAT CASE ASSHOLE!!! =P It's the Logisys Dracula Black Special Edition. Picked it up for 70 or so at Newegg.
      Seriously though, I actually have that case. And you're not an asshole. And it DOES blind you. And It looks better with red fans instead of blue. XD

      --
      Honesty may be the best policy, but by process of elimination, dishonesty is the second best policy.
    6. Re:Just imagine.. by Ohreally_factor · · Score: 1

      I got tired of waiting for the G5 notebooks from Apple, so I put a VTEC sticker on my powerbook.

      --
      It's not offtopic, dumbass. It's orthogonal.
  15. Re:whooboy by headwes · · Score: 1, Informative

    Well, not quite... That 1000 watts is only what the suppy is capable of. The actual draw will be the combined needs of the computer's individual components, plus any inefficiencies inherent to the power supply. Likley this will be well under 1000 watts. Even so, its silly.

  16. Just a kw? Pshaw... wake me when... by rob1980 · · Score: 2, Funny

    We get a 1.21 gigawatt power supply.

  17. Read the article by User+956 · · Score: 1, Informative

    No way. If you check the specs, that thing runs continuously at 91% peak power. So, as I said, running a few apps, you're looking at a hundred bucks a month extra in your power bill (at 12.5cents per kilowatt/h).

    --
    The theory of relativity doesn't work right in Arkansas.
    1. Re:Read the article by MechaStreisand · · Score: 5, Informative

      No, sir, the power supply is a switcher, not a linear power supply. All computer power supplies are. They do not operate by continuously wasting power - instead they transform the line power into the desired voltage and current at around 88% efficiency (depending on the model) all the way from a minimal load to a full load. In fact, for a normal load, this power supply won't draw any more wall current than a 300 watt supply - but it will be able to draw a lot more if it needs to, without failing, if its claims are true.

      --
      Disclaimer: IANAL. This post is, however, legal advice, and creates an attorney-client relationship.
    2. Re:Read the article by User+956 · · Score: 1

      In fact, for a normal load, this power supply won't draw any more wall current than a 300 watt supply - but it will be able to draw a lot more if it needs to, without failing

      Readings from a device such as a kill-a-watt Kill-a-watt vary, depending on computer load. I propose someone bites the bullet and tests the efficiency of this thing at idle, and at load, so we can see how much power it's wasting.

      --
      The theory of relativity doesn't work right in Arkansas.
    3. Re:Read the article by Anonymous Coward · · Score: 0

      88% efficiency? Or . . . 88 MILES PER HOUR??

    4. Re:Read the article by Rufus211 · · Score: 2, Interesting

      > around 88% efficiency (depending on the model)

      If you read some real powersupply reviews (where the majority is real data, not press photos) on X-bit labs such as this one or this one you see that normal PSUs are more like 70-80% efficient in their good range, with only one hitting 90% efficiency. The problem with switcher PSUs is that below a certain power draw their efficiency drops off significantly. For these units it's around 100w. It'll be interesting if X-bit does a review of this unit to see what its efficiency curve looks like.

    5. Re:Read the article by LoRdTAW · · Score: 4, Informative

      I want everyone to realise what efficency means. Simply put it means that if a powersupply is 90% efficent and you are drawing 90 watts on its output, you would be drawing 100W on the input. This is because of the 10% loss during the conversion, hence 90% efficiency. I guess you dont know the difference between a switcher and a linear. A power supply does indeed waste power but thats a given. Nothing is 100% efficent. There is an idle current so to speak but usually very very small. A power supply only draws what the load demands plus its own internal loss.

      The switcher immediatly converts the ac line current to dc and takes the ripple out using 2 or 3 big fat capacitors. Thats why it sparks when you plug a cold switcher in, the caps charge up. The dc then feeds a transistor which is controlled by an oscillator and produces a 20+ KHz square wave. This feeds some high frequency transformers that kick the power down to the necessary voltages like 3.3, 5, and 12 volts. Each voltage gets its own transformer, more caps to filter out the high frequency and then to regulators for each voltage. Thats the benefit of a switcher, light weight and compact for the power it converts(although more complex and only a 70-80% efficiency). On a side note: If you ever wonderd why aircraft use 400Hz power here is your answer, smaller and lighter power systems.

      A linear would take the 120/240v line power at 60/50HZ and put it strait through a big fat transformer made for 50/60 hz and lower it to 3.3, 5 and 12 volts then each to a set of smoothing caps and regulators. A 1 kw linear would weigh oh id guess 20-30 pounds! The higher the frequency, the less turns of wire and smaller core a transformer requires. Plus it would be more efficent then a switcher.

      Each of those power supplies have there respective efficiencies but in no way does the linear waste it as you imply. Please if you dont know what you are talking about then dont post misinformation.

    6. Re:Read the article by LoRdTAW · · Score: 1

      oops man I messed up. A linear is worse than a switcher in terms of efficiency. as low as 40% and normally around 50% as high as 60 maybe. Its nearly 6am, I have the flu and I cant sleep :-p.

    7. Re:Read the article by User+956 · · Score: 1

      Its nearly 6am, I have the flu and I cant sleep

      No worries, man. That's nothing compared to 18 beers.

      --
      The theory of relativity doesn't work right in Arkansas.
    8. Re:Read the article by Gordonjcp · · Score: 1

      A 1 kw linear would weigh oh id guess 20-30 pounds!

      Off by a fair bit. Look at old S100 systems, where they almost always used linear PSUs rated at a couple of hundred watts. They could easily weigh over 15kg.

    9. Re:Read the article by Kitsune78 · · Score: 1

      Glad to see your second post.. I was going to say "show me one of these magical linears" .. heh.. But, seriously, does anyone even produce an ATX/BTX Linear? Obviously I'm not talking physical form factor, I'm talking about motherboard/system output specs.

  18. okay Lets start counting. by JollyFinn · · Score: 5, Insightful

    I just rounded few PEAK consumption figures.

    125 wats x2 for the GFX cards.
    100 Wats x4 for the fastest dualcore opterons.
    15 wats x 10 for the 15krpm SCSI:s.
    10 wats x 16 for ram.
    Soundcard,chipset,network, DVD writer. 40 wats total.

    1000 wats total,

    TYAN thunder K8QW is the motherboard where everything fits.

    Sure 1kw is overkill for with mass market enthuastics but don't underestimate the needs of the rich.
    So 8 cores and 32GB of ram, and large SCSI raid array and two fastest GFX cards, it might be overkill but its most certainly the fastest system, for everyday linux desktop usage, with a multithreaded app.
    Sure the system is not cheap, but there are multiple situations where such "desktop" system would be warranted.
    One is with a 100k$ per user workstation application use by 100k$ per year employee, another is when you have millions and don't care about the price.

    --
    Emacs is good operating system, but it has one flaw: Its text editor could be better.
    1. Re:okay Lets start counting. by Tim+C · · Score: 1

      it might be overkill but its most certainly the fastest system, for everyday linux desktop usage

      Might be overkill? That system has serious grunt power; there's no way it's warranted for "everyday... desktop usage" unless your idea of "desktop usage" is serious number crunching. Scientific work, rendering, large scale video editing, yes; "desktop usage", absolutely not.

    2. Re:okay Lets start counting. by BrynM · · Score: 1

      With power that big, we could go back to the days of plugging our monitor into the PC's power supply, right? I kinda miss those days. It was easy to just attach the monitor's power supply cable to the video cable with some zip ties and have everything tidy. Now that I have a dual display system and lots of USB hoopla, every cable that can be kept tidy helps.

      --
      US Democracy:The best person for the job (among These pre-selected choices...)
    3. Re:okay Lets start counting. by TallMatthew · · Score: 2, Funny
      Might be overkill? That system has serious grunt power; there's no way it's warranted for "everyday... desktop usage" unless your idea of "desktop usage" is serious number crunching. Scientific work, rendering, large scale video editing, yes; "desktop usage", absolutely not.

      Yeah, but think how fast Google's homepage will load!

    4. Re:okay Lets start counting. by SirCyn · · Score: 1

      The monitors never actually ran off the computer's power supply. It just used the switch in the powersupply to turn the monitor on and off.

      Mod your current power supply if you want to run monitors off it. IEC Female
      Just run the wires to where the power comes in.
      Then use something like this Converter or dig out an old IEC Male to IEC Female "extention" cord.

    5. Re:okay Lets start counting. by Jeff+DeMaagd · · Score: 1

      The correct spelling is "watt".

      What stick of memory uses 10W peak? Most people wouldn't be able to touch the memory if it were that hot, that's nearly a watt per memory chip, I'm pretty sure that assumtion would result in memory that runs hotter than RAMBUS memory does.

      I would think that such drives would be remote storage as very often more than one person would need to use the data.

      Are there workstation apps that can use SLI, or are you assuming that a person would be using four separate screens? When I see commentaries and behind the scenes footage, I never see computers with four screens.

    6. Re:okay Lets start counting. by starman97 · · Score: 1

      Last time I looked, DDR PC2100 2GB DIMMs used 25W each.
      so each Opteron has 100W for the CPU + 100W for the RAM on a
      Quad board. That's just power dissipation by the part, the switching
      power supply is at best 80-90% efficent, so add 20-40W per CPU.

      --
      Starman97@Gmail.com (bring it on spammers)
    7. Re:okay Lets start counting. by Lisandro · · Score: 1

      Actually it's even simpler - the female conector for the monitor is hooked directly to the AC input in those old PSUs. It's exactly the same as plugging the monitor directly to the mains.

    8. Re:okay Lets start counting. by protohiro1 · · Score: 1

      I can't think of an application that would make a desktop like this necessary. 4 proc 8 core? No, that is overkill. If you are rendering, you would build a render farm for that price. If you need a large scsi array you wouldn't put it on the desktop. If you are building a system (you need a machine with these kind of specs) you probably need to go to Sun or IBM and buy a real server.

      --
      Sig removed because it was obnoxious
    9. Re:okay Lets start counting. by dfghjk · · Score: 1

      "another is when you have millions and don't care about the price" or about your hearing.

