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P4 2.80GHz Overclocked to 3.917GHz
vwbus writes "The guys at Muropaketti have taken a brand new Pentium 4 2.80GHz chip, bought a pint or so of liquid nitrogen and overclocked it to an astounding 3.917GHz. The Finns describe how they put together the system on their web page, and luckily there are a whole set of pictures which demonstrate exactly what they've done, so you don't need to understand Finnish to figure it out. The pictures show wisps of nitrogen evaporating from the jar sitting on top of the CPU, and they publish some SiSoft figures to demonstrate the kind of speeds they attained."
The folks at Muropaketti have had a lot of practice with this cooling method.
Why not just keep the processor outside :-)
Not for long!!!
Why are other peoples sig's always more witty ???
so yeah, where can I JUST PICK UP a pint of liquid nitrogen...
i can't wait for LIQUID NITROGEN cooling in my laptop...although i have a feeling the thermal stresses would make it want to disintegrate.
so much for the 3 GHZ barrier thats about to get broken...someone wake me up when we hit 100?
styrofoam and duct tape! looks like a hack at its finest...although i'd hate to have to keep refilling the liquid nitrogen.
so much for long term cooling...but its interesting as a proof of concept.
god damn COOL factor...but i guess thats what slashdot is.
Don't try this at home. If you feel tempted, watch three times in a row "Terminator 2", and remember you are not made of liquid quicksilver, or whatever.
Rome taught me patience and assiduous application to detail. Virtues which temper the boldness of great, general views.
An 8086 to 6mhz .net 4.4 Sp 490 with DRM and Copy protection special edition) to 1 Thz (Terraherz)
An 8088 to 9mhz
An 80286 to 25 mhz
An 80386 to 60 mhz
An 80486 to 100 mhz
A Pentium 1 to 200 mhz
A Pentium 2 to 700 mhz
A Pentium 3 to 1800 mhz
A Pentuim 4 to 3917 mhz
A Itainum4 (with CBTIA and Paddilum
That's incredible--however they're using Windows, so I bet MS Office still takes hours to load ;)
Oh give me a board, that I can afford ;)
That can OC a P4 no prob.
Where liquid N 2, cools that hot CPU
And keeps you from doing your job
Oh they took a 2-8, to almost 4-G that's great,
Bun can this new speed get me laid?
The answer of course, one that I don't endorse,
is visit this link everyday!
Slashdot: Where people pretend to be twice as smart as they really are by behaving like children.
person 1: "I just got this brand new P4 2.8GHz CPU. What should I do with it?"
person 2: "Get a Radeon 9700 and get on top of the 3Dmark2001 benchmark list at Mad Onion?"
person 1: "Radeon hasn't come in yet..."
person 2: "Compile some software?"
person 1: "Already did that."
person 2: "Create a new anthropomorphic CGI character with a Jamaican accent?"
person 1: "Tried it, but for some reason the CGI software refuses to let me. Something about digital rights management and George Lucas."
person 2: "Rip some DVDs to DIVX?"
person 1: "Already did that. I think it's what pissed off George Lucas."
person 2: "Ah hell, lets just dump some liquid nitrogen on it and overclock it. It'll be like the Fast and The Furious if it blows up."
person 1: "Duuuuude! Great idea!"
At this point they are only extreme cooling the CPU. Some of the "coolness" will also cool the MB a bit.
At what point will it be "necessary" to dip the total package of MB, memory, GPU and CPU in the nitrogen?
I mean, you would want to increase FSB and memory timings as well if you want to get half-decent Quake3 fps's scores.
Why are other peoples sig's always more witty ???
This Slashdot article is a blatant rip off from The Inquirer
Frostbite!
---
Siggy, siggy, siggy, can't you see? Sometimes your puns just irritate me.
I want nitrogen evaporating from my pc too!
It's too cool!
I seen overclocking for the first time through the live feed of Assembly TV. I think it was an XP processor or something but I am not into hardware enough to care. I had to ask why they were pouring Liquid Nitrogen into a cup as it was shown but quickly found out I was watching 'Liquid Nitrogen (DONT try this at home!!!) OverClocking'. Crazy Finns!
