Quick loop query

The Only Beardy · 12 Jun 2013 at 20:37

Hey, im planning on building a desk case type thing and im going to water cool my system. I'm going to have 2x 240 rads, 1x 250mm res and an 18w D5 pump to cool my 7950 and my 3570k.... I'm pretty sure thats going to be enough to cool the whole thing, but my question concerns my loop.

what i was planning on was going pump -> rad -> rad -> gpu -> cpu -> res. But could i split my loop off after leaving my pump and go from pump to both rads at the same time and then from one rad go to the gpu and cpu from the other, then from both the gpu and the cpu to the res then one outlet from the res to the pump again.

Thanks

apeksdiver · 12 Jun 2013 at 21:30

I would not recommend that, you would find different resistance within the loops which could cause havoc with your pressures. If you want two loops your better off running two pumps.

Jokester · 12 Jun 2013 at 21:34

There are flow restriction benefits (ie less) if you put two identical radiators in parallel with each other, but splitting your flow between the CPU and GPU after that as well isn't a great idea. Realistically though, the D5 will have more than enough grunt for everything in series.

The Only Beardy · 12 Jun 2013 at 22:57

Thanks guys. I do understand that parallel is probably better, but if the D can deal with a series setup then maybe I'll spend the extra ££ and get enough tubing to try both. Then i can see which is guna look/cool/fit the best.

Thanks guys.

I guess then another question is which water block would you suggest for a 7950... the only ones on the OC shop are the 7970 block and backplate... I think the 7970 block will fit the 7950 but the EK backplate is for the 7950 :/ which i dont fancy...

andybird123 · 13 Jun 2013 at 10:28

as above - putting the CPU and GPU in series will tend to mean that the water will take the path of least resistance which will be the GPU block - you'll get wicked fast flow through the GPU block and reduced flow through the CPU block, which is the opposite of what you want

by all means parallel the rads, but I would come back together and keep the CPU and GPU in series