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CF/SLI loop build recommendations.

post #1 of 13
Thread Starter 
Hello all,

lately i moved to new case (CM ATCS 840), which made me desire to cool my GPU's, for now i have GTX 285, in the near future i will move to CF with HD6XXX card (probably 6870 or 6950).

i addition to the system that i have now (signature), i want separate loop for two GPUs. the loop need to get inside the case, i will locate it in the bottom (between the psu to the HDD cage).

my biggest problem, is that i want to have minimal loop "size", do you think that good single 120mm radiator pull>push can handle CF array ? or i will have to go on dual radiator ?

the build that i think is:

single/dual radiator (XSPC RS ?)
DDC 355+EK X-TOP REV 2 TOP
1/2 ID 3/4 OD
minimal water tank

i will get to the GPU's blocks latter, as i don't have the cards yet.

regarding the pump, what will be the best, DDC 355+EK X-TOP REV 2 TOP or the new Swiftech MCP35Xâ„¢ 12 VDC Pump ?

thanks head
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post #2 of 13
if you going to do multiple highend cards start with at least a 360mm rad
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post #3 of 13
Idan
If your gonna go with the medium Yate's as you did with the CPU loop then I would go for an RX360, if your abit tight on the budget then you could go for an RS360 but in that case I would go for the high speed Yate's...
As for the pump its quite simple, an MCP35X is more or less equal to a DDC+Top therefor just go for the cheaper part since they both will do the job with ease...

Edit:
Just noticed that you'd rather not go for a triple, in that case it really depends on the amount of tolerable noise, a BI GTX240 attached with atleast 1850 GT's could do the job but your gonna compromise on the noise.
Edited by jclark - 3/8/11 at 6:09pm
    
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post #4 of 13
single/dual radiator (XSPC RS ?)
DDC 355+EK X-TOP REV 2 TOP
1/2 ID 3/4 OD
minimal water tank

You really want a 360rad for 2 gpus. But that also depends on how much you are gonna oc them. If you are gonna max out the cards then you wanna look at 360 or 480 even if you are going to add a 3rd card. As for pumps a 655 can easily handle a gpu only loop and its much quieter than the 335. Aslo you can just use a T-Line to fill/empty your loop if you dont wanna use a res.
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post #5 of 13
Thread Starter 
i limited to dual radiator, there is possibility that two single radiator (pull>push) will handle it ?

for example:

TANK>>PUMP>>RAD>>GPU>>RAD>>GPU>>TANK
or
TANK>>PUMP>>RAD>>RAD>>GPU>>GPU>>TANK

?
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post #6 of 13
If anything am240 in push/pull will give you the best result but a 240 I cant say it yo would have god temps with just a 240 your really do need a 360 or another 120 on top of the 240. You might be ok with sli gtx 285's but if you upgrade to the 6870s or 6950's your temps will be on the high side.
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post #7 of 13
Quote:
Originally Posted by TAOTAO161 View Post
i limited to dual radiator, there is possibility that two single radiator (pull>push) will handle it ?
What are you limited by? An expensive rad with push/pull is practically a 120mmx120mm brick.

For GPUs, my experience is 2x120mm of radiator per GPU will keep things cool. Any less and your system will be sensitive to room temperatures. That is a big case, find space in it to make it work!

How to fit a bunch of radiators in an ATCS840
     
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post #8 of 13
Thread Starter 
I don't want to cut thing up, so i looking for the best mach, i check the DT and see that if i will use two single radiator i will need high rpm, what is to noisy for me. i will see what i can do, maybe i will get only one card
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post #9 of 13
I would combine your CPU and GPU loops together. You'll get excellent temperatures even with only using that single 360 radiator. If you had some spare cash you could pick up another 120mm radiator and add it to the rear exhaust. Then you would have an excellently performing loop and cash left over for other upgrades (start saving for IVY bridge).
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post #10 of 13
I agree with charlie, with both rads (lets say a 240+360) you can get around a 10c delta...
    
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