Pixels keep you awake!
Wow, imagine what a Beowolf cluster of these could do.
--
Random GeoCities Link: X
What would be the next step to more extreme cooling???
Like putting a vaccuum cleaner over the nitrogen to lower the surface pressure.
Any other gas around that's even cooler?
(imagine a beowolf cluster of these. (it had to be said!))
Why are other peoples sig's always more witty ???
It looks cool. Yeah, that CPU will last about a day. Thermal stresses will destroy that cpu very shortly. Also, the P4's have huge #s of pipeline-stages that result in LOWER cycle efficiency that older models and comparable AMD chips. Wintel has the folks suckered into thinking higher GHz == faster. Nyet! Sun's chips exec instrs alot more efficiently that intel's; the exact numbers escape me, but i remember 250 MHz Ultrasparcs being hella fast.
BTW, does this mean 1000 fps in Quake3?
The biggest trick the devil pulled was letting lawyers become politicians so they can write the laws.
Congratulations! You are the first person to post the text of the article! Weclome to your free karma points! Good job also on disquising your whoreing with a witty comment.
Oh wait... but by the way, I do believe that probably 95%+ of the slashdot crowd doesn't read Finnish and are going to just look at the pretty pictures, just like the posting suggested.
[news for me, stuff that doesn't matter]
...I don't even need liquid nitrogen to overclock my CPU.
I just give it The Fonzie and it runs like hellfire.
...what these guys could do with an old 386...
This idea was invented by Shampoo.
I mean , its not like boosting the horsepower of a car and having a blast burning up some guy at the lights. Yeah , so your computer runs faster, what you gonna do , get your mates around and give them a demo of how fast the linux kernel compiles now? Gimme a break. Overclockers are really sad dudes who need to get out more.
Yeh, sure..
post the original finish article, that will help.
Why are other peoples sig's always more witty ???
What's up with that? Does anybody overclock graphics chips? I don't remember having seen anything on the subject.
Do my eyes deceive me? I doubt it. WCPUID is noting 3998.24 MHz in that picture! (It's most of the way down the page, if you want to see it in context.)
Wow.
"...America's great minds of today, teaching America's great minds of tomorrow. Poor bastards." -- A Beautiful Min
The pictures show wisps of nitrogen evaporating from the jar sitting on top of the CPU
You can't see the evaporating nitrogen. The wisps are droplets of water condensed from water vapor in the air by the low temperature.
Stop worrying about the risks of nuclear power and start worrying about the risks of not using nuclear power.
It really surprises me what some guys do... I mean what is the practical advantage of this? Just to proove what exactly?
Now, if they were to use the same system to get instant cold beer.. now that's something we can all use, but to work with a freezer on your desk....
Go with the feeling, you're not the first post.
Notices in the CupID screenshots that the Multiplier is 21x.
Notices that in the Sandra screen shot the FSB is 4x145 Mhz (580).
Does mental arithmetic - 145x21=3045MHz.
Which is rather a lot less than they were claiming. I suspect a few of these picture may have had a close encounter with Photochop.
1972: Typist's Elbow
1982: Space Invaders Wrist
1992: Carpal Tunnel Syndrome
2002: Your entire hand shatters after being frozen in liquid nitrogen.
If you've seen this article before: yes, I know. Some people haven't. This is for them. Thanks.
(this is not a
Now our processors are FOUR times the speed of yours!
(Yeah, yeah. I know that MHz != performance, but still...)
Imagine a beowulf cluster of those!
If one looks at this picture at the same site you will see an even faster P4: 4029.78 MHz. However that one didn't run the piFast benchmark as fast.
http://www.muropaketti.com/artikkelit/cpu/nw2800/l n2_5.jpg
keanmarine.com
Pouring liquid nitrogen from a cryocanister without gloves on into an open container without a funnel. Really, really smart! I'm guessing these boys wouldn't know an MSDS if it hit them over the head.
