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Radiator advice

post #1 of 18
Thread Starter 
Hi fellow OCNers!

Quick question. Im building a single loop to cool an AMD x6 and 2 gtx480s in SLI. For cooling the loop, I have been flirting with doing 2 radiators. Both single 120mm. I was thinking of putting one on the back and the 2nd radiator on the side window. Will this be enough to cool these components? Would I be better off doing a single radiator with dual 120mm fans mounted outside of the back of the PC? Lastly, would I need dual pumps in a 2 radiator setup? Leaning towards the MCP655.
Thank you so very much in advance! You are all the best!

Bobby

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post #2 of 18
Two single 120mm radiators each with one fan will not be enough. One 120mm radiator with two fans will not be enough. You don't need two pumps.
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post #3 of 18
you will need at least one 240mm rad per 480 and another 240 for the cpu. This is just a conservative guese though.
    
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post #4 of 18
madworld how about telling him what he needs instead of telling him hes wrong. jeez.

if you want a single rad a 480 rad would do it,. if you want 2 rads i would go with one 240 and one 360 or 2 240's. but 2 120s will not do it
post #5 of 18
I love how the uninformed make recommendations....

OP. You have a few choices. You can actually cool the whole setup on a single high FPI 360 radiator with high rpm fans such as HW Labs BI GTX 360 using 3000+ RPM fans. Honestly tho I always say 1.5 x 120mm radiator area per gtx 480 and 2 x 120mm radiator area for a cpu in order to run 1400-2000 rpm fans (so it doesn't sound like a wind tunnel). Your best bet will be to go with a 240 rad and a 360 rad (either the XSPC RX series if you plan to run ~1400 rpm fans or the HW labs BI GTX series if you plan to run 1500+ rpm fans). You are not cooling that setup on two 120 rads. It's just not happening unless you want to run 5000 rpm fans.
 
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post #6 of 18
Thread Starter 
Wow that just shows how noob I am with water cooling. Thank you so much for your recommendations. I will plus rep you when I get off my phone. If anyone else has input please don't hesitate! Thank you all so much again!

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post #7 of 18
Thread Starter 
It looks like im gonna go the high fpi 360 way. What do I need to mount it outside the back with a big enough gap to plug everything in without clearance issues. Is it a radbox? I want it pushed 4+ inches off the back of the pc. Is there a bracket?

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post #8 of 18
The only bracket I can think of that will get even close to that far away is the Koolance BKT-HX001.
bkt-hx001_tcs2.jpg
post #9 of 18
I would look into the SR-1 rads and agree with everyone on the amount of rad space needed.... overclocked 480s can get real hot but your CPU shouldn't be a heat concern

If you have the room I think a 360 and a 240 would work best, put the 240 after the CPU before the cards to cool the water before it hits the cards.
I will be doing that with my SR-1s.
post #10 of 18
Thread Starter 
Thanks ratdog. That is perfect! Thanks for the info nick. My concern with running 2 big radiators like that is mounting. My only open space for mounting ones bigger than 120 is outside the case in the back.

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