Phase change/watercooling/extreme overclocking ??

BCN · Post by **BCN** » Fri Jan 31, 2003 8:40 am

just do not use water if you plan to hook up those kyrotech units. they are phase change, right? use ethyl alcohol or the mixture - it won't freeze till very low temps

BCN · Post by **BCN** » Sat Feb 01, 2003 7:22 am

well in the pharmacy you should get some 96º pure alcohol (unless they do not sell that in USA...) or just go to the licor shop and buy some cheap vodka

because I think pure alcohol freezes at -113ºC and then it depends on the mixture with water.

also you could use glycol alcohol (car refrigeration fluid) - you can buy mixtures with freezing point on -40ºC

I think I have read about the liquid mixture selection for liquid cooling below freezing on www.overclockers.com some time ago.

Blueneko · Post by **Blueneko** » Tue Feb 25, 2003 10:38 pm

ciscokid454 wrote:
BCN wrote:well in the pharmacy you should get some 96º pure alcohol (unless they do not sell that in USA...) or just go to the licor shop and buy some cheap vodka
because I think pure alcohol freezes at -113ºC and then it depends on the mixture with water.

also you could use glycol alcohol (car refrigeration fluid) - you can buy mixtures with freezing point on -40ºC

I think I have read about the liquid mixture selection for liquid cooling below freezing on www.overclockers.com some time ago.
he he..no need to go to the liqure store..
i've got the vodka in the cupboard....
hmm..right next to my jack..
swell.....
i'll be enjoying myself whilst I blow things up:-D

Would moonshine work?

Blueneko · Post by **Blueneko** » Wed Feb 26, 2003 2:09 pm

hyperspace · Post by **hyperspace** » Fri Feb 28, 2003 8:56 am

Moonshine...

I remember a fire going down the pipe. It's like EverClear.

hyperspace · Post by **hyperspace** » Mon Mar 10, 2003 9:09 am

I remember that stuff. Someone had a WEB site showing a Total Emersion project. Everything but the power supply was under this fluid. Interesting concept but a lot of work.

Post by **Derek** » Mon Mar 10, 2003 10:57 am

hyperspace wrote:I remember that stuff. Someone had a WEB site showing a Total Emersion project. Everything but the power supply was under this fluid. Interesting concept but a lot of work.

How hard can it be?

Step 1: Fill large tub with liquid.
Step 2: Put computer in liquid.
Step 3: This is just an extra step (you know, incase).

hyperspace · Post by **hyperspace** » Mon Mar 10, 2003 12:35 pm

Derek wrote:
hyperspace wrote:I remember that stuff. Someone had a WEB site showing a Total Emersion project. Everything but the power supply was under this fluid. Interesting concept but a lot of work.
How hard can it be?

Step 1: Fill large tub with liquid.
Step 2: Put computer in liquid.
Step 3: This is just an extra step (you know, incase).

Well, not quite 1, 2, 3...

They were using some sort of compressor system to cool the liquid. So, step 4, turn ON compressor.

BCN · Post by **BCN** » Sat Mar 22, 2003 7:34 pm

some tips on 3M fluids...

I guess they are polifluorocarbons, dielectric, low freezing temperature...

But one BIG minus: very low viscosity and ecologically harmfull, not biodegradable, acumulate in the human body if ingested or inhaled, after the certain acumulative dosis - toxic...

so the problem here would be plumbing for avoiding the leaks, cause the viscosity is like 10 times lower than the ones of the water, so it will leak through all the possible gaps at the pressure more or less 10 times lower than the one of the water.

Besides they cost A LOT. the guys in New Zealand spend more than 1K$ on the gallon (around 4 liters???)

So good luck! I suggest refrigeration liquid or alcohol