      You honestly thing someone with "millions" lusts for a machine like this? Ten 15K hard drives in their desktop? I don't think so.

    10. Re:okay Lets start counting. by Elshar · · Score: 1


      I just rounded few PEAK consumption figures.

      125 wats x2 for the GFX cards.
      100 Wats x4 for the fastest dualcore opterons.
      15 wats x 10 for the 15krpm SCSI:s.
      10 wats x 16 for ram.
      Soundcard,chipset,network, DVD writer. 40 wats total.

      1000 wats total,

      Using a spellchecker cuz it's watts: Priceless

    11. Re:okay Lets start counting. by swillden · · Score: 1

      4 proc 8 core? No, that is overkill.

      make -j9

      I'd never have time to go to the bathroom again.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    12. Re:okay Lets start counting. by mnmn · · Score: 1

      You dont have to be RICH to need such power. Have you ever used the latest Autodesk products? (minimum 1GB ram req) or met people developing apps for oracle?

      Have you ever had to produce linux kernels, 20 of them with every iteration of some config list?

      Heck I can think of games which can benefit from that, but you dont really NEED that unless youre rich.

      The point is there are places and people who just need the power. Reminds me of the data systems racks of the STAR detector at Brookhaven National Laboratory.

      --
      "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
    13. Re:okay Lets start counting. by DarkVader · · Score: 1

      Well, those didn't run the monitor off the CPU supply, but Apple's ADC connector did.

      Most of the available monitors were LCDs, but there was a 17" CRT ADC monitor for a while.

  19. I wonder how many by NidStyles · · Score: 0

    Seagate 500Gb 7200 rpm SATA2 hard-drives this beast could power, and where the hell would I get a case that damn big.

    --
    Yes, I said it.
    1. Re:I wonder how many by grimJester · · Score: 2, Funny

      Only on Slashdot does a larger power supply make people think of porn...

    2. Re:I wonder how many by NerveGas · · Score: 1

      Seeing that Seagate's specs on that particular drive is an average operating draw of just 13 measly watts, it sounds like it could power quite a few. Given that the *max* 12V draw under spinup is rated at 2.8 amps, and that this power supply has a peak 12V current of 70 amps, even accounting for the rest of your system, you're probably going to run out of room to mount those drives before you run out of power.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
  20. Finally! by Belseth · · Score: 2, Funny

    I've been wanting to overclock my 4800 dual core to 19200. This should be a big help. The liquid Helium is a bit hard to work with but worth it.

    1. Re:Finally! by psergiu · · Score: 1

      The 4800 dual core MODEM to 19200 BAUD ???
      OH NOES ! Teh phone lines will melt from that speed ! :)

      --
      1% APY, No fees, Online Bank https://captl1.co/2uIErYq Don't let your $$$ sit in a no-interest acct.
    2. Re:Finally! by Alsee · · Score: 1

      I've been wanting to overclock my 4800 dual core to 19200. This should be a big help. The liquid Helium is a bit hard to work with but worth it.

      Me too!

      .

      .

      .

      But I can't stand teh damn squeeky heliumized voice "You've got mail!" when I hop on teh interweb every day.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  21. Overkill by Lisandro · · Score: 1

    And i don't mean overkill like in a piece of hardware too expensive for what it delivers: this is literally overkill, as a regular desktop PC will never ever approach that kind of power consumption. More does not always equals to "better than" - you could power three computers with that thing! It seems to be a quality product though, but $500 is too much to spend in something you don't need and probably never will.

        If you really need that kind of power, you don't have a "regular" PC, and there's better alternatives - several power supplies or an external one, like the ones used for large servers.

    1. Re:Overkill by mboverload · · Score: 1
      > And i don't mean overkill like in a piece of hardware too expensive for what it delivers: this is literally overkill, as a regular desktop PC will never ever approach that kind of power consumption

      Just like how a home user will never use 100 gigs of storage, right?

    2. Re:Overkill by ghettoboy22 · · Score: 1
      a regular desktop PC will never ever approach that kind of power consumption


      Never is a rather big statement. Just like "a regular desktop PC will never ever need more than a 10MB hard drive", or "a regular desktop PC will never ever need more than 640KB of RAM".
    3. Re:Overkill by Lisandro · · Score: 1

      Compared to, say, disk storage, power consumption on PCs always stood fairly constant (in the neighbour of 200w). If anything, computers consume less power with each new technology generation.

    4. Re:Overkill by Lisandro · · Score: 1

      You never needed more than 200-300w for a desktop computer, since the birth of the PC, and trust me, you never will. In fact, modern computers require less power than they used to.

    5. Re:Overkill by Anonymous Coward · · Score: 0

      I wholeheartedly agree with you. Insane really.

      I just calculated my PCs power consumption to see how much money it cost me per month.
      I have a modest 1GHz vi mini-itx with a 3,5" HDD and a DVD/CDRW in it. That together with a 15" LCD monitor is using on average 90 watts IF I use them 100% of the time on maximum (of course I'm not, since it is basicly a web-pc, the CPU is idle or at 50% most of the time when playing a DVD). If I use them both for 12 hours per day, 7 days per week, that will cost 4 dollars/month. That's it. Basicly nothing compared to the fridge or washing machine or the computer hooked up to the 1kilowatt PSU.

      With the equipment connected to this beast I don't even dare to imagine the energy cost.

    6. Re:Overkill by mrchaotica · · Score: 1

      Which, of course, is why my old 486 used a water cooling system, while my current computer has only a heat sink with fins about 3mm high, right?

      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

    7. Re:Overkill by Lisandro · · Score: 1

      What's your current computer? A modern processor can be cooled just peachy with a heatsink/fan combo... which is the way it has been since the Pentium days. Consumption also extends beyond the processor (which are power hogs) - drives, harddisks, perhiperials, etc.

          Don't take my word for it. Open your old 486 and almost surely you'll find a 200/250w PSU. Open your modern one, and you'll find one rated similarly.

    8. Re:Overkill by mrchaotica · · Score: 1

      Well, I was exaggerating a bit regarding the water cooling, but the point I was trying to make was that (most) modern CPUs put out a LOT more heat than old ones.

      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

  22. Who needs that? by bombshelter13 · · Score: 5, Interesting

    A few days ago, I installed a Thermaltake TWV-480 in one of my machines. This is a power supply that inclues a front bay panel with an LCD display telling you how many watts of power are currently being used. The machine is a Pentium 4 2.4ghz with a Radeon 9600 Pro, a CD burner, four hard drives and several USB devices.

    Since installing the panel, the machine idles around 50 watts or so, spikes up to perhaps 55 if I turn up the fan speeds (which is rarely necessary), and maybe 60-75 or so for a few brief moments when I'm doing something that requires heavy disk access like openning a large file (or group of files).

    I can't possibly imagine that newer, more powerful hardware would consume a full two orders of magnitude more power than this machine, especially given the great work we've all heard being done recently in heat and power efficiency with AMD's newer chips Cool 'n' Quiet tech and Intels Pentium Ms. So given that, who needs this much power?

    1. Re:Who needs that? by NerveGas · · Score: 1

      That's some relatively old hardware. Put in a video card that can draw 100 watts by itself, then start playing a game that maxes out both your CPU and your video card!

      As to your question about who needs that much power, nobody, at least not in a single power supply. Machines that really need that much have multiple, redundant power supplies. This is just about getting idiots to pay big money for bragging rights.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    2. Re:Who needs that? by Anonymous Coward · · Score: 0

      Two orders of magnitude would be 48kW delivered; very impressive. I think the phrase you're looking for is "twice."

      Frankly, I doubt your panel is reading correctly as 50W for a system with four HDDs is extremely low. No, *really* low. Too low. Sorry.

    3. Re:Who needs that? by bombshelter13 · · Score: 1

      It's older, but it's not stuff that's ever been known for being low on power consumption. P4s have prettymuch always been hot, power-draining things, and the older Radeon cores weren't necessarily the most efficient chips either, and I'd figure the extra hard drives would help swing the balance to the point where I'd have dificulty believing that a modern machine could consume more than maybe double, max, what this one does.

    4. Re:Who needs that? by coolGuyZak · · Score: 1
      Actually, twice 48 is 96... which has the same order of magnitude (10^1).

      Two orders of magnitude would be 10^2, giving a total of 4,800, using your logic.

      Luckily, most people ignore the actual number given (in this case 48) and reduce it to it's order of magnitude as well. In this case, the order of magnitude is 1 (10^1 being more pertinent to this discussion). So, if we take 10^1 & multiply it by 10^2, we get 10^3, or 1,000. QED.

    5. Re:Who needs that? by six · · Score: 1

      A few days ago, I installed a Thermaltake TWV-480 in one of my machines. This is a power supply that inclues a front bay panel with an LCD display telling you how many watts of power are currently being used. The machine is a Pentium 4 2.4ghz with a Radeon 9600 Pro, a CD burner, four hard drives and several USB devices.

      Since installing the panel, the machine idles around 50 watts or so, spikes up to perhaps 55 if I turn up the fan speeds (which is rarely necessary), and maybe 60-75 or so for a few brief moments when I'm doing something that requires heavy disk access like openning a large file (or group of files).


      your panel is obviously lying.

      the cpu alone may eat 50W idle (and a lot more than 55W under load), but there's no way for the whole system to run on such a low power ...

      why don't you try switching your 480W PSU for a 150W one (come on, it's still 3x more than needed) and tell us what happens ?

    6. Re:Who needs that? by brontus3927 · · Score: 2, Informative
      Something tells me that panel isn't configured correctly. Check out this website: http://www.jscustompcs.com/power_supply/Power_Supp ly_Calculator.php?cmd=INTEL

      Based on the limited information in your post, your computer would peak ~300W

    7. Re:Who needs that? by Kitsune78 · · Score: 2, Informative

      Umm.. Same PSU here, P4 505 (2.66Ghz/566Mhz FSB), 1 SATA Drive, a 9600, 2 120mm fans, DVD-R, and a water pump Is between 90-120 Watts depending on load, confirmed with my multimeter. 120-160 when overclocking. "Spikes" up near 200 or so when the drives spin up. Assuming I should shoot for 50% of rated capacity for reliability, that means even my crappy set up needs a "400W" PSU. Your processor alone should pull more than 50W..

