halp with my wc build

[iddqd]

i decided to cool my i7 860 and HD5870 with a single loop.

I'll most likely use a Y-splitter, as opposed to a tandem configuration.

Planning to use one Laing D5 pump (Swiftech MCW655, etc..), Feser 3x120mm rad and a full-cover block for the 5870. Most likely EK, but I haven't really looked into this yet, either.

I'm wondering if a single D5 will be enough. Right now I have my sights set on EK Supreme High Flow cpu blocks, since they seem to perform okay, and have... well, high flow. Allegedly.

Anyway, I didn't buy any parts yet, so feel free to suggest whatever.

[woffen]

A single D5 will be plenty. Though I would suggest to skip the Y-splitter as it won't give you any better performance.

[iddqd]

last time i did tandem, the GPU ended up being way hotter (about as hot as it was with stock cooling, actually..), as it was in the loop right after the CPU. Hoping to avoid that.

E: 1337th post.

[Blauhung]

If you split your flow, the flow rates in the CPU and GPU blocks will be about half and because of this the heat transfer efficiency will be a lot lower

[iddqd]

I see. CPU first in the loop, then?

[SugarJ]

CPU before GPU in the loop. +1 on the EK block on the GPU. They're the best brand I've used.

[woffen]

Loop order shouldn't matter that much except the golden rule of having the res before the pump feeding it. Other than that go with the "plumbing" that gives you the shortest loop.

[iddqd]

Loop order shouldn't matter that much except the golden rule of having the res before the pump feeding it. Other than that go with the "plumbing" that gives you the shortest loop.

I see. Well, in that case, what CPU waterblock best suits multi-block loops?

(for example: word on the street is the swiftech blocks have killer performance, but only if you have high pressure, so they're not very suitable for multi-block setups)

[H2O]

Swiftech XT, Heatkiller 3.0, and EK Supreme HF are all similar performers, so the decision is basically which one you like better.

[Kurz]

Swiftech XT, Heatkiller 3.0, and EK Supreme HF are all similar performers, so the decision is basically which one you like better.

+1

Go for the one that has a good mounting system (Hk's stock mounting is a bit... dated).
I got a HK3.0 you have to be pretty precise to get a good mount.

[SoulsCollective]

HK 3.0 and Supreme HF both have good restriction characteristics and won't hurt flow-rates too much. The Koolance CPU-360 is also supposed to be good going by what limited commentary we have so far, but I wouldn't trust it to be free-flowing after seeing the previous CPU-350.