View Full Version : best cooling ever ... put your pc in your fridge
i12bina3
08-31-01, 04:16 PM
just discussing this with my cousin ... why make it so hard trying to cool your entire pc ... just buy a cheap fridge and try to fit in your pc ... make sure it cant get wet but it does get the cold temp.
maybe this idea is totally wrong but i think it is possible
I have seen several articals floating around on the net about putting systems in small fridges. All of these have 1 thing in common, they cool Intel cpu's and use old vid cards (less heat). There is a big differance in heat output when compared to AMD and combine that with the that generated by the rest of the system and a small fridge will not be able to handle it.
I am using a 5 cubic foot freezer to chill water for one of my AMD systems and it is just enough to hold my temps any less would not be sufficent. This is only cooling the cpu.
i12bina3
08-31-01, 04:35 PM
what? do you mean your cpu has -17c isnt that impossible?
or do you mean 17c ... ?
Originally posted by i12bina3
what? do you mean your cpu has -17c isnt that impossible?
or do you mean 17c ... ?
I have a feeling he meant 17c since he only mentioned chilled water and no peltiers.
[QUOTE]Originally posted by sfa ok
I have a feeling he meant 17c since he only mentioned chilled water and no peltiers. [/QUOTE
Right. Done!
Originally posted by i12bina3
what? do you mean your cpu has -17c isnt that impossible?
or do you mean 17c ... ?
It is -17C not +17C. No pelts just chilled water as pelts are not good enough to cope with the heat of a TBird under load. Water temp is -25C. Some details are on my site.
I'm not into the watercooling thing, but I don't get how you could possibly get -25C for your water temp. Water freezes at 0C, so that must mean you are circulating ice thoughout the system :D . Correct me if I'm wrong, and tell me how you could ever cool water (and not make it ice) to below freezing??
JigPu
Originally posted by JigPu
I'm not into the watercooling thing, but I don't get how you could possibly get -25C for your water temp. Water freezes at 0C, so that must mean you are circulating ice thoughout the system :D . Correct me if I'm wrong, and tell me how you could ever cool water (and not make it ice) to below freezing??
JigPu
You ever hear of a substance called antifreeze? I run a 50/50 mix of antifreeze/distilled water.
Why not put the frige in the computer? :D
I hope to set something up with an old dorm frige soon, I have a p3, and would like to see how much more I could get outa her by extream cooling, if nothing else I could put another mobo/cpu in here!
-Trek
Well I have seen a few that post on AMD setups... they ran the tests on AMD due to that most overclockers use those anyways...
Now another reason most dont use the fridge is its hard to make sure that there wont be any condensation... (spelling?)
outhouse
09-01-01, 11:46 AM
Sorry guys but it has been discussed before and the fridge idea does not work, it will work for a short period of time but fridges are not made to handle any kind of heat inside them they have a hard enough time just keeping the inside cold when you open and close the door allot. Chilling the water however works the best and refrigeration units that do this are top notch when it comes to overclocking. not believing -17C you guys make me laugh :) [teasing politely] some military chips run way below that 24\7
Pitspawn
09-01-01, 12:48 PM
What forms of protection have you installed for condensation? I couldn't imagine a new processor running at -17ºC without creating pools of water in your case :D
BTW can you post a link to your site? It seems like interesting stuff!
Any time you cool anything below ambient temperatures, condensation becomes a concern. And, if you live in a humid area, it's a BIG concern. Condensation shorts out microelectronics very effectively, and can instantly bring about the demise of a processor or other computer part.
Sticking a comptuer in a fridge has been done, but it's impractical and not as effective as a well-designed water/Peltier cooling system with proper condensation-prevention measures taken for the cooled areas.
Besides, you can get mad cooling with water and a Peltier, as my attached image shows. The attached is of a P3-700E running at 980 MHz with water/Peltier cooling action. My standing record for the coldes my processor's gotten in -17 deg. C, idling in Windows 2000 Pro.
oO
Argh, it dropped my pic.
oO
Originally posted by Pitspawn
What forms of protection have you installed for condensation? I couldn't imagine a new processor running at -17ºC without creating pools of water in your case :D
BTW can you post a link to your site? It seems like interesting stuff!
I have been very busy so there are some much needed updates that are lacking but enough is there for you to get the idea.
For condensation
conformal coating front and back of mobo, silicone/mineral spirits mix.
Foam on back of mobo.
Socket filled with silicone and foam.
Socket pin holes filled with dielectric grease.
Top of cpu (not the core) painted with silicone/mineral spirits mix.
Waterblock encased in foam.
Waterlines insulated with foam.
The system has been running like this since April and no condensation has occured yet.
The site is http://www.maxoc.com or just click on the www icon below
i12bina3
09-01-01, 04:43 PM
just a simple question ... what is the best temperature for a cpu ... isnt -17c bad? i always thought the ideal temp for a cpu is around 18c ... i could be wrong of course
The freezier, the better. IC's (integreted circuits) benefits from a 5-10% performance gain per 10 celsius degrees drops. A chilled processor is most likely to be more productive in that environment than just room temp.
You're right in term of a good ambient temp. Manufacturers specs their MTBF (manufaturer time before failure) at fixed values of temp. But if you can't get rid of their heat it will harm in the long run so you won't get the optimal life of you chip. Heat is the major killer in electronics.
You can get some articles on the net on this if you're interested.
xcr20
outhouse
09-01-01, 09:25 PM
They have done test and found out that if you run a CPU at -50 [or somewhere close, really low temp] that a CPU will run at double there rated speed. I dont know what they where running or what size but as the above post said if you can take care of condensation cooler the better allthough its not good to let the CPU change temps to quickly.
outhouse
09-01-01, 09:30 PM
Originally posted by Would71
Some of us aren't looking to use a fridge.. some of us are looking to use a separate air conditioning unit and pull the heat out of the house altogether.
Sorry I was posting to the original question. I'm sure your idea would work fine.
Despotes
09-02-01, 08:23 AM
An air conditioner seems more sensible. Either use ducting or just set up your tower next to your a.c. on a bench or table. :p
vBulletin® v3.8.7, Copyright ©2000-2012, vBulletin Solutions, Inc.