    8. Re:Who needs that? by crabpeople · · Score: 1

      theres NO WAY your system only uses 55 watts.

      I have dual opterons, a geforce 6800 7 hdds a dvd burner, addin cards etc and my system wont even start with just a 600 watt psu. Or it starts and the voltages are all over the place, and the system is very unstable. I had to get a 450 and cable it to the drives to get power to the machine. And these are antec power supplies too so its not like im using cheap chinese shit. (its expensive chinese shit)

      What I dont get right now, is why you cant just use two power supplies like i do. Its bound to be cheaper than a stand alone unit. I had looked for a product like this about 6 months ago and definately would have baught one if the price was right.

      The CPU in your machine ALONE uses like 50 watts, so I think that your fancy LCD pannel is lying to you.

      --
      I'll just use my special getting high powers one more time...
    9. Re:Who needs that? by mnmn · · Score: 1

      Your panel tells you you dont need more than 55W.

      Tell you what. Just use the older IBM power supplies which can do 100W or 80W REAL QUIET. Thats more than you need right?

      Just keep a fire extinguisher close by.

      --
      "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
    10. Re:Who needs that? by MagnusDredd · · Score: 1

      No kidding....

      I have a file server with a 1400GB array running on a 300W power supply. It maxxes out at about 200W or so at post.

      Basic specs: K6-2 500, 1.6G Quantum PATA, (8) 250GB Maxtor 7200 RPM PATA, 3ware 7810 RAID card, Trident video card, Aopen CDROM.

      At some point I'll upgrade some of this, but it does the job very well.

    11. Re:Who needs that? by Anonymous Coward · · Score: 0

      Mr. Wolfe,

      Remember the good ole days of kicking the Sun UltraSparc with the kernel bug that caused it to lockup on while serving web pages with the highly multi-threaded sun web server?

    12. Re:Who needs that? by aka1nas · · Score: 1

      Prescott P4s consume significantly more power than your Northwood 2.4Ghz chip. Also, your video card was midrange when it was new, so it doesn't draw a ton of power compared to the high end cards of it's time, let alone the $600 monsters they are selling today.

    13. Re:Who needs that? by mrchaotica · · Score: 1
      What I dont get right now, is why you cant just use two power supplies like i do. Its bound to be cheaper than a stand alone unit.
      Because not everyone wants to splice together the ATX signaling wires, so that both power supplies turn on at the same time?
      --

      "[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz

    14. Re:Who needs that? by NerveGas · · Score: 1

      Sure thing. This Dax or Collin?

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    15. Re:Who needs that? by Lars+T. · · Score: 1

      Is that what the PS claims it delivers? Add at least 30% to that for what the supply wastes. Then look at starting up, where the real peaks show up.

      --

      Lars T.

      To the guy who modded me down from perfect to terrible Karma - Apple haters still suck

  23. how about a good power supply instead? by Wansu · · Score: 3, Insightful



    Most computer power supplies are crap. In the race to the bottom to get the lowest cost, quality and performance were the casualties. In previous power supply roundups and shootouts, a number of products didn't deliver rated faceplate performance. Some smoked. Forget thousand watt power supplies. Most general purpose computers need a reliable power supply that meets it's published specs at 350 watts.

    --
    Wansu, th' chinese sailor
    1. Re:how about a good power supply instead? by NerveGas · · Score: 2, Informative

      Well... there's a lot of room to fudge, and like so man other people have said, it's about amperage. Just about a week ago, I showed a coworker a couple of power supplies, one rated at 400 watts, the other at 425 watts. As I recall, the 400-watt power supply (which was quite expensive) could deliver upwards of 30 amps on the +12V line, where the 425-watt unit maxed out at 18.

      Even assuming that both of those supplies reached their published specs, if he's trying to run a high-draw, overclocked CPU and a high-draw video card (both of which draw their power from the +12V line, and even without overclocking can pull more than 18 amps), then it's fairly obvious that just reaching the rated specs - even at 425 watts - isn't *always* enough.

      steve

      --
      Oh, you're not stuck, you're just unable to let go of the onion rings.
    2. Re:how about a good power supply instead? by blincoln · · Score: 3, Insightful

      In my experience, PC Power & Cooling tend to make high-quality products.

      This review, however, is crap. If someone is writing about a PSU and can't bother to include whether it's UL listed or not in SIX PAGES of text, their site is a joke.

      UL listing is one of the most important things to look for in a PSU, yet almost none of them have it, and few if any review websites seem to care. If there's one thing in my computer that I want to be over-engineered for safety, it's the part that plugs into the wall socket.

      This one *is*, but I had to go to the manufacturer's website to find that out.

      --
      "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
    3. Re:how about a good power supply instead? by GigsVT · · Score: 1

      PC Power and Cooling is THE best power supply you can get. No matter what wattage you get from them, it's not going to suck.

      They've been around since the 80s, and have always been the king. People just ignored them in the tweaking market for a long time because their power supplies cost 10 times more than the discount ones like Enermax and Antec.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
  24. 1.21 gigawatts by flyingV · · Score: 0, Redundant

    Maybe when somebody makes a 1.21 gigawatt power supply, we can use it to transport ourselves back to a time when "more != better."

  25. Power Mac G5 Already Has One by Anonymous Coward · · Score: 0

    Big Deal...

    The new Power Mac G5 (Late 2005) model has a 1 KW power supply in its 'best' configuration (that's the configuration with dual dual-core G5's, or the 'quad' configuration as it's come to be known). In fact, this new model of Power Mac G5 uses a new heavy duty power cord with a different connector on the power supply end (not the 'usual' U.S. mains connector), and draws up to 12 amps form a 120VAC circuit. It's still very quiet, like all G5's. And the Power Mac G5 (Late 2005) has been shipping for several weeks now.

    1. Re:Power Mac G5 Already Has One by dfghjk · · Score: 1

      No PowerMac G5's are quiet except when they're doing nothing. Mine was the noisiest machine I ever owned. Sounded like a jet taking off.

      If you think the big power cord and special power connector make your computing experience better you must be a macboy.

  26. Hey... by NerveGas · · Score: 1


        I have a machine that draws upwards of 700 watts. But, that machine has 4 processers, 10 disks, and a few more goodies on it. And it doesn't use just one power supply, but three redundant supplies!

    steve

    --
    Oh, you're not stuck, you're just unable to let go of the onion rings.
    1. Re:Hey... by Octorian · · Score: 1

      Hehe... I used to run a machine that drew 800W. Of course that actually wasn't bad at all, when you consider what sort of machine it was...

      Sun Enterprise 4000
      8 x UltraSPARC-II processors
      2GB RAM (in 32MB DIMMs, so *a lot of sticks*)
      (CPUs and RAM spread across 4 CPU/Memory boards)
      2 hard drives
      2 I/O boards (ethernet, SCSI, fibre channel, etc.)
      CD-ROM drive, tape drive
      3-4 x 300W power supplies
      184W "peripheral" power supply (for the cdrom drive, tape drive, some extra backplane voltages)

      So for all that, 800W is actually pretty good.

      I eventually replaced that with a Sun Blade 1000 (workstation turned into a server) that only draws 300W (power supply rated for 925W, I think).

      Meanwhile, my file server (2 x P3, 6 drives, cd-rom, tape, lots of cards, fancy redundant power supply) only uses about 230W.

      Oh, and my Athlon64 Whizbanger desktop (/w a TruPower 550W supply) uses under 200W.

      Yes, having a Kill-a-Watt is really nice for figuring this all out :)

      (even told me that my managed ethernet switches use more power than I thought)

  27. Re:whooboy by meringuoid · · Score: 1
    if you do out the math, your average electricity cost (if you leave your computer on 24/7, running, say, bittorrent and other goodies) is going to be around a hundred bucks a month extra.

    Depends on the climate where you live, though. If you're in a part of the world where you have an air conditioner on most of the time, then this thing's going to cost you extra energy. If, however, you're in a part of the world where you have central heating on most of the time, then this behemoth of a PSU shouldn't cost you anything extra. Its waste heat warms the room, and the thermostat turns down the central heating system to compensate.

    I recall that sometimes in the winter back at university I was glad of my Athlon XP box :)

    --
    Real Daleks don't climb stairs - they level the building.
  28. Convenient Space Heater... by Anonymous Coward · · Score: 0

    In some parts of the world, despite all the best efforts of Climate Change, it can get cold during winter. During such times it can be necessary to keep warm. Sometimes this is achieved by ripping out furniture, skirting boards and doors, chopping them up into 'log' size pieces and burning them on the fire. This can result in warmth, however, the value of the property might have diminished and there could be drafts from a door burning too far. Furthermore, the doors and skirting boards eventually will run out, possibly before winter ends, and it might have been better to have just used the central heating. Not all buildings have central heating though, and sometimes it can seem wasteful to run central heating for a very large building, instead of, say, putting an extra jumper on. Should a jumper not be available or prove too unfashionable, and should it be just a tad nippy, then one of these little P.S.U. behemoths could be really, really handy as a Convenient Space Heater that just so happens to power a few CPU's. In my local 'Argos Extra' store normal electric heaters for rooms run at a couple of kilowatts and no more - that is the limits of the 13 Amp plug, as used with the safest plugs in the world, as found uniquely in Blighty. These heaters chuck out heat but they are dumb. If only that glowing wire was replaced with all kinds of CPU's - perhaps a selection of 486 DX 33's with a few 266 MMX's, maybe a couple of Pentium Pro's. All of them could be happily working away on a SETI project multithreaded in with one of those nuclear bomb simulations and the decoding the D.N.A. work needed by today's bio-medical-industries. Perhaps during tense situations in 'The War Against Terror' the beo-wulf-cluster of a Convenient Space Heater could be rented out to the Pentagon to help them sift through the intelligence chatter. Maybe they could pay, so the budget requirements from D.A.R.P.A. will be one of these P.S.U. babies with a new space heater from 'Argos'. They can have my drawerful of defunct C.P.U.'s as I am a loyal patriot determined to see victory in The War Against Terror. Does anyone know today's D.H.S. alert level, by the way?