Also, I'm curious as to why they thought they needed liquid nitrogen? It's probably a little over-the-top....anyone with college level organic chem can come up with a whole list of mixtures that reach precise, predictable temperatures....they could have worked out what level of thermal conductivity was required and then chosen a cooling agent.
-psyco
Ok, I suppose i'll need a few onces of lead or other heavy and dense material to keep it on the ground. I wouldn't like to have my P4 blablah Hz flying around over my head without an adequate ballast.
Apple iProduct. Non importa cosa sia, lo comprerete!
But... as soon as you feel reasonably warm, the P4's clocks will drop automatically.
Yes. Most everybody, I thought...
There are tweaker apps for that, e.g. RivaTuner for Nvidia chips (if you don't want to edit registry to enable the clock speed sliders in the driver interface, the "CoolBits" tweak), or PowerStrip for most all cards.
I've seen pics of self-built watercooling systems for GeForce cards, one square waterblock for the GPU and one longish L-shaped for the memory chips. (Google it up if you're interested.)
sorry to be a picker of the nits, but they bought 10 liters of liquid nitrogen -- not a few pints. i think this is important since most slashdotters don't actually read the article....
If you want the CPU to work at a reasonably high temperature (like 0C or -20C), then LHe are no better than LN2. I guess LHe's heat capacity is quite low.
I don't see any "AMD Approved" sticker.
Ali
[Apoligies, but someone was gonna say it sooner or later!]
Ph33r m3!!!
That you can check your email wicked fast with that baby!
Seriously.. This whole speed thing is becoming quite the moot point now. How much power does a fella need? I'm still sitting behind a 600mhz machine and don't feel the need to upgrade at all. I would even go as far as calling myself a power user (Running intense applications such as Photoshop, doing video editing, etc). Sure, may have to wait a bit for super intense things, but the FEEL of the machine pretty much remains good enough.
Giving it some thought though, it's just a "bigger dick" war. Like guys that get all up an arms over how much horsepower their camaro has or something.
"The Wright brothers were the first to fly with a heavier-than-air machine, but boy did they have a lousy plane"
It's strange seeing a processor run at sub zero. I'm used to popping popcorn inside my Athlon's case whenever I wanna watch a movie.
/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i
Actually you can dip your fingers/hand in LN2 without hurting yourself. I used to do it every time to amuse/bemuse visitors who came to our laboratory. Just make sure you're not wearing a ring or other jewellery.
The owls are not what they seem
Thank god, in linux/arch/i386/time.c an unsigned long is used to measure KHz's.
where could one attain some liquid nitrogen?
quite the opposite, you can just up the internal clock speed of the gpu, but you can't (usually nowadays, if not having unlocked cpu) up the clock speed of x86 without upping anything else.
actually it's even easier to oc gfx card than setting some jumpers, just get some 'tweaker' program, this has been done for ~7 years? (voodoo1 has a dos environment setting that you can use to change clock speed, and for my old s3 i found a similar program too)
nowadays even more hardcore overclocking is happening on gfx cards with hacks to change gpu and memory voltages.
r8500 ln2 cooled: http://www.kamu2.net/radeon.html
world was created 5 seconds before this post as it is.
Do not eat the brown acid!
I would think that this is best done in a well ventilated area.
;-)
A relatively small jar of liquid N2 evaporated and warmed up to room temperature in a short time can replace many liters of air by pure N2. Trying to breathe the stuff won't cause a drowning or suffocating feeling or even a smell, as the air we breathe normally contains 70% of it.
The first symptoms of suffocation by lack of O2 in the air (rather than lack of air) are some kind of euphoric feeling and wooziness, so you wouldn't necessarily start thinking of finding a way to reduce the effect.
I bet that euphoric feeling is just what they experienced when they saw it working
See this this link for full instructions and pictures.
Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
Their server seems to be withstanding the slashdot effect quite nicely...
Project E.U.N.U.C.H - The "Extreme Use of Nearly Universal Cooling Hardware" ;).
Wow. I'm impressed. Talk about your home brewed....
