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Has anyone tried submerging the system in LN2???

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NFS

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Joined
Apr 3, 2001
There it goes:

I wanna go beyond 133FSB, which I can only get from my mobo (Abit BP6) - for that I need some kind of turbo pll. I have one very crazy idea - I wanna submerge all the system, except moving parts in LN2 (liquid nitrogen). And I wanna push my Celeries from 366 to 1GHz and beyond, because my harddrive can withstand more than 46.5MHz (I think about 50-60) PCI. Before I was considering Peltier setup, but then I decided that sooner or later I would go to LN2, so I decided sooner... :) Now I am in the phase of theoretical studies of the refrigeration systems, primary stage of gathering needed materials and the KIT assembly. :)

So maybe any of you have had experience with LN2, or maybe you have some great ideas about this... Please tell me then, because it will be the first time for me going into the phase of liquid cooling. As I already told, I am not going to stop at peltier stage...

Brainstorm it, please :)
 

Thelemac

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Mar 15, 2001
I'm not positive about this, but wouldn't LN2 conduct? And also that would probably put the cpu at somewhere around -100 C, and that's bad, cause at about -50, the cpu starts pulling apart due to the contracting silicone. Perhaps if you got some form of protective layer, and insulated it a bit, then it would work.
 

dimmreaper

Senior Member
Joined
Dec 16, 2000
Location
home
Dryice doesn't conduct electricity, maybe you could just bury the system in a cooler full of it.
 

klosters64a

Senior Member
Joined
Dec 17, 2000
Location
Seattle, Wa
Liquid nitrogen is indeed a hazardous substance. The best description of its proper use for cooling PC components I ever saw was on a Japanese site, a couple of years ago. I should have bookmarked it and written down the URL!

It appears that a custom made aluminum block is wrapped around the processor. The block is then cooled with the LN2. The processor, with block is then inserted into the slot or socket on the mainboard. This guy achieved 800+ Mhz Clock Speed with a Celeron 300A on an Asus P2B-B mainboard. I think that the CPU stabilised at -200C, and then got warmer as the test progressed.

I really think this is an obvious example of "kids, don't try this at home." The guy from Japan did this in a real-deal laboratory. Seeing my finger(s) snap off and and shatter on the floor just kinda...
 

Metaxas

Senior Member
Joined
Dec 25, 2000
Super cooling the whole motherboard isn't really a good idea anyways. Once the board gets about about 50 below zero C, its starts to malfunction because the capacitors and everything are freezing, and also, what the other guy said about the cpu pulling apart...that would suck. However, I do like the whole submersion idea though, cause you wouldn't have to worry about condensation, nor dirt or anything.
 
OP
N

NFS

Registered
Joined
Apr 3, 2001
Thelemac (Apr 04, 2001 09:20 p.m.):
I'm not positive about this, but wouldn't LN2 conduct? And also that would probably put the cpu at somewhere around -100 C, and that's bad, cause at about -50, the cpu starts pulling apart due to the contracting silicone. Perhaps if you got some form of protective layer, and insulated it a bit, then it would work.

Well dear, it seems you did not study physics that much at school... Yes silicone would contract and you are right probably it would be torn apart, but with one condition, only if you poor alot of LN2 on the hot chip... Besides CPU would stay around -196C (boiling point).
 
OP
N

NFS

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Apr 3, 2001
You see guys... The point here is that I don't know about the battery for BIOS - if it will boot at -196C, because it would be hard frosen and I just dont have enough knowledge to say if the battery would work or not. And the Idea of immersing all the electronic equipment I like because there you would not have any problems with Cas values for RAM at high FSB and also the overclocking of GPU - almost till the theoretical end of it at that temperature... It seems very tempative... :)

maybe any of you know any links to the sites where I could get that Info? :)))
 

bdf24

Senior Member
Joined
Feb 15, 2001
Location
Harford, WI.
I remember reading a website and seeing pics of a guy who submerged his whole system in mineral oil. He also pumped the mineral oil thru a air conditioning unit to keep it cold.
 

Mac42

Member
Joined
Dec 18, 2000
Actually there are some people that make custom submerged cases for about $400. There's a look at one over at http://www.hardwareoc.com/submersed.htm

That would be one hell of a case to put a GeForce2 Ultra in... think of the speeds you would hit with the memory running below freezing.


-=mac=-
 

chaim79

Registered
Joined
Dec 19, 2000
Location
S/W Wisconsin
bdf24 (Apr 06, 2001 04:28 a.m.):
I remember reading a website and seeing pics of a guy who submerged his whole system in mineral oil. He also pumped the mineral oil thru a air conditioning unit to keep it cold.

I have heard of submerging mobo in mineral oil, and also adding other chemicals to the mineral oil to cut down on cerosion? Does anyone know what those chemicals are or if they are needed?

Thanks for any information.
Erik Ekedahl