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Copper pipe cooling loop

post #1 of 19
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OK, so I am working on a custom computer mod (not in a regular pc case) and it is starting to become apparent that I may need to water cool this thing due to lack of proper ventilation (or the ability to properly ventilate the MOBO). I would like to setup the cooling loop with copper mainly because of the look of it (would fit in better with this mod). Has anyone used copper for this and/or do you know of any gotcha's I need to be aware of?

Thanks!
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post #2 of 19
Do realize that you may have to disassemble everything to switch out components.

Do you know how to sweat pipes?
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post #3 of 19
Also you need to have the equipment, knowledge, and skill to braze copper. You can't use flux and solder if you're going to use the copper pipes in a closed loop. Flux is acidic, and if you use it on a closed loop it will eventually eat components.
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post #4 of 19
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Do realize that you may have to disassemble everything to switch out components.

Do you know how to sweat pipes?


Yes to both (I have done tons of plumbing, including my house...). I have my eye on a couple of quick disconnects to separate the loop into manageable pieces. My friend and neighbor is also lending a hand in the design as he has 30 years of experience... Does anyone happen to know what sort of pressure the cooling lines will be under? (matters for the connects)

My main concern is condensation and stress. I am swamped at work right now, but hope to have a SketchUp design done soon.
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post #5 of 19
The ammount of pressure in the line is pretty much directly related to your pump. The heat generated by PC parts is minimal in terms of building pressure within a WC line, so if you're using standard PC LC pump, less than 5PSI ( i think, others will know better than i).
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post #6 of 19
Thread Starter 
Quote:
Originally Posted by HatesFury View Post
Also you need to have the equipment, knowledge, and skill to braze copper. You can't use flux and solder if you're going to use the copper pipes in a closed loop. Flux is acidic, and if you use it on a closed loop it will eventually eat components.
My friend mentioned this and said the way they get around it in some applications is a specific chemical they use to clean the inside of the pipes before use. Still looking into that.
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post #7 of 19
Quote:
Originally Posted by airbozo View Post
My friend mentioned this and said the way they get around it in some applications is a specific chemical they use to clean the inside of the pipes before use. Still looking into that.
Well just make sure you research carefully into the chemical itself, as well as the time it takes to work etc. Many people think they'll just flush the flux out after soldering, but the ammount of time it would take is tremendous, and flux still gets out of time as it's sealed within the weld, and over time the weld weakens and lets flux out. I'd strongly reccomend brazing if at all possible.
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post #8 of 19
This sounds liek a cool concept. I would love to see pictures. And technically, wouldn't it cool slightly better than normal loops? If you have good airflow, wouldn't the pipes themselves release some heat?
post #9 of 19
Quote:
Originally Posted by Betrivent View Post
This sounds liek a cool concept. I would love to see pictures. And technically, wouldn't it cool slightly better than normal loops? If you have good airflow, wouldn't the pipes themselves release some heat?
The tubing used in a normal LC will aswell. Yes the copper pipes will have a higher coefficent of heat, however it doubt it would make any measurable difference.
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post #10 of 19
Ah well, it was worth speculating.
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