Since nitrogen is such a good insulator, you can dunk your hand into a bucket of liquid nitrogen for a second or two, and as long as you make sure you don't touch the sides, you will be just fine.
As it flash evaporates from the heat of your hand, it forms a protective layer that slows the heat loss quite a bit.
I did it back when I was in high school, and visiting a collage physics lab. It feels strange, like a cold wind blasting your hand.
"If A equals success, then the formua is A=X+Y+Z. X is work. Y is play. Z is keep your mouth shut" - A Einstein.
I had a professor who told us of a practical joke he'd do every few years. He was fond of explosions and other cool things liquid oxygen and nitrogen being no exception.
Appearently he used to fill on of the fingers in a latex glove with hamburger, then put his hands in the glove. Careful to conceal his deception, he would stick stick his false finger into a some liquid nitrogen, while telling the class about how if one just left a finger in there it would shatter if struck. He then proceeded to demonstrate this by smashing the false and frozen finger with a hammer.
The way he tells the story, he was forced to discontinue this irregular practice when a bit of frozen hamburger hit a girl in the front row, causing her to faint.
And a styrofoam cup with a piece of what appears to be copper pipe, held together with duct tape and dreams, while it might be cool, doesn't rise to what I would consider "gear".
--Jimmy has fancy plans; and pants to match.
How many roving black-outs do we need to start thinking about energy conversation. It's great for your wallet by the way. Instead of eating up say 100 kilowatt hours a month, the system only used 5 kilowatt hours you'd save money. Businesses would save even more money when you take into consideration everything else it affects. Sure IBM is working on it, but it about time every CPU manufacturer start getting serious about reducing power consumption.
Now it can wait on the hard drive faster.
If you aren't part of the solution, there is good money to be made prolonging the problem
Can you imagine a beowulf cluster of these?
But really, what a waste of electricity, heat, and what a noise pollution. I'm waiting for desktop CPUs with SpeedStep which clock down to 100 MHz when you're doing vi editing and go up to 2.8 GHz, turning on all fans, when you compile software or transcode video streams.
I hope there will be enough consumer demand for such CPUs, pushing AMD/Intel towards saner technology.
gopher://cramer.plaintext.cc http://cramer.plaintext.cc:70
Do you use a glove everytime you "play" with boiling water?
We have some nice traditions here at the Technical Univeristy of Denmark. We have a yearly Christmas Lunch for all the students within my area, where some of the 1. year students make icecream as fast as possible. About 4 teams with 4 team members. One to mix incredients, one to hold the bowl (he has a glove, since it has to go fast), one to use the electric mixer, and one to pour the nitrogen. Its great fun. It takes about half a minute to make great vanilla icecream. It's the dessert of the lunch. Then the remains of the nitrogen is used to cool beer in plastic cups. Thats great fun also, and nobody has ever gotten (seriously) hurt, even though the average person might be a little drunk at the time.
Anyway, it is not that dangerous. You can easily stick a finger in it, or have some in your hand. It is because of the Lighten-Frost effect (As I recall). Your skin evaporates some of the nitrogen, which then acts as an excellent insulater between you and the very cold stuff. This also works for very warm stuff. Liquid lead at 600 degrees (Celcius of course) for example.
Kristian
He, who dies with the most toys, wins
if you want to win, go with the finn
is not ten liters. Ten liters is ~20 pints.
You work for Nasa?
There's a little thing called branch prediction, speculation, and in some architectures (like EPIC) taking multiple branches at once and throwing away the results you don't want.
MHz per MHz, Itanium2 is the fastest processor out there (check the numbers for yourself at http://www.spec.org/). Sparc's are veeeery slow - most people don't buy sparcs for raw computational speed. And yes, I work with sun boxes every day.
Maybe a dumb question.
But is it posible the cristal generating the Mhz's is also getting very cold, and therefore getting slower.
Maybe the BIOS thinks it is running at 4000 Mhz (simple multiplication), but in reality somewhat slower!!!
