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Crossfire fan speed problem

post #1 of 11
Thread Starter 
Whenever one of my GPUs exceeds 90c, the fan speed fluctuates rapidly between 100% and 53%. In Trixx I had it set to be fixed at 100%.

Also after it exceeds 90c the GPU usage declines from 99% to 60%.

Help?
post #2 of 11
Sounds like it's overheating and the card is protecting itself from burning. You don't really want it hitting 90C anyways.
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post #3 of 11
click start

type regedit

press CTRL + F

type ulps

modify value to 0

go into afterburner / ati overdrive and crank up fan speeds on both cards. that works for me
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post #4 of 11
90c is quite high, but it is still sustainable (though in summer time, I'd rather best avoid those temperatures).

You can try possibly applying TIM on the GPU. My stock 6970s (before) were only running at around 73c with a 50% fan speed. Another way is to grab cool air from the outside of the case and blow it in directly to the fan where it grabs the air and ventilates out of card.

Or the person above is right as well !
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post #5 of 11
Thread Starter 
I already disabled ULPS. The thing is that in a single card configuration, the cards keep going when it hits 90c.

Only when I enable crossfire it starts acting up at 90c.

What I'm more concerned about however is the random fan speed fluctuation between 100 and 53%.
post #6 of 11
Fan might be dying, which would explain the fluctuation and the high temps, it happened on my card.
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by thealex132 View Post
Fan might be dying, which would explain the fluctuation and the high temps, it happened on my card.
Could be a possibility. I might have to RMA, depending on if XFX thinks this is a valid reason for RMA...

But the fluctuation only occurs at a certain GPU temperature. The fan works fine at any temperature below 90c.
post #8 of 11
Quote:
Originally Posted by kiwiasian View Post
Could be a possibility. I might have to RMA, depending on if XFX thinks this is a valid reason for RMA...

But the fluctuation only occurs at a certain GPU temperature. The fan works fine at any temperature below 90c.
Set it manually to lets say 60% then and see what happens
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post #9 of 11
Thread Starter 
Quote:
Originally Posted by thealex132 View Post
Set it manually to lets say 60% then and see what happens
Same thing...
fluctuates rapidly between 60 and 53..
post #10 of 11
Quote:
Originally Posted by kiwiasian View Post
Same thing...
fluctuates rapidly between 60 and 53..
Set it to 100% and then try to feel with your fingers if the actual fan is fluctuating between 100% and 53% or if the software reading it is wrong
(This has also happened to me, apparently my fan runs at 1000000000rpm )
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Illya
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