  29. Ahum by jurt1235 · · Score: 2, Funny

    Also good for arc welding, starting cars with dead batteries, electrifying the fence around your ranch, firing your railgun, and giving yourself electroshock therapy to prevent you from buying another one in the future.

    So for the really multifunctional PC that is. Finally beyond the realm of computing!

    --

    My wife's sketchblog Blob[p]: Gastrono-me
  30. Re:whooboy by NerveGas · · Score: 1

    A kilowatt for bittorrent? I leave my bittorrents running on an Eden CPU, the whole machine uses something like 20 or 25 watts while it's running.

    steve

    --
    Oh, you're not stuck, you're just unable to let go of the onion rings.
  31. LOL at you and the by future+assassin · · Score: 1

    terrorists as I sold them that ball of tinfoil and told them it was pure plutonium.

    --
    by TheSpoom (715771) Uncaring Linux user here. I have nothing to add to this but please continue. *munches popcorn*
  32. Efficiency by pekoe · · Score: 1

    Point one: the blurb claims 66A (70A peak) on 12v, that's a peak of 840 watts. Since most things run off 12v these days, the claimed 1100 W peak is marketing spin.

    Point two: the blurb claims 85% efficiency... over what power range? Most of the enthusiast systems that Anandtech has look like they idle at 200W - so let's go crazy and say they peak at 400W. I doubt that any single chip gaming rig would use this PSU efficiently. Looks like it's designed to delivery an awful lot of power to a workstation, not an enthusiast PC.

    1. Re:Efficiency by DeathFromSomewhere · · Score: 1

      PCs also use +5V, +3.3V, and -12V.

      --
      -1 overrated isn't the same thing as "I disagree".
  33. lol by Anonymous Coward · · Score: 0

    Gotta love when people refer to servers at work as "theirs".

    "I have a machine with 24 processors and 64GB of RAM"

  34. a bolt of lightning! by mushadv · · Score: 1

    "One point twenty-one gigawatts?!! ONE POINT TWENTY-ONE GIGAWATTS?! Great Scott!"

  35. Mercy Mercy Me (the Ecology) by davFr · · Score: 1

    Do you sometimes where all those Watts you consume come from? Is it from Iraki oil, or from uranium?
    Do you think about the impact of over-consumation on the Earth? :o/

    --
    RIP Slashdot. I used to love you. dead account - but slashdot wont let me delete it.
    1. Re:Mercy Mercy Me (the Ecology) by Down8 · · Score: 1

      Or maybe it's from wind-turbines, or hydro-electric plants, or solar energy!

      The possibilities are endless!

      -bZj

      --
      .sig
    2. Re:Mercy Mercy Me (the Ecology) by Down8 · · Score: 2, Funny

      HA! ...over-consumation...

      Over-sexing mother earth? Impossible!

      -bZj

      --
      .sig
    3. Re:Mercy Mercy Me (the Ecology) by blackbear · · Score: 1, Flamebait
      Do you sometimes where all those Watts you consume come from? Is it from Iraki oil, or from uranium? Do you think about the impact of over-consumption on the Earth?

      uhhh, no?

      While over-consumption of most natural resources will likely lead to the eventual death of all species who depend on those resources, running out of oil and uranium will not. Further, while it is also true that the waste produced by over-consumation is often toxic, the amount of waste produced by uranium and oil used in electricity production is not a significant danger.

      Ironically, it is the so-called environmentalists who are forcing electric power companies to use more wasteful technologies to meet a rapidly increasing demand for electric power. The use of nuclear power produces zero emissions, and recycleable waste.

      Equally ironic is that it was Jimmy Carter, with the aid of Gerald Ford, who prevented US companies from recycling their nuclear waste by executive order in 1979, but while Ronald Reagan lifted the ban in 1981, there is still grassroots opposition to both new reactors and spent fuel recycling. This opposition makes little logical sense given the fact that nuclear reactors are a zero-emmisions technology (I don't think they had ionizing radition in mind when they coined that term.) and even without recycling, a relatively small amount of spent fuel has been created in the first place. In the last 40 years the total amount of commercial spent fuel would fill an American football field to a dept of 5 yards.

      The sad fact is, that we should be building nukes all over the US, and enjoying cheap plentiful electricity throughout the country. While doing this we should be closing down coal and oil fired power plants. This would, of course, cut green house emissions, which I don't much care about, but more importantly, it would cut pollutants in the atmosphere which I, and most other people, care about very much. A by product may also be the closure of natural gas fired electric power plants which, hopefully, would decrease industrial demand, and cause prices to fall for consumers.

    4. Re:Mercy Mercy Me (the Ecology) by PhraudulentOne · · Score: 1

      uhhh, no?

      So, you don't know?

      While over-consumption of most natural resources will likely lead to the eventual death of all species who depend on those resources, running out of oil and uranium will not.

      Death will result if we don't have clean energy in place before we run out of oil. If people (governments) keep fighting over oil when it really starts to run low, a lot of people will die.

      Further, while it is also true that the waste produced by over-consumation is often toxic, the amount of waste produced by uranium and oil used in electricity production is not a significant danger.

      Some would disagree. Oil is basically toxic any way you look at it. Nuclear waste is a big issue as well.

      Ironically, it is the so-called environmentalists who are forcing electric power companies to use more wasteful technologies to meet a rapidly increasing demand for electric power.

      Yeah I'm sure all those environmentalists are out to ruin the environment.

      The sad fact is, that we should be building nukes all over the US, and enjoying cheap plentiful electricity throughout the country.

      How about you build some of these (http://web.archive.org/web/20050306021056/http:// www.boeing.com/assocproducts/energy/powertower.htm l) instead - you've already paid taxes developing this technology. You also have the space to put it into action.

      http://web.archive.org/web/20050306021056/http://w ww.boeing.com/assocproducts/energy/powertower.html

      --
      You create your own reality - Leave mine to me.
    5. Re:Mercy Mercy Me (the Ecology) by aXis100 · · Score: 1

      Yeah I'm sure all those environmentalists are out to ruin the environment.

      I dont see any environmentalists picketing outside a fossil fuel power station. I see many tree huggers complain whenever nuclear gets mentioned.

      Which is cleaner, realistically? It's the nuclear.

    6. Re:Mercy Mercy Me (the Ecology) by davFr · · Score: 1

      Wake up, I did not say "use this or that energy source rather than oil or uranium"! I said : do not consume energy for crap such as nerdy 1KW supplies! Because available source of energy has an impact on the environment. Moreover, you certainly know (at least I hope) that oil reserve are limited and will be totally consumed in less than 50years. But do you know that there are limited amount of uranium on Earth?? Just enough for 100 years if we keep burning uranium at the actual speed. But certainly much less years if US start building nukes (and US will when oil will be gone). What does the NMCCO tell about that??

      --
      RIP Slashdot. I used to love you. dead account - but slashdot wont let me delete it.
    7. Re:Mercy Mercy Me (the Ecology) by fishbowl · · Score: 1

      >Do you sometimes where all those Watts you consume come from?

      About 7.5 million of mine come from solar powered plants. A small amount are from a wind farm. Some of then come from a couple of hydroelectric dams, and there are several conventional turbine generators that use natural gas that cannot be distributed, and would have been wasted. Unless we buy power from a neighboring state, there is no nuclear plant involved, and to my knowledge none of our electricity is generated using foreign oil, which would cost too much in transportation to be economical at all.

      So, where do your Watts come from?

      --
      -fb Everything not expressly forbidden is now mandatory.
    8. Re:Mercy Mercy Me (the Ecology) by blackbear · · Score: 1
      Wake up, I did not say "use this or that energy source rather than oil or uranium"! I said : do not consume energy for crap such as nerdy 1KW supplies! Because available source of energy has an impact on the environment.

      And my points were that:

      1. If we are foolish enough to use up all of our natural resources for frivolus purposes, then we will suffer much deservered hardship, but it will hardly kill us off.
      2. We are being as wasteful in our energy production as in our consumption, and much of this has to do with artifical and unecessary restrictions placed on the producers by government at the behest of people calling themselves environmentalists.

      Qite simply, if we had cleaner more abundant energy then it wouldn't matter what people do with the energy that they buy as long as everyone is consenting and no one gets their eye put out. And since we have the technology to do that now, it makes no sense to complain about wasteful uses by people with too much time and money on their hands.

      But do you know that there are limited amount of uranium on Earth?? Just enough for 100 years if we keep burning uranium at the actual speed.

      Yes, I am aware of that, but they've been quoting 100 years since I was in high school in the '80s. Like most scare statistics, it leaves out certain "difficult" variables. We've been on the verge of running out of oil, for example, for more than 20 years, and someday soon we really will be. However, we seem to find new reserves almost as fast as we increase consumption. As for uranium, by recycling we should be able to extend that 100 years considerably. It's difficult to gauge since I don't have much real scientific information on it, mostly I have just press releases and dumbed down reporter crap.

      Unfortunately, science has as much politics, opinion, and FUD as the fields of politics, editorial journalism, and marketing. Many scientists, most of the public, and nearly all college students seem to be ignorant of that.

    9. Re:Mercy Mercy Me (the Ecology) by PhraudulentOne · · Score: 1
      --
      You create your own reality - Leave mine to me.
  36. Think of the new product possibilities! by stunt_penguin · · Score: 1

    The USB powered coffee machine (not just mug warmer), or muffin/sandwich toaster thingy. Also, as well as powering your computer, this power supply will also heat your home, so that does away with the need for central heating too.

    It also comes with some vouchers for the world carbon market[carbonfinance.org]

    I waantsssss it, it'sssss miine!

    /gollum

    --
    When the posters fear their moderators, there is tyranny; when the moderators fears the posters, there is liberty.
  37. How ironic... by poptones · · Score: 1

    You berate this "freakshow of a power supply" while ranting about your need for a whisper quiet computer.

