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[youtube] Submerged computer in 3M non-conductive chemical - Page 10

post #91 of 133
Quote:
Originally Posted by The Fryer View Post
well this stuff can be really cooled down. i would say use a phaze change system like a fridge setup, but have the coils at the bottom of the tank, then cool the liquid to sub zero before using it at all. that way you could keep the liquid below its boiling point, thus little evap. but i would also use a heat sink on the cpu to lesson the boiling effect by spreading the cooling surface over a bigger area.
You might as well just use chilled mineral oil for a small fraction of the cost then.
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post #92 of 133
That is so cool! A bubbling computer.
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post #93 of 133
Quote:
Originally Posted by cubanresourceful View Post
Wouldn't it be better to have a high boiling point?
no, think about water, it doesn't go above 100C (under normal circumstances).

with a low boiling point, you can keep the temperature lower, 34C to be exact
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post #94 of 133
Quote:
Originally Posted by Crazy9000 View Post
You might as well just use chilled mineral oil for a small fraction of the cost then.
not realy. mineral oil when cooled below 0 starts to get really thick. this stuff will not gel or freeze till around -160, so in turn it is very pump able, try to pump oil below 0 deg and see what happens, it will flow slowly. this stuff you could run sub 0 temps and be able to run it through a cpu block at a decent rate keeping it even colder.
post #95 of 133
Quote:
Originally Posted by beers View Post
Wouldn't the CPU benefit a bit more from a higher surface area (ala heatsink) ?
Quote:
Originally Posted by Epitope View Post
Yeah I think something like this would be perfect.

http://www.svc.com/den-b.html

a 1U copper passive heatsink. It would increase the surface area by a lot.
I feel like the whole point of this liquid is that it boils on the surface of hot components. If a big heat sink never quit reaches boiling, its just going to heat the entire liquid slowly. My guess is that you would want the smallest heatsink you can to make sure its always boiling the liquid. The gas can then escape, cool/condense, and drip back in.

If the liquid isn't boiling you are doing it wrong. At least that's my interpretation of this.
    
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post #96 of 133
omg that's awesome
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post #97 of 133
While it does look pretty cool - it actually seems to suck at cooling

Watch the video again and take note of what you see. The case has crushed ice down either side cooling the liquid, and only onboard gfx - and even with all that ice and onboard gfx, the cpu cores still reach 55C!
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post #98 of 133
Quote:
Originally Posted by un-nefer View Post
While it does look pretty cool - it actually seems to suck at cooling

Watch the video again and take note of what you see. The case has crushed ice down either side cooling the liquid, and only onboard gfx - and even with all that ice and onboard gfx, the cpu cores still reach 55C!
Actually if you watch the very beginning of the video is says that the stuff on either side is foam, not crushed ice.
    
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post #99 of 133
My question is how does it handle a high-end system (i7/sli/crossfire) and wouldn't it be better to keep a heatsink on the CPU?
    
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post #100 of 133
Quote:
Originally Posted by un-nefer View Post
While it does look pretty cool - it actually seems to suck at cooling

Watch the video again and take note of what you see. The case has crushed ice down either side cooling the liquid, and only onboard gfx - and even with all that ice and onboard gfx, the cpu cores still reach 55C!

Yea where are you getting the crushed ice from?
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