Doesn't refute the fact the scores are quite good. But at what actual frequency ??
Why are other peoples sig's always more witty ???
...Cool...
Really, who does? It's not like games are going to increase in speed by 50%.
(oh yes, this is obviosly a troll, because it goes against the article)
These stories are slashdot's equivalent of the "grow three inches" spam. Its done everytime a new chip is released.
Fuck goths!
Long live rock'n'roll!
Hey Mod him down if you want, but I think its hilarious. No one else thought to post the article in complete Finish. If he wanted to Karma whore he owuld have posted it translated or something. If I ever got mod point again, he'd get my vote for +1 Funny.
We all know that the P4's have a reduced instruction set inorder to achieve the high clock rate (compared to an Athlon).... so does this mean that we now have processors that are over clocked to which spin in circles and do nothing at an even faster now??? w00t!!!
HallmarkOrnaments.Com
Bah... I overclocked mine to 7800 mhz yesterday with some dry ice and a paint can.
As recent tech news reports have printed across the globe, an anonymous donor recently contributed $200,000 to "The Xbox Linux Project," a contest which challenges computer-savy programmers to port the Linux operating system to Microsoft's Xbox console. Drooling braindead Slashdot fans immediately adjusted their eyewear and began tinkering on the monumental task to do the unthinkable: install a rival operating system on Microsoft's own proprietary machine. However, most Linux users have experienced the same result in their Xbox project as they have with attempting to talk to any members of the opposite sex: utter and complete failure.
What a bunch of idiots....
"why the fuck Mozilla takes so long to start on my Windows ME box?"
Maybe it's protesting because you haven't got a liquid nitrogen-cooled P4 in your machine.
Maran
It take for CmmdrTaco to put up the same Posting??
lol
http://www.octools.com/index.cgi?caller=articles/s ubmersion/submersion.html
Lasers Controlled Games!
He posted it AC, you dumb cunt. Karma doesn't help AC. Fuck you're stupid. The fact that I have to explain the most base facets of slashdot is quite telling of your stupidity.
enough said
Until Intel fixes their cripled core, I ain't interested.
What a nut filling a cup with liquid nitrogen and not using gloves.
this guy needs to be in it
Technoli
Where the hell did you all got an idea that handling liquid nitrogen is SOOO dangerous that you just have to wear gloves? Please tell me what kind of gloves will protect you when they're saturated with a -196'C liquid?
I guess P4s really DO make the Internet go faster!
Screw the liquid nitrogen....... you need NAWZ!!!
Up the boost..... add a huge front mount intercooler, type R badging, oops.... wrong forum.
That's like the funniest hardware article I ever read at: http://totl.net/Eunuch/
Project EUNUCH stands for the Extreme Use of Nearly Universal Cooling Hardware -- check out this page!
I know where you can get Liquid Nitrogen, it's incredibly easy to do. But a word of note to those who may want to keep their electronic systems working longer then the test time.
Unless you live in the sahara desert or another place that has incredibly low humidity. This is incredibly dangerous to the motherboard. Those whisps that you see coming from the Liquid Nitrogen is not Nitrogen vapor. It is water!! Nitrogen vapor is not visible. The fact of the matter is, that the air around us has a lot of water in it, and when you start to cool it suddenly to -160 and below, you create a lot of water vapor. Now doing this with a computer will likely leave a nice little pool of water on the motherboard when you are finished. So unless you are willing to take that risk. I do not recommend doing this.
There is even a pic there where it should the frozen water buildup on the outside of the containing device they built. Can you imagine what the motherboard would've looked like after a while of this?
Having working with Liquid Nitrogen, and knowing how dangerous it can be even without electronics. I don't recommend this as a friendly try with buddies experiment.
~ kjrose
The Americans are the only ones still using such a backwards system such as Farenheit. Britian switched to Celsius in the 60's and 70's.
Work like an Athlon?
Minus 160 is near the functional limits for 'high temperature' superconductors so it would seem that if you have a stable technology for maintaining that level of cool you could use a completely different compute technology altogether and not worry about slow hot silly old silicon at all.
