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580's in SLI cant keep cool enough?

post #1 of 12
Thread Starter 
I've got a pair of Zotac AMP 580s and they dont seem to be able to keep themselves cool enough with the hardware auto fan control. At first I thought it was a Crysis 2 issue (first heavy graphics game I play on them since I got them), but it turns out it isnt.

What I see looks like un-vsync'd white blips on the lower half of the screen occasionally. I fired up Metro 2033 and played it for a while, and sure enough, it crops up after the cards have time to heat up(~75C). A good benchmark for this I found was to play the game from the beginning to where the big rat things run around you in a circle. By that point, you can tell if they're cool or not.

Using Afterburner, I set the clocks back to factory settings, tried it again, same issue.

If I set the fan speed manually, to say, 70, everything is fine. Also, I used the Afterburner default user defined curve, and that works fine as well.

Is there something wrong with these if they cant keep themselves cool without having to resort to software fan monitoring? Seems like the 70s range should be well within their temperature range and the case has TONS of cool airflow. I havent had this issue with any other cards I've ever had so its got me a bit worried.

Thanks.
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post #2 of 12
I experienced my card throttling itself down for the first time tonight , i used EVGA precision to increase my fan speed, i dont have SLI , just a single, but the default fan settings are not enough at all. On default the cards go past 70c easily .

On load from what i have read the 580 can operate at 80-90c just fine. I doubt the minimum fan control keeps them at 80-90c on load though.
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post #3 of 12
Thread Starter 
Well, I didnt know that afterburner could output to my logitech keyboard screen. I just re-ran my metro test on stock auto fan control, GPU1:84C and GPU2:81C is where the temps level off, but thats right where the artifacts happen.

Is there a way to change the hardware fan control curve? I dont want to waste extra cpu cycles monitoring GPU fans if I dont have to...
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post #4 of 12
I dont have any problems with mine on air, fan is on auto and doesnt need to ever go over 30%, most hottest ive seen my top card is 67c bottom card is usually about 58-60 ish.
post #5 of 12
Try to put the first card in the PCIE-slot 1, and the second in PCIE-slot 3, if you hadn't.
Will give them enough room to suck in air.
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post #6 of 12
Thread Starter 
Quote:
Originally Posted by Defoler View Post
Try to put the first card in the PCIE-slot 1, and the second in PCIE-slot 3, if you hadn't.
Will give them enough room to suck in air.
They are already set like that. Nothing is blocking the fan intake either.
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post #7 of 12
why not using waterblock?!
post #8 of 12
Quote:
Originally Posted by p3gaz_001 View Post
why not using waterblock?!
It looks like he only has an H70, which is a CPU-only water cooling solution. He doesn't have a rad or pump to use with a GPU waterblock.
post #9 of 12
ok, well he should think about a liquid cooling system for his combo 580amp
post #10 of 12
Max temperature is 97c, shouldn't be worry much.
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