help with rads and res/pump combo

skinneyb

skinneyb

skinneyb

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Joined
17 Feb 2011
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185
hi all i have a 800d case and want to put a 360 rad in the top and a 240 at the bottom will be cooling a gpu in sli/cross fire cpu and mb would like to no what make of rads would you suggest and is this enough rad to keep it cool also after a res and pump combo to save on space what do you guys recommend as i dont no how much on res pump combos as the rig i had before was just cpu and gpu with 2 x 240 rads i had a separate pump to res before but want a res and pump combo for the above reasons as long as there is one up to the job

kind regards

look forward to taking on board your ideas
 
firstly need to know what processor and graphic cards installed as well as overclocks applied

for example my last wc build had a 2600k @ 5ghz and 2 x 570 gtx @ 1GHZ using 1x480 and 1x 240 was just enough to keep temps down enough and this was with 120 x 38 fans

Cpu temp and graphic cards never went above 60C in daily use
 
Lets assume you're going for a pair of high end GPUs (overclocked) and an overclocked i7. With this setup, under high gaming load, you can expect to dump about 500W or so of heat into the loop (perhaps a bit more depending on the GPU overclocks).

Using skinnee labs testing data for a the XSPC RX360 (as an example), and scaling up from 3 to 5 to represent the extra 240mm rad, you can expect something like:

10C delta at 800rpm fanspeeds
7C delta at 1200rpm
5C delta at 1700rpm

(delta meaning the difference between air temperature and water temperature).

Getting a delta of <10C is a good target, so with a 360 and a 240 you can expect to get good performance with low fanspeeds. Even leaving a fair margin for error, I'd say that your radiator combination should be plenty enough to get high-performance silent operation - so long as you get a decent pump.
 
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