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CF 290 + CPU loop, will my radiators will keep temps low enough?

post #1 of 6
Thread Starter 
I already have that WC setup :

Pump :mcp35X

Res: bitpower Z 150

Rad: EX 140X3 + EX 140X2

cpu block: XSPC raystrom

Gpu block : 2X mcw82 ( to be replaced with 290 razor full cover)


my actual system is a 1090T oc at 4.3 @ 1.55V and 2 6950 unlock and OC and the temps are CPU max 35C , both gpu max 44C. I have plenty of cooling for the 6950 right now but the 290 look like burning lava and its get me worry. I wonder if I should try to fit another rad inside?

my goal is to keep the gpu under 55C a least

I never finish my case mod I start a while ago but intend to finish it before installing the 290 CF so its now or never, once I finish it up, there no more rad going inside the case, its already pretty full with all that, I dont even have space for HDD or DVD , only ssd on my system.

So if you are cooling cf 290 with similar rad lets me know what temps you have please.

ps: Yes I know my cpu is old and will probably bottleneck and I will change it soon
I7 6700K
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I7 6700K
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G.Skill Ripjaws F4-3200C16-16GVK Samsung 256 830 serie Custom Water Loop , 2 GPU block , 1 CPU block, ... Win7 64 / Win 10 64 
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3X LG 24 inch (2ms) Logitech G11 XFX 1250W  Bitfenix Shinobi XL modded 
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post #2 of 6
Uh, i think is a close call. An R9 290 runs at 100C and you also have the 1090t which is hot too. For me, to feel safe and overclock good, i prefer rigs with a 240 rad for each GPU especially r9 290 chips.

If you have yours on a pull push you'll be ok
Edited by fedrosishere - 12/1/13 at 9:07am
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post #3 of 6
You'll be perfectly fine. 5x140mm worth of radiator is a whole lot of rad.
Big Lian Li
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post #4 of 6
it is a lot, but remember that ONE r9 290 runs at 100C.... So just imagine two of em. Also the old CPU is a factor here. as i said.. a 240 rad for each component(GPUs, CPU ,) is perfect IMO.
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post #5 of 6
They run @ 100C because they have an inefficient cooler.

Just an FYI but 5x140 has substantially surface area than 6x120, about 13% more.
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Big Lian Li
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post #6 of 6
Quote:
Originally Posted by lowfat View Post

They run @ 100C because they have an inefficient cooler.

Just an FYI but 5x140 has substantially surface area than 6x120, about 13% more.


Agreed. My 290X with accelero extreme III OCed to 1150/6000 runs low 30's idle and middle 60's while gaming. Water cooling should do way better than any air cooler. That just shows you how bad the stock cooler really is.
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