...its quite amusing that this highly overclocked
and cooled PIV is only twice as fast as a 1.5GHz
AMD Athlon processor 8-)
One thing I noticed was that they weren't working with gloves. From my experience working with LN in the lab is that getting even tiny drops on your hands is like getting splattered with hot cooking oil and to get a good splash from it I'd expect would create a flash frostbite burn.
As for the condensation issue I wonder if it would be worthwhile to make a dewer vessel chassis for the motherboard with the ports/power supply connector the only (sealed) connections to the outside. Put the board in, connect the ports, bolt it shut (with a low temp gasket seal), then fill it with LN. Problem here would be having to constantly vent the gas boiled off by the heat of the board and having to always add more. Sudden thermal contraction might also crack circuit board traces or even ICs.
It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
WHat EXACTLY did the DOOM3 README say about minimum hardware requirements?!
1. a working knowledge of Finnish
2. jar of liquid nitrogen
3. house located somewhere in frozen European continent or Alaskan tundra
4. ???
WARNING: Smartphones have side effects--most of them undocumented.
I thought I typed slashdot.org into my browser, not hardocp.com.
1985: Nintendo Thumb
Geeks of the world unite! It may already be too late to stop our enslavement, but it will fall to us to overthrow our Martian overlords in the due course of history.
Legumes, must plant more legumes...
That's exactly right - I worked with liquid nitrogen all the time freezing cell lines when I was a graduate student in immunology. It stings if you get a drop on your skin, but it would take much longer contact with a significant quantity to cause significant injury.
CO2 goes directly from solid phase ("dry ice") to gas at atmospheric pressures. The other AC post makes a crack at this as a "sublime" experience, because the process is called sublimation.
If you want really cold you need to find that place in Siberia where they have down to -57C.
This was posted months and months ago on HardOcp and several other sites. This isn't News at all. Oh well flame me if you will.
Use an ARM chip, I think the StrongARM 208MHz runs at something like 30mW, as opposed to the several W a lower power Intel runs at. Pick up an old RiscPC and install ARM Linux on it. Not only is it lighteningly quick but it runs cool so doesn't need a fan (saving even more electricity, and the no noise an extra bonus).
Phillip.
Property for sale in Nice, France
I did a quick translation from Finnish of the Muropaketti article:
There are probably more than enough articles about the Intel Pentium 4 2.8 GHz, so standing out from the crowd with some LN2 overclocking tests is a good thing.
For the tests, we ordered 10 litres of liquid nitrogen from Porin Hitsauslaite Oy and Messer (well known for [his|its] good service) supplied a 20 litre tank at the same price.
As a test bed, an Asus P4T533-C with an i850E chipset (which had been found to be satisfactory) was used. Samsung PC800 RDRAM modules were used for memory. The motherboard had TurboPLL, Vcore and Vmem modifications, which are better documented here.
This was the first LN2 test with this processor, so we started off by trying to get a feel for how the CPU behaves at low temperatures and what sort of results to expect in the future. For this reason a PNY GeForce 4 MX 440 display adapter was used, which has been found to tolerate very high bus speeds. Later, we'll do some ATI Radeon 9700 Pro tests and try for a new 3DMark2001 record.
Below a series of pictures describing the events and some general pictures of the [assembly|system].
[lots of pictures]
The tests didn't start easy, even though the system did agree to start Windows XP at 3913MHz. The Pifast test didn't complete at all. After testing for a hour we started to get a grip on the situation. The CPU didn't tolerate really low temperatures. The tests started running noticeably better, when the bowl wasn't frozen solid.
[more pictures]
At the end of the first day of testing, I managed to run the Pifast test at 3917 MHz and reach a new record of 24.17 seconds.
Finally, I managed to complete the Superpi test at 3998 MHz at 39 seconds, which is the current record on the Superpi ranking list maintained by [the|some] Japanese.
I also ran the SiSoft Sandra CPU and Memory benchmark tests at 3920MHz (21 x 186MHz). The results speak for themselves.