    Duuuuuuhhhh.

    If a power supply can crank a kilowatt without breaking too much of a sweat, what do you think it's going to do when running at a fourth of that? The cooling fan can run cooler and all those mambo heatsinks will help carry the heat out of the back of the case - as opposed to teeny heatsinks in a "less wasteful" powersupply that barely even get the heat away from the fets doing the power conversion.

  38. It's overkill, I agree. by Anonymous Coward · · Score: 0

    640 watts ought to be enough for everybody.

  39. Don't forget .... by ytr · · Score: 1

    to use oxygen free copper interconnects to get the best out of this!

    Don't waste energy on those steenking oxygen atoms.

    PS today's magic word is echelon - now I will end up on NSA's naughty list.

  40. 8 hours/day? by blorg · · Score: 3, Funny

    ...you turn your computer _off_!?

    1. Re:8 hours/day? by Alsee · · Score: 1

      Of course I turn my computer off sometimes, otherwise the 20 amp house circuit breaker would trip every time I tried to turn on the lights.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
    2. Re:8 hours/day? by Jace+of+Fuse! · · Score: 1

      I think that post was supposed to be funny. It's kind of like when a couple of muscle cars pull up to a drag strip and a clown pulls up in a little go-cart and waves at the crowd.

      --

      "Everything you know is wrong. (And stupid.)"

      Moderation Totals: Wrong=2, Stupid=3, Total=5.
    3. Re:8 hours/day? by Anonymous Coward · · Score: 0

      ~70% of electricity in the United States comes from fosil fuels.

      I fail to see the humour inherent by the mere suggestion of self-restriction as a form of conservation, particuarly when we are currently fighting a war for oil.

      Moreover, this mode of self-restraint would serve to lessen the extent of the damned confluence between computers left idle and the botnet gad-fly.

      Oh, but I clearly forgot: that would be bad for business.

  41. Talk about missing the point! by GrahamCox · · Score: 4, Insightful

    1kW is a joke. Wake me up when they announce that a computer with at least as much processing power as today's top of the line runs on 1mW of power (yes, one MILLIwatt). Boasting about 1kW is like boasting that your car gets 1mile to the gallon.

    1. Re:Talk about missing the point! by mnmn · · Score: 1

      The latest ARM9 chips can give you a few MIPS per mW. Yes you can take them down to microwatt levels too. Add some SRAM and flash (possibly stacked) to lower power and STN LCD screen, and you have a machine more powerful than than 1981 286 system, and its full 32-bit too.

      Someone probably said what you said i 1981. Find that person and WAKE HIM UP!!

      --
      "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
  42. So how does one calculate power requirements... by MrBandersnatch · · Score: 1

    Its always confused me slightly and its coming back to bite me on the ass since I now need to build a dual core SLI system (A-4800) with EIGHT hard drives. Given that SLI systems are often advised to have a 480W PSU minimum Im not quite sure a 650W even is going to be sufficient. Any pointers for an ignoramous while were on the topic of PSUs....am I actually a potential customer for one of these?

    1. Re:So how does one calculate power requirements... by crazypip666 · · Score: 0

      this site should help you out http://www.jscustompcs.com/power_supply/

    2. Re:So how does one calculate power requirements... by smoker2 · · Score: 2, Funny
      Well, professionals (and others) have been known to use an arcane mathematical system called addition .

      Equipment:
      Brain and / or calculator.

      Method:
      Visit the manufacturers homepage for each item you want to build into your system, find the technical specifications for that item, then find the specification for the maximum power draw for that item.

      Write that figure down, then repeat the process for each of the other system components. When you have data for all the devices, add them together to produce a total.

      Result:
      Buy a PSU that covers that total figure in normal usage.

      Next week we will be covering another difficult subject - Wearing trousers ~ How not to fall over while putting them on.

      Todays program was brought to you by the letters D,U,H !

    3. Re:So how does one calculate power requirements... by MrBandersnatch · · Score: 1

      Thanks, thats useful even though its not up to date. As I thought, with 8 drives and SLI, by the time I factor in cooling etc Im pushing even a 650W PSU (only just though and its doubtful peak load would even be reached but still...). That said Id have trouble justifying this beast over a 680W/700W at 1/3 of the price...still nice to kow its out there ;)

    4. Re:So how does one calculate power requirements... by MrBandersnatch · · Score: 1

      Awwwww, dat funnie! Id mod you up if I could :)

      So If I installed 8x 400GB Seagate drives (http://www.seagate.com/docs/pdf/datasheet/disc/ds _barracuda7200.8.pdf) drawing 12.8 Watts on average with a peak ampage of 2.8 (+/- 10%) I really shouldnt worry about the fact that the manufacturers product sheet doesnt tell me the peak draw (so I can just estimate it as @25W because Im *really* familiar with the normal peak draw on SATA drives) or about how many Amps my 12V rail will sustain?

      Phew, glad your addition system helped me clear that one up ;)

    5. Re:So how does one calculate power requirements... by yourlord · · Score: 1

      To calculate DC power you multiply the voltage by the current. So if it pulls 2.8A peak from the 12V rail then it draws 33.6Wpeak

      You're only going to hit that peak during spin-up.

      Get a controller that supports staggered spin-up (it spins each drive up sequentially) and you can reduce the overall requirements of the PS since it will not have to supply 268.8W to spin-up every drive all at once.

    6. Re:So how does one calculate power requirements... by Alsee · · Score: 1

      Get a controller that supports staggered spin-up (it spins each drive up sequentially) and you can reduce the overall requirements of the PS since it will not have to supply 268.8W to spin-up every drive all at once.

      Awwww, but that's not nearly as fun as watching the computer case yank around 125 degrees from 268.8W of reaction force every time I turn the computer on!

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  43. Computers are powerhogs by tsa · · Score: 4, Insightful

    I think it's time to make computers less power-hungry. I have a 1300 MHz Duron with an nVidia geForce 5700 and two harddisks. That thing uses 145 W when it's doing nothing, and that is without the monitor. I use less power to light all the rooms in my, admittedly small, house! Even my big wide-screen CRT TV doesn't use that much power when it's on. I can't believe we can't do better. With better, I mean make computers that use less power.

    --

    -- Cheers!

    1. Re:Computers are powerhogs by smoker2 · · Score: 1
      I have a 1300 MHz Duron with an nVidia geForce 5700 and two harddisks. That thing uses 145 W when it's doing nothing, and that is without the monitor.
      Swap out the PSU and CPU fan for new stuff. If you have any case fans, the same applies.

      After prolonged usage, they both accumulate dirt and crap which slows them down and heats them up, making them less efficient. I had a pc which was costing me a fortune, until I opened it up and found that one of the case fans had actually stopped turning due to the crap clogging it, thus turning it into a heater. Heat generation is expensive, both in terms of power draw and financially.

    2. Re:Computers are powerhogs by Kjella · · Score: 1

      I can't believe we can't do better. With better, I mean make computers that use less power.

      We can. They are all being rated for use in laptops on battery at a premium. Or since laptops are taking over for desktops, I should maybe put that the other way around. They can sell desktop chips for a bargain because it lacks the capabilities needed in a desktop.

      Also, while Moore's law and all is nice, power/watt hasn't increased nearly as much as raw power. We can throttle when idle, but running a game that maxes 100% CPU and GPU will kill a laptop fairly quickly.

      Quite frankly, I'm not concerned about the power bill. The reason I want low power is because high power = high cooling need = high noise. If my PC came standard with watercooling without excessive premiums I'd happily burn a few hundred watts more on CPU/GPU power.

      --
      Live today, because you never know what tomorrow brings
    3. Re:Computers are powerhogs by tsa · · Score: 1

      Swap out the PSU and CPU fan for new stuff. If you have any case fans, the same applies.

      I know that. The 145 W I use is with clean fans. I cleaned them before measuring, after I put the video card in.

      --

      -- Cheers!

    4. Re:Computers are powerhogs by AlXtreme · · Score: 1

      Tried using a laptop recently?

      --
      This sig is intentionally left blank
    5. Re:Computers are powerhogs by jrmcferren · · Score: 0

      Yes, and think how many people are going to call tech support over blown fuses when these power supplies get into the mainstream. If I start buliding custom systems as a business I would be using larger power supplies than the name brands to begin with, I don't want to be answering the above said blown fuse calls when 600-1000 watt power supplies become common usage in my PCs.

      --
      sudo mod me up
    6. Re:Computers are powerhogs by the_humeister · · Score: 1

      You can underclock the video card to get some energy savings. I have an FX5200 that I underclock to 50Mhz GPU/ 170MHz memory. Any less and my monitor will get a bad signal.

  44. *what* the fsck? by sl4shd0rk · · Score: 1

    Most people can get by with a 250 watt power supply these days. A hard drive takes around 25 watts to spin up but after that it cruises along pulling only 4 to 6. Check this out.. http://www.codinghorror.com/blog/archives/000353.h tml

    Find some other way to compensate for your lack of whatever instead of burning more energy just because it's "bigger-than-yours".

    --
    Join the Slashcott! Feb 10 thru Feb 17!
  45. Migrating Server Farms ? by oldCoder · · Score: 1
    Server Farms like those run by Google and Amazon will, now that things can be remotely operated, moved to cooler climes like Alaska and Yellowknife, Canada. They'll put the facility in the center of an office complex that has to be heated anyway and probably provide working-hours power for free. Maybe there's one with a mall attached to extend the working day.

    The result will be a new nexus of high-tech growth in the semi-polar regions. Server Farm Workers will migrate, but not as often as regular Farm Workers.

    The aluminum smelting industry is even more power-dense (they locate them next to hydro-electric dams) but is too polluting to be in a city center, of course.

    --

    I18N == Intergalacticization
  46. Rediculous by Anonymous Coward · · Score: 0

    We should be conserving energy - not wasting it on 1Kw of unnecessary power to light up your case etc. This is the American Dream - pointless overuse.

  47. Units, my friend by stomv · · Score: 1

    That'd be 1,210,000 of the 1kW units stacked on your DeLorean. Yeah, beowolf cluster and whatnot.

