Water Cooling Question

Activ8

Activ8

Activ8

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14 Jun 2011
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68
I have purchased the gear ready for my new build (see Sig). I will be cooling the CPU and GPU using one loop with a XSPC RX 360 Radiator.... the question is:

Will this be sufficient to cool both the i7-2600K and Sapphire HD 6990 using one loop?

If so, which direction of flow. Should it be:

1. Res/Pump -> GPU Block -> CPU Block -> Rad -> Res/Pump
2. Res/Pump -> CPU Block -> GPU Block -> Rad -> Res/Pump
3. Res/Pump -> Rad -> GPU Block -> CPU Block -> Res/Pump
4. Res/Pump -> Rad -> CPU Block -> GPU Block -> Res/Pump

Or should I split the flow through a Y connector to both the CPU and GPU so that they are both getting equally cooled fluid? Although on that note I do understand that the liquid will choose the path of least resistance so one block may get starved of coolant.

Thanks in advance.
 
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I have used the last option in past builds, my current build is only a cpu loop. cpu fed directly from the rad.
 
I suppose that would be best in any situation really as the coolant is being cooled prior to being fed to the waterblocks.

See I'm learning stuff every day! :)
 
Loop order doesn't matter long as the res is before the pump, a single 120.3 rad wont be enough really, either at a single 120mm at the back of mod the lower chamber to hold a 120.2.
 
mjones1 said:
Loop order doesn't matter long as the res is before the pump, a single 120.3 rad wont be enough really, either at a single 120mm at the back of mod the lower chamber to hold a 120.2.
Click to expand...

The Rad i'll be using is an XSPC RX360 which has 3 rows of 13mm by 2mm Tubes, so unlike the cheaper versions the coolant spends more time in the radiator being cooled. I'm a bit reluctant to add a 120.1 in the bottom of the rig unless temperatures dictate otherwise.

The pump that I'll be using is a MCP355 Laing DDC-pump 12V DDC-1Plus 18w with a XSPC DDCRES 200ml Laing DDC Top Reservoir... Just FYI

It looks as though I'll have to "suck it and see" when I start the build next week.

Thanks
 
Personally I think you'll be fine, I don't know how much heat a 6990 adds but I have a i7-2600k @4.5Ghz under water with the crapper RS240 rad, it is running folding@home 24/7 so constantly under load and the temps are in the low 60s, fans are on low as well.

Like you say you can always add a 120 in later if necessary.
 
I run 2 120.2 RX rads in a Res/Pump -> Rad -> CPU Block -> Rad -> GPU Block -> Res/Pump loop and it works great so with a 120.3 rad u will have similar if slightly higher temps so should be fine.
 
Well I'm not too sure what happened there but quite a few posts were deleted....

Someone been naughty?

Thanks for the help to the ones that were sensible with their replies. I've learned a few things since I've joined and been reading the threads around here. I'm sure I'll not be disappointed with my build since my old PC is nearly 6 years old and based on an air cooled AMD Athlon 64 4000+ socket 939 Processor with an nvidia 7800GTX and 2 gig ram.

Roll on the next week.
 
I see.... Just checked the previous posts and it's all clear now.

I will take step by step pics and attempt to document it in the forum for others to "learn" from. Not that the old hands will learn from this.... Hopefully it just helps!
 
I wouldn't be so sure that a 360mm rad will cool your i7 and your 6990 - the 6990 especially will put out a lot of heat. If it was me, I'd want at least a 240 in addition.
 
zulu9812 said:
I wouldn't be so sure that a 360mm rad will cool your i7 and your 6990 - the 6990 especially will put out a lot of heat. If it was me, I'd want at least a 240 in addition.
Click to expand...

Well I will try it and see what happens. If it does not prove to be efficient in cooling the whole system I will have to then purchase a 120.2 to add into the cooling loop. I'm sure the 800D can cope with this.
 
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