Watercooling loop layout

Staffy50 · 25 Dec 2011 at 16:54

So, my custom WC loop will be arriving soon, and im trying to work out in what order to set everything..

I will be running the D5 Vario Pump in my HAF X case. I have a 360mm rad and two 120mm rads to cool my overclocked 2500k and two overclocked 6950's in crossfire.

So, mounting the rads etc i will play with when it all gets here, but im not sure on what order to run the whole loop. atm im thinking running it

Res>Pump>360rad>gpu1>gpu2>120mm rad 1>120mm rad 2>CPU

Is that a bit long? Would it be better to run it

Res>Pump>360rad>gpu1>gpu2>120mm rad 1>CPU>120mm rad 2

I would rather run it through the gpu's first as there what i want to OC the most..

Another idea was to split the loop after the pump at the loss of presure s

_ 360rad>gpu1>gpu2_

Res>Pump-{---------------------}-> Back to res

-120rad>120rad>Cpu-

Would the hit on pressure be too much for that or would that pump handle it?

Cheers for any insights

Staffy50 · 25 Dec 2011 at 17:36

surely after passing over a hot gpu it would be beneficial to pass through another radiator before the cpu?

Staffy50 · 26 Dec 2011 at 20:06

joxang said:
D5 can handle all that easily. Re: temperatures, as said, loop order only makes the tiniest amount of difference as temperatures equalise very quickly. I have temp monitors before and after a 360+480 rad. There's 1.5 degrees of temperature difference max between the two probes.

Oh, had no idea it would be that insignificant! Thanks for the info!

Staffy50 · 27 Dec 2011 at 10:24

Bubo said:
Do not do the split route, i.e. your third one. You have no control over the final flow rates in each leg, and therefore could starve one of them.

Roger, won't be doing that then.. Thanks mate.