  48. Re:whooboy by Firethorn · · Score: 1

    Like what others have said, switching power supplies only draw what power they need, plus a certain amount for inefficiency. This might actually end up being more efficient than some cheap knockoff power supplies. Should last longer, as well.

    As for heating, the only way drawing that much power wouldn't hurt your bottom line is if you're heating by direct electric. Last I checked, gas and oil are still cheaper per therm. A heat pump system sorta breaks the 100% efficiency thing by bringing in heat from outside.

    --
    I don't read AC A human right
  49. I've got... by Gordonjcp · · Score: 1

    ... a 59mpg pickup that cost me £200. Bang goes your theory.

  50. Inefficient, compared to what? by Firethorn · · Score: 2, Informative

    The question is, compared to what? 75% efficient is great if the alternative is only 50%, which is what linear power supplies average. Linear supplies are simpler, but also bigger and heavier. The sheer mass of metal required can quickly make the simplicity moot, as the cost of the metal drives the price high.

    Driving the frequency even higher can increase efficiency, but I believe it increases engineering complexities and strain on the components.

    --
    I don't read AC A human right
  51. Not UL listed? by Firethorn · · Score: 1

    Now, I've seen a number of power supplies, for both personal and business use. I have NEVER seen one without a load of listings, including UL.

    Even the most nasty power supplies I've seen are UL listed. The sheer amount of liability one would assume selling non-UL equipment ensures this.

    Of course, I'll dispute with you on how important UL listing is for a review.
    1. Why list it if everything you review is UL listed?
    2. UL listing merely means that it's gone through testing to pretty much insure that if it fails it doesn't cause a serious safety hazard by doing things like electrifying it's case, blowing up, spewing glass shards everywhere, catching fire, etc. It's not a statement of quality or performance.

    --
    I don't read AC A human right
    1. Re:Not UL listed? by GigsVT · · Score: 1

      You'd be surprised. UL logo fraud is pretty common. I remember a report where it turned out like 5 out of 10 popular power supplies were using the UL logo in violation of the UL trademark terms (no UL listings).

      Another thing is that the UL doesn't really certify individual components. I.e. you can build a computer out of all UL parts and the whole is not considered to be UL approved.

      --
      I've had enough abrasive sigs. Kittens are cute and fuzzy.
    2. Re:Not UL listed? by blincoln · · Score: 1

      Even the most nasty power supplies I've seen are UL listed. The sheer amount of liability one would assume selling non-UL equipment ensures this.

      Back in the mid 90s, most of the ones I saw were UL listed. Now almost none are.

      I have a brand-new Coolermaster PSU sitting on my floor. It came with the replacement case I bought. It is not UL listed, and I thought "oh ho! I will use my old, expensive Enermax PSU, which *surely* is!" but actually it turns out that that one isn't either.

      UL listing merely means that it's gone through testing to pretty much insure that if it fails it doesn't cause a serious safety hazard by doing things like electrifying it's case, blowing up, spewing glass shards everywhere, catching fire, etc.

      That's pretty much the most important feature in an electrical device for me.

      --
      "...always new atoms but always doing the same dance, remembering what the dance was yesterday." -Richard Feynman
  52. What about Apple? by h0mer · · Score: 3, Interesting

    I'm surprised no one has mentioned that some of the newest dual-core Power Mac G5s run a 1 kW power supply STOCK. I thought it was insane when I first found out about it.

    --


    I'm on top of my game like I'm standin' on Xbox.
    1. Re:What about Apple? by Drgn547 · · Score: 1

      Which new Apples have the 1KW Power supplies? I have a 2 week old Quadcore Powermac G5, with 4GB ram, and it only has a 600watt...and that's the most energy intensive system they offer...so...did you get wrong information?

    2. Re:What about Apple? by v1 · · Score: 1

      I was just going to point out the kW ps's in the new quad core macs. Looks like the "Power Mac G5 (Late 2005)" models ship either with a 710W or 1kW supply. Probably the ones with the quad 2.5's are shipping with the 1kW, and the slower quads (2.0 and possibly 2.3) ship with the 710W. I know the 1kW monsters ship with an industrial power cord on them - it's not the standard 3 pin "D" connector cord you see on 99% of current computers, it's a rectangular block with three blades, and a much thicker cord.

      Funny I haven't seen any sort of warnings or advisements on the power draw on that cord - the 2.5QP can probably draw enough power to overheat some of the cheaper extension cords and power strips. (I have seen some that are only rated 7A, which would be about 840W) They must assume everyone that's using those is plugging directly into 15A service convenience outlets. (1800W)

      Now I'm curious - I think I'll take a watt meter into work on Tuesday and see how much juice a taxed 2.5QP draws from the wall. I'll need to push the graphics card as well as the CPUs for greatest draw - any suggestions on what app to run? Maybe UT 2004 with all the goodies on, on a nice 30" display?

      --
      I work for the Department of Redundancy Department.
    3. Re:What about Apple? by Anonymous Coward · · Score: 0

      As I stated in my previous posting, the 'best' configuration of the Power Mac G5 (Late 2005) (quad 2.5GHz G5's) comes with a 1KW power supply. This configuration is currently sold as marketing number M9592LL/A; such units have serial numbers that end with R6W.

      From the user's manual: This power supply can draw as much as 12 amps of 120 VAC current (6 A @ 240VAC).

  53. A full gallon by scharkalvin · · Score: 1

    In Ham radio terms that is a full gallon power supply.

    I suspect in most computers the top drive bay will have to be
    left empty due to the depth of the supply.

    Come on most computers will NEVER need this much power.
    However imagine a machine with 8 operion (series 800)
    dual core cpu's and 4gb of ram PER CPU. (does anybody
    yet make such a motherboard?). Mix in 8 400gb super scsi
    disk's and see what you get! (one of google's servers?)

  54. 1kW by gauntlet420 · · Score: 3, Informative

    I seem to remember the same arguments from a few months back:

    http://hardware.slashdot.org/article.pl?sid=05/08/ 22/2157244&tid=232&tid=126

    And, since IAAPSD (I am a power supply designer), the same observations are applicable:

    • - a 1 kW PSU and a 400W PSU will deliver equal amounts of power into a conventional system that only needs 250W - specifically, 250W
    • - most commercial-grade PSUs are unlikely to survive long-term at their maximum rated power - that is to say, that 300W power supply that you bought for $10 from your local PC junk discount store is not the best thing to power your dual-core uber-gaming rig
    • - most commercial-grade PSUs do have an efficiency sweet-spot because they do not use things like input power factor correction and are not engineered to exceed their requirements (i.e. ATX specifications) by even a fraction (to keep costs to a minimum)
    • - a high-power PSU running at light load can be expected to last much longer than a lower-rated PSU at the same load as the component stress levels are lower - that is to say, the components in the 1 kW PSU are stronger than those in a 400W PSU, and industry standards dictate compoment stress levels to not exceed 50-70% of maximum (depending on the type of part) to ensure long MTBF (mean time between failures)
    • - all power supplies fail eventually - if well-designed, the only things that will wear out are the electrolytic capacitors, which will eventually dry out (over a period of years) and cause the PSU to degrade and eventually quit
    1. Re:1kW by Bassman59 · · Score: 1

      Mod parent up Insightful, please.

  55. Finally... by jasongetsdown · · Score: 1

    ...The Hummer of power supplies.

    --
    useless sig advice - Read Nabokov.
    1. Re:Finally... by seanvaandering · · Score: 1

      ...The Hummer of power supplies.

      Exactly. Now I don't know about you, but IMHO, when I see a Hummer driving down the street, price tag aside, I don't go "Man, I really would want one of those!", rather I look at them in disgust, as a tremendous waste of metal and energy. Those things get what 7-9 MPG? Its laughable! Don't you find it funny that they don't even publish what the MPG is for that vehicle? Like someone mentioned before, I don't go around boasting my car gets 1 MPG. I'd feel more guilty about having something that is just so wasteful. Why do you think LED lights this Christmas are really taking off? People just want to feel good about what they purchase and knowing that they only consume 10% of the energy and last 10x as long as conventional lights, makes them popular. In 2-3 more years you wont see anything but...

  56. Wake me up by porkThreeWays · · Score: 1

    Pffft. Wake me up when you've got one that's 1.21 gigawatts. Then, and only then, can I power the flux capicator.

    --
    If an officer ever threatens to taze you, say you have a pacemaker.
  57. Does this mean I can build a case out of LEDs? by digitaldc · · Score: 1

    Because I live on the coast and my computer will have to act as a surfing tool and a lighthouse at the same time.

    --
    He who knows best knows how little he knows. - Thomas Jefferson
  58. question for you EE nerds... by jasen666 · · Score: 1

    Does a power supply necessarily use it's rated power output all the time, or is that just the rated maximum wattage output?
    For instance, if my hardware is only drawing a couple hundred w, but I install a 1kW supply, will it still use 1kW all the time?
    Because if it does not, I see no reason for people to not aim high when choosing a supply. It would give you a safety buffer in case power requirements spike for some reason, without stressing the power supply.

    1. Re:question for you EE nerds... by Slashcrap · · Score: 5, Funny

      Does a power supply necessarily use it's rated power output all the time, or is that just the rated maximum wattage output?

      Of course it does! That is why you must never, ever power up a PSU with nothing connected to it. If you did, that whole 1kW would have to be dissipated in the PSU leading to instant meltdown and you having to pick pieces of red hot metal out of your face.

      It's the same with power plants - if demand for power suddenly dropped far enough, every power plant in the country would explode with untapped potential.

      I think it was rather irresponsible of you to raise such a dangerous subject on Slashdot. Please report to your nearest DHS reception centre for re-conditioning.

    2. Re:question for you EE nerds... by Bassman59 · · Score: 0
      Original question: Does a power supply necessarily use it's rated power output all the time, or is that just the rated maximum wattage output?

      Slashcrap's Response: Of course it does! That is why you must never, ever power up a PSU with nothing connected to it. If you did, that whole 1kW would have to be dissipated in the PSU leading to instant meltdown and you having to pick pieces of red hot metal out of your face.

