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Dual GTX470 SLI

post #1 of 10
Thread Starter 
So I wanted to put my CPU and 2 GTX470's under water. Currently I have a 360 rad which does a good job on the temps of the CPU and 1 GPU, however, I am wondering if the additional GTX470 would push it over its limits?

I have a pretty small case and the 360 rad is external and so there is really no place left to put another rad unless anyone has any good ideas on getting another rad externally?
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i7 950 Gigabyte X58A-UD3R GTX 470 WC AquaGraFX block Corsair Dominator GT 1866 
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SSD 32GB Blu Ray writer Win 7 x64 Ultimate Sharp Aquos 46" 
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post #2 of 10
which rad do you have? most will do fine if you go both gpu under water
post #3 of 10
You could mount it with a swiftech rad box. Depending on your rad and fans, you should be able to cool them with a 360 rad.
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post #4 of 10
Thread Starter 
I have a Blackice GT 360 rad.
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My System
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i7 950 Gigabyte X58A-UD3R GTX 470 WC AquaGraFX block Corsair Dominator GT 1866 
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SSD 32GB Blu Ray writer Win 7 x64 Ultimate Sharp Aquos 46" 
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post #5 of 10
it'll do the job, though you might want to consider upgrading to a thicker rad or adding an additional rad. the gf100 (gtx 465/470/480) are notorious fire breathers
post #6 of 10
Quote:
Originally Posted by birdy123 View Post
I have a Blackice GT 360 rad.
this can do the job
post #7 of 10
What are your current temps of the 470, and what type of radiator?

It should be fine, but you migth lose some OCing options because of the extra heat.

Edit:
GTX360 rad should be enough as long as you have good fans for it.
Edited by Defoler - 1/11/11 at 1:25am
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post #8 of 10
I am caught in this dilemma..
I have two radiators,
sorry op for side lining your thread.
I have two radiators in a single loop cooling mobo, cpu and gpu and I am gonna either sli my GTX 470's or get a 580.
I want the sli option cause it'll be a better performer.
Anyways, I have a MCR320 and a MCR 240 radiator w/ some HS yate loons and I honestly think my radiators aren't enough for the extra GTX 470.
I may get a thicker radiator such as the BIX 360 which I've been told is a great radiator, but that leaves not much to think about with the other radiator.
So I may just dual loop with what I got but push/pull both of them with the same same HS yate loons.
With that said, be open for spending, and crazy options just to tame them....

I would if you can.. get a push/pull fan configuration going if you can and if money permits. Like the guy said before me... It WILL hinder the overclock headroom you will have.
See how that goes then...maybe you can expand...This hobby of ours is crazy.. We spend so much on cooling out pcs!!!
v1ral
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z97 RIG
(15 items)
 
Apophis
(18 items)
 
 
CPUMotherboardGraphicsRAM
4790k MSI z97 Gaming 7 Gigabyte G1 Gaming GTX 970 G Skill Ares 16gb 
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Crucial MX100 256gb Seagate Barracuda 2tb Corsair H70 Windows 7 Pro 64bit 
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Core i7 920 D0@ 4.2 1.25625 vcore EVGA Classified 760 EVGA GTX 470 SC+ EVGA GTX 470 SC+ 
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Corsair Dominator GT 1866 3x2 gbs 1TB Samsung Spinpoint Lite-On DVD drive EK Supreme LTX Water Block 
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post #9 of 10
The main problem I see is the pump. Those Aquacomputer waterblocks are ridiculously restrictive, at 1.0 GPM they required 3.02 PSI of pressure! Compared to the EK waterblock that only required 0.87 PSI and the Danger Den that required 0.29. Even an MCP 355 + XSPC Top can only put out 7 PSI at 1 GPM, so if he had two graphics cards it would only leave 1 PSI for the CPU, radiators and tubing.

Running the blocks in parallel would be the only way, and even then it will still be adding more resistance than a single EK block.
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post #10 of 10
I run two 470's and an overclocked 920 with a 480 radiator (only three fans though, didn't mod my case, yet) and my temps are definitely decent. 30c idle and about 40-45c in load. Not perfect but I'm no perfectionist. I've got a pretty large reservoir though.

http://www.overclock.net/water-cooli...e-corsair.html

There's my build.
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