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GTX480 enough for CPU and SLI? - Page 2

post #11 of 18
Your going to want a 480 for those. I got a quad and heavily overclocked 3870 on a 360 and that's about the limit (at least I for what I want).
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post #12 of 18
yeah, just take the 480, its not much more expensive and if you cant fit it anywhere just make a stand like ira.
post #13 of 18
Quote:
Originally Posted by Clinic View Post
Going to be doing the same thing here, only instead of SLI its 2 of these super hot 4870s, a quad at 3.8, and instead of a 480 its a 360. Sorry to thread jack, but think I'd be okay?
Here is my 2C quick and dirty radiator design guide.

1) Figure out your heatload, use this to estimate power consumption. Actual heat load will be a little less than this, but close enough:

http://extreme.outervision.com/psucalculatorlite.jsp

2) An extreme performance level "In my opinion and I think Ira agrees with me" is a 5C water to ambient delta. Follow the heat load you figured out above up until you start crossing the fan lines, preferrably you want something that crosses under 5 degrees for high performance, under 10 degrees for average performance.



Enjoy!
    
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post #14 of 18
Quote:
An extreme performance level "In my opinion and I think Ira agrees with me" is a 5C water to ambient delta. Follow the heat load you figured out above up until you start crossing the fan lines, preferrably you want something that crosses under 5 degrees for high performance, under 10 degrees for average performance.
Oh Yeah,I agree with that a 100% Martin...A OC'ing rig should be shooting for 5C and under rad out to ambient....I'm at a 3C rad out with a 600W load and to be truthful it really bugs me being that high, I used to be able to hold it around 1C with plain WC'ing, TEC's just throw out a lot of heat....

You get up around a 10C rad out and there are HSF's that are close to that level...
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post #15 of 18
Quote:
Originally Posted by ira-k View Post
Oh Yeah,I agree with that a 100% Martin...A OC'ing rig should be shooting for 5C and under rad out to ambient....I'm at a 3C rad out with a 600W load and to be truthful it really bugs me being that high, I used to be able to hold it around 1C with plain WC'ing, TEC's just throw out a lot of heat....

You get up around a 10C rad out and there are HSF's that are close to that level...
That's what I was thinking even though many of the radiator curves are posted at a 10C delta or even higher..
    
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post #16 of 18
I know it, thats kind of the standard isn't it,10C, it just lets them double up the wattage rating on them...But to be fair at that time WC'ing and air cooling wasn't advanced to the stage it is now...

But I think shooting for a 5C rad out is a real fair point for a good WC'ing rig, I know you do to, thats not extreme at all I don't think....
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post #17 of 18
GTX360 keeps my 8800GTX SLi and Q6700 @ 3.6ghz at the following temps....

Q6700 = around 40C load (for all 4 cores, F@H)
8800GTXs = GPU 1 is 50C / GPU 2 is 40C (Crysis on MAX with Ultra High config in DX10)

So, Im asuming a GTX480 is a better version then the GTX360 - so I'd say 100% yes, it'll do just fine.

I'm using a Vario with an XPSC normal top on it, it pumps really really good judging by the flow of water in my res.
Edited by OmegaNemesis28 - 7/6/08 at 7:28pm
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post #18 of 18
Most definitely. I'm cooling my setup with 8 120mm medium CFM Yate Loons and I get great temps with heavy OCs on the GPUs and CPU. I have the GPUs overvolted too....
30-33C idle on the GPUs, 42-48C full load in games
32-35C idle on the CPU, 48-51C full load in Prime95
20-23C ambient
I can't complain one bit.....

Oh yea my GTX480 is hanging off the back of my case using a Swiftech Radbox.
Here are my fans...........very quiet and functional.
Edited by binormalkilla - 7/6/08 at 9:54pm
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