Sandra's CPU tests says the bus speed is 145 MHz, because a TurboPLL coupling was used on the motherboard. A 18.43 MHz crystal was used, from which the correct bus speed can be derived:
(18,43MHz / 14,3MHz) * 145MHz = 186,55MHz
Finally, we checked how high we could go and still get the CPU to wake up.
[POST picture]
The system managed to POST at 4339 MHz with a bus speed of 206 MHz. Let's hope we break the magical 4 GHz boundary in our next test. In other words, there's more to come...
I work in cryo-related science and as we all no liquid nitrogen creates a gas layer between its source and the liquid nitrogen as it boils off. This phenomena can be exploited for need tricks such as quickly putting your hand in liquid nitrogen and pulling it out as well as placing it in your mouth and breathing smoke.
Liquid propane on the other creates no gaseous layer when cooling i.e. if you dip your hand in liquid propane its gone. I wonder if this would allow for even greater limits.
Is there some way we can get a new topic for overclocking, case mods, and all the other shit that I just plain don't care about anymore?
I'm not looking to troll here, and I must admit that back in the day of 486, AMD-K6 and the like, I was very much interested in overclocking.
Now, I would prefer to buy my absurdly cheap processor, and just let it run.
I would just block the hardware category, but cool new hardware tends to be one of my favorite things to read about. We just need some additional segmentation.
From my experience working with LN in the lab is that getting even tiny drops on your hands is like getting splattered with hot cooking oil and to get a good splash from it I'd expect would create a flash frostbite burn.
Oh, let's not get wimpy! You can pour (a bit) of LN2 into your palm, quickly turn it over, and not get frostbite. Tiny drops are no big deal, just shake them off quick. You are to some extent insulated by the gaseous N2.
Safety goggles OTOH are probably a really good idea. Aprons are good too (I once had a bit of LN2 go down my pants into my crotch - it gets ya jumping!)
how much longer before a double posting gets on...any bets?
Nope, only about couple hundred GHz. You are limited by the gap voltage of superconductors, at too high frequency electron pairs which carry supercurrent break down. Nb goes to about 700 GHz for simplest digital divide-by-two operations.
:)
Even tougher limit is speed of light in your wires.
Believe me, I do this fdor fun and paycheck too!
Paul B.
OK, before you laugh: you can get a 400mhz iMac "logicboard" with a built-in G3 processor, all the built-in ports (including Ethernet) for under $150. It's plenty fast, passively cooled, and without the CRT that typically comes with computers, will consume about as much power as your clock radio. All you have to figure out is a chassis. And as we all know, it runs "Darwin" BSD quite well...
// I will show you fear in a handful of jellybeans.
I think this might be part of Transmeta's woes... they've never released products that the "enthusiasts" can get into. Look what the overclockers did for AMD!
// I will show you fear in a handful of jellybeans.
And nothing really happend... he was throwing it everywhere and for the most part it just evaporated before it could really do anything. A human won't even feel a few drops of liquid nitrogen if it were to start falling on him.
Liquid Nitrogen is very cold but it cannot survive in the extreme heat of room temperature. When the Liquid nitrogen was on the surface of our lab tables it acted like water on a top of a 600 degrees frying pan. It danced wildly then evaporated. A cup of nitrogen should be no problem unless one of these guys dipped their hands in it.
Hmmm... Pie...
Kind of sad that my out-of-the-box Dual-GHz G4 pulls 6.7 gigaflops on a bad day, huh? (/gloat)
No, really it feels good to troll every now and a lifetime ;-)
-----
"Cogito Eggo Sum: I think, therefore, waffle."
do you remember when someone cracked slashdot and embedded a javascript pop-up of the goatse man in each slashdot story? Every story you read, with javascript enabled, was plagued by the goatse man dancing his ass all over the screen. I couldn't reach the close-button and couldn't reach the netscape menu panel to disable javascript while the goatse man was on-screen. I feel redeemed that those crax0rs used the goatse man instead of hillary clinton or princess diana. w000!
