The Astroman
Active Member
Does Liquid Nitrogen conduct electricity? If not, could one plunge his mobo in a bassin full of liquid nitro and overclock his cpu 1-2 ghz up? Of course, all other components such as hdd would be out of the bassin.
Liquid Nitrogen
- Thread starter The Astroman
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magicman
VIP Member
It would be cool, but I think it wouldn't work. You'd get masses of condensation which would affect things, plus if it's too cold the cpu would seize up completely. Liquid NO2 is about -190c, which is a bit too cold for cpu's to function.
I dont think NO2 conducts itself, in answer to your first question. 78% of the atmosphere is nitrogen, after all.
I dont think NO2 conducts itself, in answer to your first question. 78% of the atmosphere is nitrogen, after all.
Yeti
VIP Member
LN2 boils at 77K (-196C) and has been used (many times) to overclock. Its not very practicle and is mainly just to see how far you can OC. Usually only the CPU is in contact with the LN2 since the rest of the board is just adds to the heat load. I don't think pure nitrogen is conductive since it is a non-polar molecule.
magicman
VIP Member
Ok that was one of the most stupid comments I have made on this forum.
I found a video where they broke the 5Ghz barrier and set a new world record (allegedly).
Take a look- http://www12.tomshardware.com/images/thg_video_11_5ghz.zip
It's 23MB, but it's worth it.
Well of course Liquid Nitrogen would work to overclock, tomshardware used it to break 5GHz as mentioned above, but liquid nitrogen is really just for showing off, it could be useful to break higher overclocks but the overclock at tomsharware is nothing, people have broke 5 GHz on air with the stock intel heatsink...
I also think the record is 7.2GHz set buy this guy at the XtremeSystems Forums, It was only stable in the BIOS but Im sure he could clock it down a bit and get it stable in windows above 5GHz. Im sure using liquid nitrogen wouldn't be very healthy for your computer though.
I also think the record is 7.2GHz set buy this guy at the XtremeSystems Forums, It was only stable in the BIOS but Im sure he could clock it down a bit and get it stable in windows above 5GHz. Im sure using liquid nitrogen wouldn't be very healthy for your computer though.
Kboy
New Member
I don't mean to correct the master, but air is composed of many different elements, as we learn in Chemistry, not one thing, so I don't think you caould liquefy air. You could liquefy Oxygen, at least according to Metal Gear Solid 2, lol. Just messing Praetor!Praetor said:Now what happened if we used liquid air which is significantly cooler?
Yeti
VIP Member
Well, that article is basically assuming only nitrogen and oxygen, things like CO2 would still solidify at higher temps. The temperature it quotes is exactly the vaporization temp of N2. As for the rest of it, its not that hard to get things to a lower temp. I'm working on a project now that will (hopefully) get down to 10K (-263C).
It was the best i could do within 4 clicks
.... i got some book at home with the temp of liquid air listed except thats at home and im here.... lol (ill grant its probably an extrapolated value though)Cool! Using lasers to reduce/eliminate KE of the particles?
Yeah read about that somewhere where some Uni somewhere out southwestern US used that approach to bring temps within degrees of absolute (dunno the actual numbers i dont recall it being more than 10-15K) by essentially trying to stop the motions at an atomic level .. all for the low price of roughly $10000 worth of equipment too
cidViscous
New Member
come on, superconductors
we don't need cooling systems like that, yet. the benefits gained by overclocking can be duplicated by cycle sharing (i.e. grid computing) far more easily, inexpensively, and usually with more stability.
overclocking is great for squeezing extra performance out of older rigs, but if you put too much time and money into the project, the trade-offs quickly become worth more than the end result. unless it's the challenge.
i can certainly understand the desire to see how far you can push technology, and i am grateful to those people who undertake these projects, for we gain much knowledge about the limits and capabilities of our products that way, but using liquid cooling rigs just to overclock an old amd seems like overkill.
now, once they get superconductors into production, it will be essential to have those kind of systems, but the performance boosts will be so massive it will be worth the cost, size, and trouble.
at least, imho....
--cid
we don't need cooling systems like that, yet. the benefits gained by overclocking can be duplicated by cycle sharing (i.e. grid computing) far more easily, inexpensively, and usually with more stability.
overclocking is great for squeezing extra performance out of older rigs, but if you put too much time and money into the project, the trade-offs quickly become worth more than the end result. unless it's the challenge.
i can certainly understand the desire to see how far you can push technology, and i am grateful to those people who undertake these projects, for we gain much knowledge about the limits and capabilities of our products that way, but using liquid cooling rigs just to overclock an old amd seems like overkill.
now, once they get superconductors into production, it will be essential to have those kind of systems, but the performance boosts will be so massive it will be worth the cost, size, and trouble.
at least, imho....
--cid
Yeti
VIP Member
I don't think anyone was suggesting that it would be a good idea to really use those cooling systems. Massive overclocking is, most always, just for show. The reality is that a system that would cool to such low temperatures would never be efficient enough to use. A simple Carnot efficiency calculation would show that the maximum ideal thermal efficiency you could ever reach through a heat pump to only LN2 temps is about 25%, not very good. They do have their uses though, case and point my project.