CPU + Mosfets or CPU + GFX under water?

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I've just bought (so already have these parts) the Asus Rampage II Extreme, Core i7 920 DO, Asus Ati 5870, + the rest of the system.

I've got the Swiftec block for the CPU, along with the Swiftec pump, and XSPC RX360 radiator.

I've also got the EK mosfet water blocks for the motherboard, but am wanting the GFX card water cooled aw well. Am I best leaving the mosfet blocks out all together and just going for CPU and GFX with the parts above? Would adding the GFX block to the CPU and Mosfets compromise the temperatures too much.

Obviously this should have been asked before buying the parts, but it's done now :)

Any suggestions would be great. Also I've not got budget for a second loop for the gfx card alone.

Cheers

Nick
 
well i never see the point in doing anything more than just the cpu and gpu really,those two are the main ones that need doing the rest just makes it more arkward,you can run the cpu and gpu on one rad check my thread in my sig for ideas on how it was done,everything else looks good,by all means you can do them but then i would have another rad in there,a lot will say to have the cpu on it own loop but to be honest my setup was not even getting hot at all max temps was i think around 63 if that idle at 28-30 and quite as a mouse
 
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Thanks for the reply!

Think I'll leave the mosfets then, I've got the 1/2" compression fittings so had already decided using the 1/2" tubing in that tight cpu / mosfet area was going to be a struggle.

Cheers!
 
Don't leave the mosfets out!

I have a system right here with the cpu and graphics watercooled. The damned thing is unstable at 4ghz without a fan aimed at the motherboard, because the board overheats. I don't know whether it's the mosfets or the chipset, but since the mosfets throw out the most heat, watercooling them is the way to go regardless.

If you're worried about flow rate, the mostfets wont need much. You could split the flow in parallel between them, just have a Y before and after the block. Let me know if you find a cheap Y piece, otherwise we'll both be using Ts for this purpose.
 
It's more of the knock on effect of the extra heat in the system than the flow rate.

Just had the board out and been seeing how to make the pipes fit without needing too tight a bend on it. Would be easier with 3/8" tubing, but I'm sticking with the 1/2" :)

Need to order the 5870 block yet as they have only just come out.
 
I don't think they add all that much heat to the loop actually. Nothing close to what a processor or graphics card do at least. They're fine in mine with any airflow at all, it just happens that they had extremely little when the only fans had radiators over them.

1/2" tubing and connecting mosfets and cpu together is a challenge. It's going to do my head in with 11/8mm. Y pieces might make routing easier as well thinking about it.
 
I got mine routed as below, I'm running the below and even have the NF200 chip on my board which is supposed too add 15 - 25w of heat into the loop as well, on a PA120.4 and max load temps @ 4.2ghz after 9 odd hours of priming was 72c so definately don't add too much heat into the loop.

As Jon has said they they do need active cooling over them, you already have the blocks so why not add them in! Will have fun trying to find the neatest tubing for it though (I'm running 3/8" 5/8" tubing by the way)

DSC_0157.jpg


paulstest.jpg
 
Thanks everyone.

Just been looking at the compression fittings with a 45deg angle which will sort out the 1/2" tubing issues :)
 
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