      CLEARLY you're not an EE. Your answer is simply WRONG.

      A power supply sources the current required by the load. If the load requires 100 mA, a supply capable of sourcing 10 A will still source only the needed 100 mA. It's worth noting that a "power supply" doesn't "supply power," as such. Rather, it's a DC voltage supply capable of sourcing a specified amount of current to a load.

      If you were trying to be sarcastic and/or facetious, you failed.

      Slashcrap again: It's the same with power plants - if demand for power suddenly dropped far enough, every power plant in the country would explode with untapped potential.

      Wrong again. As loads decrease, the generation stations reduce their output.

    3. Re:question for you EE nerds... by fishbowl · · Score: 1

      >CLEARLY you're not an EE. Your answer is simply WRONG.

      It was sarcasm, Mr. Trump, but it wasn't intelligent enough sarcasm to sufficiently contrast the original post.

      --
      -fb Everything not expressly forbidden is now mandatory.
    4. Re:question for you EE nerds... by Slashcrap · · Score: 1

      If you were trying to be sarcastic and/or facetious, you failed.

      Let me ask you a question - HOW MUCH MORE OBVIOUS COULD I POSSIBLY HAVE MADE IT?

      Do you completely lack a sense of humour, or for that matter even the most basic of social skills? I contend that you do and there's not a great deal of point in you arguing about it since you have already provided ample evidence.

      I think in basic terms, your problem is that you are physically unable to pass up an opportunity to try and show how clever and knowledgable you are. I have met many people like you and the thing that connects them all is a (usually well founded) lack of confidence in their own intellectual abilities. Hence the need to continually try and prove otherwise no matter how stupid, pompous and humourless it makes them look.

      And yes thanks, I am an EE and I also have some experience of switched mode power supply design. Feel free to ask questions when you've stopped foaming at the mouth.

    5. Re:question for you EE nerds... by Bassman59 · · Score: 1

      Oy! Such vitriol. As for "how much more obvious," well, your wit is soooooo dry that I just didn't get it. You win. Yours is the best kung fu.

    6. Re:question for you EE nerds... by Alsee · · Score: 2, Funny

      Let me ask you a question - HOW MUCH MORE OBVIOUS COULD I POSSIBLY HAVE MADE IT?
      Do you completely lack a sense of humour, or for that matter even the most basic of social skills?


      Dude, this is Slashdot. He probably has Asperger's.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  59. No kidding by HangingChad · · Score: 1
    but was not afraid to admit how much of an overkill it is for the enthusiast market.

    No kidding. That's enough power to run a refrigerator. That really is overkill. Though it wasn't that long ago that a 250 watt PS was overkill. So who knows.

    --
    That's our life, the big wheel of shit. - The Fat Man, Blue Tango Salvage
  60. Unnecessary for most people by airjrdn · · Score: 1

    Most people don't even need the 350-500W PSU's they purchase. I run this off of a 220W and have for about two and a half years now...

    AMS E-Cube EG65 - 220W Power Supply
    Intel 2.8Ghz P4
    HT800 CPU Fan
    1G Corsair XMS
    ATI Radeon 9700 Pro (128M)
    Creative Labs Audigy 2 ZS
    120G 8M 7200RPM HD
    200G 8M 7200RPM HD
    8X Dual Layer DVD+/-R/RW/CD/CDRW Burner
    USB Mouse
    USB Gamepad
    PS2 Keyboard
    120mm Blue LED Fan
    6" Blue Cathode Ray Tube

    1. Re:Unnecessary for most people by EnglishDude · · Score: 1

      Are you sure?

      Using this website - http://www.jscustompcs.com/power_supply/Power_Supp ly_Calculator.php?cmd=INTEL - it says your system needs a minimum of 302 watts peak - tho I had to make assumptions about 2 bits in your computer - I chose the Prescott 533 FSB processor and 2 sticks of DDR RAM. Of course, 302 watts is only peak - i.e. if you're really trashing your computer playing graphics heavy games. But even idle and using a 220w PSU? Hmm. Do you get random crashes?

      I've got a computer system with the following hardware:

      Slot 1 P3 666MHz 133MHz FSB processor
      1 x 256mb PC133 memory
      1 x PCI network card
      1 x Geforce MX4000 graphics card
      No hard drive
      No optical drive
      Floppy drive (only used at bootup)
      1 CPU fan

      And that's it. And the 240w PSU the above hardware is connected to can't cope! Put on a 350w Enermax PSU I had kicking around gathering dust and no problem. Tho I suspect the PSU is faulty, tho it coped with an Mini-ITX board, with 512mb DDR RAM, 3 fans, 200GB 7200rpm hard drive and 2 x DVB cards that was living in there before without any problems. Oh well, this power supply game is a most annoying one!

    2. Re:Unnecessary for most people by airjrdn · · Score: 1

      I'm pretty sure   Here are some tests I've done with a watt meter between my PC and the outlet:

      Wattage Measurements:
      =====================
      Idle                                                         120
      Playing MPG                                                  131
      Copy file on 1 physical drive                                131
      Copy file across 2 physical drives                           134           Peaked at 155
      Play Unreal Tournament 2004 demo & game                      185-190
      Burn CD                                                      130
      Burn CD & Play Unreal Tournament 2004 Demo                   195           Peaked at 205
      Doom3 Timedemo Demo1 640x480 Medium Quality                  190-200       Peaked at 210
      Doom3 Timedemo Demo1 1024x768 Ultra Quality                  210-215       Peaked at 222

    3. Re:Unnecessary for most people by airjrdn · · Score: 1

      Sorry, I didn't answer all of your post.

      I know people say this alot, but I honesly don't get any crashes. As for putting the machine through the ringers, I'm the head of an Unreal Tournament 2004 clan. We play about 2 to 3 hours per night, 7 nights a week. Over the Christmas holiday I was out of town for a week, but actually took my PC with me to game from the house we stayed at. Sad I know, but I'm a gamer! :)

      If you're curious, you can check out some pictures of my ECube here

    4. Re:Unnecessary for most people by EnglishDude · · Score: 1

      Impressive. Those figures sounds about right acutally - the 300w figure I got is just a "worse case" scenario. But I see your point. Your PSU must be good quality then - most PSU's overstate their real abilities - such as a cheap 500w PSU really can only do 300w. Oh well!

      Oh yeah. My comment about the system I'm using with a 240w PSU - I got an email back from the company, they said it's possible that the system isn't draining enough power from the PSU on the 12v rail so it shuts down. They suggested me to add in a hard drive to see if it works. Amazing, if that is correct.

    5. Re:Unnecessary for most people by airjrdn · · Score: 1

      That does sound strange. I've not heard anything like that in the past, but that doesn't mean it's not the case I guess.

      My PSU actually came with my Ecube from AMS Electronics. The case is originally from a company called Chyang Fun which I don't really know anything about before purchasing this case/mb/psu.

      I do have to say I've been very happy with this machine though. It's rock solid, small, fairly quiet, and looks nice. I'm just not sure what I'm going to upgrade to when I want support for SLI/AMD 64, and a couple of PCI slots in another small form factor pc. :)

  61. Spinal Tap Power Supply by argo747 · · Score: 1

    I would suspect Nigel would love this baby. "You see, most blokes will be playing at 10. You're on 10, all the way up, all the way up...Where can you go from there? Nowhere. What we do, is if we need that extra push over the cliff...Eleven."

    --
    Quis custodiet custodes ipsos?
  62. But how much power does your machine use? by Thaelon · · Score: 1

    What I want to know is: How much power my machine actually uses.

    Do I really need the 550W power supply I have?

    The only way I have to find out is to add up the requirements/usage that I have on paper for all of my devices. I wouldn't trust that number at all since I could have some poor run of devices that actually draws 50% more power on startup than it says it does and not know it.

    Is there any easy way to measure how much power a machine actually uses?

    --

    Question everything

    1. Re:But how much power does your machine use? by fishbowl · · Score: 1

      >What I want to know is: How much power my machine actually uses.

      You just need an inductive ammeter and you can measure it directly. Or you can observe the consumption in kw/h by watching your service meter.

      --
      -fb Everything not expressly forbidden is now mandatory.
    2. Re:But how much power does your machine use? by The+Master+Control+P · · Score: 1

      "Is there any easy way to measure how much power a machine actually uses?"

      Buy a Kill-a-watt from Thinkgeek.

    3. Re:But how much power does your machine use? by gauntlet420 · · Score: 1

      Looks like a useful gadget.

      You cannot use it to determine how much power the computer itself needs, because the device will show the total power drawn from the mains:

      • - the amount of power drawn from the PSU to power the computer, and
      • - the total losses of the power supply.

      Unless you know how efficient the PSU is at a given load, you cannot accurately gauge how much power is being used by the computer itself and how much is being converted into heat and electrical noise by the PSU itself.

  63. Re:Just a kw? Pshaw... wake me when... by ultranova · · Score: 1

    We get a 1.21 gigawatt power supply.

    That comes with its own nuclear reactor ! When you're not using 3D applications, you can feed the extra power back to grid for fun and profit ! You're going to need that profit for waste disposal...

    --

    Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

  64. What is it? by zogger · · Score: 1

    In the US I can think of only one like that with similar mileage, the old VW Rabbit diesel pickup. Pretty rare now, you don't see many of them.

    1. Re:What is it? by Kiryat+Malachi · · Score: 1

      Judging from the use of pounds and the 200 pound price tag, it probably *is* a Rabbit diesel pickup.

      --

      ---
      Mod me down, you fucking twits. Go ahead. I dare you.
      (I read with sigs off.)
    2. Re:What is it? by Gordonjcp · · Score: 1

      It's called a VW Caddy in the UK, but yeah, that's the one. Actually I don't have it any more, but I'm in the market for another one. Oh, did I mention you can run them on vegetable oil?

      Even lighter on fuel is the old Citroën AX I used to run about in (it belonged to a friend of mine, I used it when he was using my CX to pull trailers). That got about 85mpg, dropping to 60mpg at 90mph on the motorway.