I am an atheist and don't believe in the existance of ihova, jesus, holy spirit, muhammed, budha, and think aliens are not real. I think of pictures and websites as this to be the creations of Christians, Islamics, Budhists, and Catholics in their attempt to invent evil and drive ignorant people to religion(slavery under an authority of religion). I think there is no such thing as a higher power that watches over me. I see so much pain, devastation, starvation, and disease in this world and I think the supreme being is not worthy of my worship and respect because the supreme being has done nothing to deliver me from these hurtful moments. I am an atheist and kindly ask for people to join me on my cause in censoring religions' invented evils because it is a scam to force people into slavery. Every individual on planet earth should have a serial number on his forehead or wrist so he can be tracked and prevented from spreading the lies inherent within the many worldly religions. People use religion as a crutch because they are weak and cannot speak out of self-education without belief in a God. I am educated through many atheist colleges and anyone who operates on these dastardly principles called Capitalism should be shot. Humans belong in groups just to survive and shouldn't be left alone because of their for-profit desires and lies. I await another asteroid to end this world for another 10 million years and then we evolve from the sewage we once were and back into primitive life forms to once again live upto evolution by natural selection.
-Be well.
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benfits:
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Because Windows ME is the worst operating system created by human minds.
It's been a long time.
Water is an insulator on it's own. it won't short out a clean motherboard when we're talking about time periods of a few minutes to a couple hours. After that though, you should worry about the liquid water causing corrosion or absorbing enough conducting materians to gain the properties of a conductor.
:( )
Actually, I've used water in the past to clean low-voltage electronics, such as keyboards. As long as you ensure there is no liquid remaining when you put it back together, and ensure that actual components aren't saturated, the keyboard will run like new for another few years(before someone spills beer on it again.
It's been a long time.
This is how REAL 100% heterosexual men do it! You apple homosexuals - take a look at this you fucking ladies!
There's an article on SilentPC Review where they reduce a 1 GHz Athlon at 1.79V to 600 MHz at 1.17V, dropping the power consumption from 49to 13.8 watts. Link..
They also have plenty of information about quite power supplies, hard drives, heatsinks, etc.
Anyone notice the lack of gloves in the photo. These people must be insane.. or just geniuses if they are pouring liquid Nitrogen with bare hands...
Haha,agree,-->if these guys need the '386's cpu'
I can give it to them.
Hey!Guys there r a gift to u!
a '386SX 25 Cpu,do u like it?
What's wrong with water? It doesn't conduct electricity.
dominionrd.blogspot.com - Restaurants on
I beg your pardon? Windows 98 on a 486/25? Try Slackware with a 2.2 kernel. Slack 7 will do just fine.
Stick Men
Slackware?! No offense, but I'd much rather be using my Operating system than trying to haggle with it to get applications installed. If I were to choose an alternative to Wndows on a 486, it would be OS/2 Warp(after MS got kicked out of the project and all the MS code was rewritten). It would be a good OS to run on(Fast? Fast!), but I'm not sure if there would be a browser as slim as K-Meleon or Galeon for it.
It's been a long time.
Well, I have an old 486/25sx in the cupboard (Compaq Presario) with 20MB RAM and 100MB hard drive. I was going to turn it into an X Terminal but alas my g.f. has moved in and there is no room to have it up just now. I have booted slack on it OK but not set up a proper system. I'll do that over NFS from my main machine, when we get a bigger house...
Stick Men
It can dissolve salts/"dirt" from whatever surface it condenses onto, and thus get enough free ions to start conducting, though...
Just confirmed the report on medline (search of medical journal articles).
...
Couldn't find the article itself but I found a letter discussing this child who drank a mixture of orange juice and liquid nitrogen (who subsequently required major abdominal surgery) which quoted this other case
"The only similar case was that of a chemical engineering student who drank a beaker of liquid nitrogen and developed immediate pain and collapsed. He was found to have free air under the diaphragms and pneumomediastinum but no perforations. Full recovery followed supportive care (Cynthia Aaron, personal communication, 1998)."
hmmm.....