Are there any tuts on water cooling two GPUs? Loop help needed?

[LegendaryGamer]

I am trying to set up two GPU water blocks but need help with looping. What is the best way to loop two GPUs on one loop and still keep the temps which they would share still cool without heating the second GPU up on the liquid that is pasted from the first GPU? Or is it better to have two seperate set-ups for looping? Are there any tuts here that can help me answer these questions? I would like to see how it is done or here any tips. Thanks.

LegendaryGamer

[billbartuska]

Originally Posted by LegendaryGamer

What is the best way to loop two GPUs on one loop and still keep the temps which they would share still cool without heating the second GPU up on the liquid that is pasted from the first GPU?

The temperature difference in a loop is less than 1*c. It doesn't work the way you are thinking. Don't look at at as the water "hearing up", but as the water "carrying the heat" from the blocks to the radiator.

Here are some test results from:
http://www.xtremesystems.org/forums/...ad.php?t=77260
PA120.3 with 3x Panaflo M1A@7v
< = In, > = Out
Air<: 22.5 | 24.0 | 22.5 | 23.0 | 23.0 | 23.5 | 22.5 | 23.0 | 22.5 | 22.5
Air>: 27.5 | 28.0 | 27.5 | 28.0 | 28.0 | 28.5 | 28.0 | 28.5 | 28.0 | 28.0
Liq<: 30.5 | 30.5 | 31.0 | 31.0 | 31.0 | 31.0 | 30.5 | 31.0 | 30.5 | 31.0
Liq>: 30.0 | 30.0 | 30.0 | 30.0 | 30.5 | 30.5 | 30.0 | 30.0 | 30.0 | 30.0
CPU: 15.0 | 15.0 | 15.0 | 14.0 | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 | 15.0
GPU: 15.0 | 15.0 | 15.0 | 16.0 | 16.0 | 16.0 | 15.0 | 15.0 | 15.0 | 15.0

Avg Air <: 22.9
Avg Air >: 28.0
Avg Air Dt: 05.1
Avg Liq <: 30.8
Avg Liq >: 30.1
Avg Liq Dt: 00.7


The "best" loop configuration is:
Pump > Radiator > Blocks > Pump,
But any configuration that keeps the tubing lengths short is OK.

Perhaps this will help you also:
http://www.over-clock.com/ivb/index.php?showtopic=20277