    3. Re:What is it? by zogger · · Score: 1

      way cool! I almost bought one a few years ago, it was sitting on a lot for 1200$, and I had the cash on me. Hemmed and hawed, went home. Few days later I decided to go back, by then the guy had decided to keep it and already had the side doors painted for his car lot, he was going to use it as a parts runner vehicle.

      Another real good one, less mileage but lots more "truck" was the early 70's datsun diesel half ton. I think it got close to 40 MPG though but would haul a lot for a small truck. Girl friend I had a while back had one, I used it a lot, tough as nails, easy fuel sippin'.

    4. Re:What is it? by Gordonjcp · · Score: 1

      Well, the CX I refer to there was a 2.5 turbodiesel. It got about 45mpg driven gently, 35mpg driven hard. Hooking up a trailer and towing heavy stuff could get the fuel consumption down to below 30mph - worst was a steady 24mpg while pulling a Ford F150 with a couple of spare engines on the pickup bed. Best towing experience was when I *forgot* I had a Saab 9000 on a trailer, and wondered why the car seemed sluggish and the brakes weren't great at hauling up from 95mph...

  65. Case modding by hey! · · Score: 1

    Juxtapose the terms "Geek" and "Fashion Statement". Tells you all you need to know, really.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    1. Re:Case modding by Ohreally_factor · · Score: 1

      What the hell is FashGion eStateementk supposed to mean?

      --
      It's not offtopic, dumbass. It's orthogonal.
  66. I'm not impressed -- we need 100 kW by bradbury · · Score: 1

    As anyone who has read Nanosystems would know, 1kW is nothing. To power Drexler's 1 cm^3 nanocomputer we need at least 100 kW (Nanosystems, pg 370). Now, that is just the waste heat coming out of a nanocomputer -- one would presume one has to have more power going into it. So show me a power supply with 100+ kW up front -- then I'll be impressed.

  67. I'll Pass, It's For The DRM by camperslo · · Score: 1

    Looks like that's enough power to run the laser that'll go through your skull and erase all memories of that movie you just watched. Sorry, no organic backups permitted...

  68. Wasted Parts by Plocmstart · · Score: 1

    Who is really going to use 1kW of power in their system? What I'd rather see is a mainstream affordable redundant power supply. I just finished building a new low-cost file server and I'd love to have a redundant power supply that isn't overpriced just beause it's industrial. Oh well something to add to my list of things to build when I'm not busy....

  69. 1 kilowatt ought to be enough for anybody. by Saberwind · · Score: 1


    Seriously, it's only a matter of time before a CPU manufacturer releases a super-hot chip that will dissipate that much power as heat.

    We could probably create a variation on Moore's law that would predict heat dissipation of CPUs.

  70. The Next Geek Thing by Nom+du+Keyboard · · Score: 1
    Obviously the next geek thing is having your own private circuit wrired from your breaker box directly to your work station. You clearly don't want this box sharing the plug with anything else.

    And I didn't even see them mention the UPS that you'll need to ensure this stays up long enough for a proper shutdown.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  71. Watts. by Scareduck · · Score: 1

    W-a-t-t-s. It's even in the story summary. Goddamn it, there are some spelling errors that bug even me, and I tend to be pretty mellow about such stuff these days.

    --

    Dog is my co-pilot.

  72. 1kw is nice, but... by kjdames · · Score: 1

    1.21 jigawatts? 1.21 jigawatts? Great Scott!

    --

    Typos... that's just how I role.

  73. nothing new by beast6228 · · Score: 1

    1 kw powersupplies have been around for a long time, just not for joe schmoes home computer. People that don't know anything about electronics are bound to have humongous hardons over this news.

    Show me a 200 ampere power supply that will fit into an ATX case and I will truly be impressed.

    Wattage is futile, Amperage is impressive!

    --
    ~Later~
    1. Re:nothing new by Bassman59 · · Score: 1

      I didn't bother to read the specs for this supply, but I assume that it'll require a dedicated 15 A mains circuit. No power strips, please!

  74. You need to worry about minimum loads... by Deton8 · · Score: 1

    I haven't seen anyone else mention it, but for most switcher supplies sold to the PC market, you have to pay attention to the minimum loads as well. Typically, these are specified at 10% to 20% of the maximum continuous load. So, don't buy that 1000W PSU unless you are going to be using 100 to 200 watts at all times. If you drop below the minimum load, the regulation goes to hell and you could get unreliable operation. Sometimes, the design requires a mix of minimum loads on the different outputs; other designs have one primary output that needs the minimum loading.

    More expensive designs have preload resistors or other design features which eliminate the minimum load requirement, but I don't think that's what we are talking about here.

    There's also something odd about rating a PSU at 1100W peak and 1000W continuous. Based on the types of components that are likely to be in the system, if you keep below the 1100W peak value, it's unlikely that your continuous draw will be more than about 700W, possibly less if you have lots of hard drives.

    Bottom line -- bigger is not always better.

  75. Inverted thinking by macemoneta · · Score: 2, Insightful

    A 1KW power supply is not king, it's the worst possible example of waste and the most ineligant solution.

    A computer system that can perform at currently accepted levels and needs less power is king. Show me an AMD64-class CPU running at 3GHz with a terabyte of storage operating at 100W or less and I'll be impressed. It takes no magic to throw more hardware/power at a design - that's just brute force.

    --

    Can You Say Linux? I Knew That You Could.

  76. Re:Pfffft (ot) by cgenman · · Score: 1

    All energy turns to heat in the end.

    No, all energy turns into a superdense, supermassive black hole where the concept of molecular movement is not just wrong, it is no longer applicable.

    All energy becomes gravity in the end. That is just one of many ways this PSU makes its users heavier.

  77. better for the silent computing scene by aquabat · · Score: 1

    It occurs to me that this 1kW power supply that runs cool enough to be put in an average computer enclosure. I hope this implies that a 500W power supply based on the same component technology will run even cooler. This raises the possibility of passive cooling, which is good if you don't like to hear your computer's fans spinning.

    --
    A republic cannot succeed till it contains a certain body of men imbued with the principles of justice and honour.
  78. We can, and already do make lower powered machines by unicorn · · Score: 1

    The problem is that nobody wants them.

    There are all sorts of low powered options out there. But you can't play Quake on them, and they don't run Windows. So they aren't sold into markets (home users) where nobody will buy them.

    The staggering computational power of a modern machine goes hand in hand with the staggering amounts of power they are consuming now.

    --
    "Politicians are interested in people. Not that this is always a virtue. Fleas are interested in dogs." P.J. O'Rourke
  79. Yottawatt by Frank+T.+Lofaro+Jr. · · Score: 1

    When can I have a yottawatt power supply?

    --
    Just because it CAN be done, doesn't mean it should!
    1. Re:Yottawatt by Technician · · Score: 1

      When can I have a yottawatt power supply?

      When you move to the bright side of Mecury.

      --
      The truth shall set you free!
  80. I could see using it by Sycraft-fu · · Score: 1

    Big servers can start to draw power in that realm. If I were to build a bigass Opteron multi-processor, multi-core Opteron server, I might look at using these. I've always been of the opinion that you should overspec on power supply to make sure you don't overload anything. Your system needs 200 wats, get a 300 or 350 watt, and so on. Also leaves room for expansion. So if I've got a system loaded full of high end processors, RAM and disks and it's drawing like 600 watts, I don't think it would be unreasonable to have 1kw backing it up.

    I'm not saying there's much use for it, and I'm sure most people buying it will be the "l33t 0v4cl0ck4" types that don't need it, but there ARE reasons to want that much power. Hell, there are Sun servers out there with power supplies that don't connect to 20 amp sockets, they need something bigger. Limited use yes, but they are real.

  81. Fast harddrives by Sycraft-fu · · Score: 1

    Those draw more power than you might think. Maybe not normal, but peak. I remember back in 2000 my roomate had a server at work that had multiple high speed SCSI drives, 15k I think but maybe just 10k. At any rate there was a problem with them, the BIOS on the drives (yes the drives had BIOS, supprised me too) wasn't compatible with the RAID controller they had, needed to update them. So he brought them home and we were going to use my system since a had a little SCSI card for my burner. It was slow, but supported and would let us load the BIOS.

    However, upon putting the drive in my system, it wouldn't power on. It would turn on, then off again. I wasn't sure what was happening. My roomate guessed, correctly, that the load was too mych for my PSU. It was somethig like a 200watt PSU, maybe 250. Fine for my little P2 and couple of drives, not enough for this. We ended up having his computer, stripped down, next to mine providing power for the drive with mine doing the BIOS update to make it work.

    Now, imagine a system with 15 of these drives in it. Or with 45 (there are RAID controllers that support that many). Now further suppose you want it all on one PSU so that your PSUs are fully redundant.

    Not saying you are going to see this every day, but there are some real high-drain uses out there.

  82. How about parallel? by mnmn · · Score: 1

    What about running two 500W supplies in parallel?

    For less money I could run 3 500W power supplies in parallel and be redundant!

    --
    "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
  83. This Power Supply brough to you courtesy of KBR! by Philip+K+Dickhead · · Score: 1

    Kellog Brown and Root. A tiny, insignificant subsidiary of Halliburton.

    --
    "Speaking the Truth in times of universal deceit is a revolutionary act." -- George Orwell
  84. I was expecting this: by Ars+Dilbert · · Score: 1

    I read the topic title, then immediately went to Edit > Find > 1.21 > Find Next, and there it was.

  85. SO WE ARE GO BACK TO VAX ? by Anonymous Coward · · Score: 0

    SO WE ARE GO BACK TO VAX ?

    When we will be using 3-phase power in our's pc ?

  86. Fire Extinguisher? by Ohreally_factor · · Score: 1

    Why would he need a fire extinguisher?

    --
    It's not offtopic, dumbass. It's orthogonal.
  87. All your huge powersupplies... by tatersalad · · Score: 1

    It's great to have a 1600 watt or 4000 watt or w/e powersupply, but will it fit into an average gamer's ATX form factor case? probably not. This Megawatt one will. up to now we havent had that kind of power accesable for the ATX form factor market.