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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 ???
I don't know about liquid nitrogen, but you can pick up a pint of ben & jerry's anywhere... much tastier.
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.
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
I want nitrogen evaporating from my pc too!
It's too cool!
...I don't even need liquid nitrogen to overclock my CPU.
I just give it The Fonzie and it runs like hellfire.
The coolest gas you could get normally would be liquid Helium, at about five degrees above absolute zero. Believe me, it's not easy to work with in the lab (and if you think waving a vacuum cleaner around is the way to reduce surface pressure, you shouldn't go anywhere near it).
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....
Do my eyes deceive me? [muropaketti.com] 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.)
If you read the english summary, it says that they managed to run the CPU at 3998 MHz, but had to knock it down a notch to keep it stable.
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
Hello, That's correct. I was able to run the last test with 3998MHz CPU clock Here is the original size screenshot: http://www.muropaketti.com/bench/nw2800/superpi_39 .gif
http://www.muropaketti.com/artikkelit/cpu/nw2800/l n2_5.jpg
keanmarine.com
We have modified TurboPLL-module on Asus P4T533-C motherboard which allows us to use higher front side bus.
Thanks to this module, when we set 145MHz from BIOS, the FSB is actually 186MHz.
You can check out the pictures of modified motherboard here.
By the way, no one has made mention of the price of such a setup. OK they had 15 minutes of excitment for the price of a _really_ expensive CPU, custom motherboard, not to mention the nitrogen-cooling gear, the voltmeters and other lab equipment they use.
For the moment I'll stick to that 1.5Ghz processor which barely produces any heat & is so damn quiet:)
CPU still works fine and actually we are already planning for the next test with liquid nitrogen
Earlier we tested Pentium 4 2,4GHz CPU with liquid nitrogen over 20 times and it's still kicking
We dry the components very carefully after the test with compressor.
I don't see any "AMD Approved" sticker.
Ali
[Apoligies, but someone was gonna say it sooner or later!]
Ph33r m3!!!
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.
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"
Apple's latest CPU's run at 1.25 Ghz, which is more like 3 times slower than that P4. Still, 1.25 is without liquid nitrogen cooling.. so that's not really relevant either...
;-)
And the most interesting part is that Mac users (like myself, love my Titanium Powerbook) are very happy we have sufficiently powerful non-wintel CPU's which consumes only a small amount of energy. Imagine putting one of those P4 2.8 in a laptop...
Probable impossibilities are to be preferred to improbable possibilities.
Aristotele
Their server seems to be withstanding the slashdot effect quite nicely...
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.
*ahem* branch prediction?
---- Den ene knappen er powerknapp, den andre er Bender voice knapp "Bite My Shiny Metal Ass"
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
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
is not ten liters. Ten liters is ~20 pints.
You work for Nasa?
These stories are slashdot's equivalent of the "grow three inches" spam. Its done everytime a new chip is released.
When I was in University, in my first year, we had a lab experiment on superconductors. It involved (amongst other things) using liquid nitrogen to cool the conductor down to 77K, in order to make it superconducting.
I never did it, but I saw others put their fingers in the container, and splash liquid nitrogen around on the desk, etc. As long as you're quick, it's perfectly safe.
Also, as for the cost, back then I remember being told that liquid nitrogen, bought in sufficient quantity, is about the same price as milk, so I imagine that theirs didn't cost them that much; probably no more than most people would spend getting drunk. They wouldn't have cooled the nitrogen themselves, just bought a container of it precooled.
Cheers,
Tim
It's official. Most of you are morons.
"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
http://www.octools.com/index.cgi?caller=articles/s ubmersion/submersion.html
Lasers Controlled Games!
I guess P4s really DO make the Internet go faster!
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
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.
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
If you want really cold you need to find that place in Siberia where they have down to -57C.
I have a P4 2.0 GHz laptop. The battery life is fine, but I can feel it through the 3/4" wood of my desk!
A deep unwavering belief is a sure sign you're missing something...
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. /., News for Nerds, not /., News for People who Do Nothing but Surf and E-Mail.
>>>>>>>>>>
You're obviously not a real man. How long are you? 3"? Seriously, this is
A deep unwavering belief is a sure sign you're missing something...
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...
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!)
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...
Your hand, and that "in your mouth" story reminds me of that Darwin Award wannabe that actually SWALLOWED liquid nitrogen based on remembering wrong about the "in your mouth" trick. He wrote up a great article about all the damage and surgery required to fix that little mistake :)
Contrary to popular belief, coding is not all free blow-jobs and beer. Those things cost MONEY!
...which is still perfectly alright for what many people do. Believe it or not. If you find the right software(in this case, I'd guess Windows 98 + 98lite + microGUI), even a 486 can fly.
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.
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.
What's wrong with water? It doesn't conduct electricity.
dominionrd.blogspot.com - Restaurants on
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.
It can dissolve salts/"dirt" from whatever surface it condenses onto, and thus get enough free ions to start conducting, though...