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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.'"
> 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
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.
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
> 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
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.
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.
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.
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?
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/
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.
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.
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.
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.
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!
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!
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.