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Would my loop freeze in -15?

post #1 of 13
Thread Starter 
Hi all,

We've got some great overclocking temperatures here today so i thought i might go out side and overclock a bit. Now i'm wondering if my loop would freeze up althuogh i'm not sure.

If i'm outside for an hour and benchmarking the water in my loop will be slightly heated up while moving around the loop instead of sitting still which should increase the time it takes to freeze.

Does anyone have any idea how lnog i have before the water in the loop freezes
post #2 of 13
Depends are u just on distilled water?
Or coolants? They have a much lower freezing points

also I think the heat from you CPU will keep it from freezing anyway, I think your good
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post #3 of 13
I think the heat of the components would heat up the water to above freezing.

Condensation would be a bigger problem than freezing, I'd never recommend outside benching unless you're going for a suicide run.

Water has a very high heat capacity (4183 J/Kg/K) and then there's other things like the energy needed to freeze it.

IMO it wouldn't be worth it, see what other people have to say though.
post #4 of 13
It shouldn't. Keep it running and the flow will keep it from freezing.

Condensation also wont be a problem because the loop will be warmer than the air. For condensation to occur the air must be warmer than the loop.
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post #5 of 13
i'd also be concerned about the other circuits in the case exposed to extreme temperatures. i'm not an electrical engineer, but i think certain components probably wouldn't like being that cold.

you know in the owners manual at the beginning there's all those warnings "do not expose to temperatures above X" "do not expose to temperatures below Y" "do not eat" etc
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post #6 of 13
Quote:
Originally Posted by lloyd mcclendon View Post
i'd also be concerned about the other circuits in the case exposed to extreme temperatures. i'm not an electrical engineer, but i think certain components probably wouldn't like being that cold.

you know in the owners manual at the beginning there's all those warnings "do not expose to temperatures above X" "do not expose to temperatures below Y" "do not eat" etc
he has no reason to worry. Tons of people use phase change, LN2, and Dice which is much colder than that
 
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post #7 of 13
Make it -30 and put it in a vacuum
     
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post #8 of 13
Go for it. You should be fine, and if it does start freezing it would just stop flowing and you would see your temps just go up. It won't freeze the same way that water normally freezes because of the flow, so it breaking anything wouldn't really be an issue even if it did freeze.
post #9 of 13
If you are going to be keeping system on go for it. But if you leave it outside doing nothing it will freeze. IF you want to be on the safe side add some coolant, anti-freeze etc. Once you are done with the fun just flush your system back to distilled water.
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post #10 of 13
Even if he kept the system on he would have problems with freezing. -15C is quite cold, so unless he's running a 15C+ water delta the water temperature will go below 0, at which point it will turn into ice. While the motion of the water will prevent the entire loop from freezing, ice will form in places and it could cause permanent damage to your WC gear. This is much like how a flowing river usually freezes over except for a small part in the winter.
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