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GTX 480 SLI - one card is idling at 75c...

post #1 of 18
Thread Starter 
Ok guys, usually both cards idle between 40-50c and lately on random times one of the cards idle at mid 70's.
Is this a driver conflict? I have heaps of air flow going to both cards and have a fan at the back of them feeding air.

How do i fix it


...inb4fermijoke...
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post #2 of 18
70c idle... That's no joke I would RMA if you don't find a solution.
    
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post #3 of 18
Go into the Nvidia Control Panel and make sure Power management mode is set to Adaptive. I used to have mine on Prefer maximum performance but I noticed it idled at 71 C and mine is just a single card! With it set to Adaptive it idles at about 45 C and it hasn't noticeably affected game play.
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post #4 of 18
If your card has 2 monitors connected to it that's whats doing it and it's nothing to worry about. The only real concern is if your load temps are over 95ish.
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post #5 of 18
ajw has the right idea here.

Can you see the clock speed at idle? when I was running dual cards, sometimes one would be stuck at the "3D in use" clock speed rather than the idle clock speed, which significantly increased the GPU temp. On ATI cards theres something similar, 3D, 3D low-power, and 2D low-power.

For reference numbers on the 2 clocks, my 3D Core clock is OCed to 700 MHz, Shader at 1401, Memory at 1848 (924x2). At idle, it goes down to 405, 810, and 324 respectively.
    
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post #6 of 18
Thread Starter 
Ah you guys are all on the gold mine.
I only have one monitor.
Top card is at 3D clocks, bottom is at 2D.
however "power management" is already set to "adaptive"

Nvidia has betrayed me
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post #7 of 18
Some sage advice, adaptive for general use, may set it to PowwwAAAA for a game profile though...

I would also be sure that any fans you have added are helping rather than changing the air pressure enough to stall airflow from getting to the card HS itself, especially on card 1, being its parked right behind card 2... and as such, draws in heated air from the back of the board.
 
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post #8 of 18
what are your load temps with say, a DX 11 game like metro 2033 or BFBC2?
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post #9 of 18
Thread Starter 
Yea i have a low speed 80mm at the back.
The funny thing is, both cards used to idle around the same temp, top card would sometimes be a little hotter so im assuming they both kicked into 2D clocks.

What confuses me is why one of the cards is sticking with 3D clocks
Quote:
Originally Posted by Maxxa View Post
what are your load temps with say, a DX 11 game like metro 2033 or BFBC2?
I'll run 3Dmark11 in a minute and let you know
Edited by Mr OCN - 3/6/11 at 5:05am
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post #10 of 18
Quote:
Originally Posted by Mr OCN View Post
Ah you guys are all on the gold mine.
I only have one monitor.
Top card is at 3D clocks, bottom is at 2D.
however "power management" is already set to "adaptive"

Nvidia has betrayed me
the driver must be thinking something is using dx/cuda... which is possible considering all of the new apps out there that are CUDA accelerated. Try quitting some apps? Adobe Flash, Acrobat... even firefox 4 beta has CUDA integrated.
    
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