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4870 crossfire

dust

dust

Golden Member


Hi guys, I just noticed today that my cards are running at different temps. Whilst this might seem normal as the crossfire is probably enabled during heavy load, the difference is about 14c. The primary card idles at 40-41c whilst the second one starts from 27c only.

I have checked in the catalyst and the fans are set at 40% for both of them . Now the 41c doesn't seem scary to me, pls correct me if I'm wrong, I'm just puzzled by the difference. I ran the gpu-z and checked the log file after playing for several hours and the temps never went beyond 55c.


Any ideas?
 
Could be. There are actually three 120 mm fans on the removable side of the case and two of them are cooling the cards. How abt the temp value, is it high at 41c idle/55c under load?
 
Those temps are fine. You could try to swap the card locations to see what happens with the temps. Whether the air flow is being obstructed by one card for the other, or it's just the way the particular card runs. Your temps are fine though.
 
Sorry guys, it took me a while to do the swap, but now that I did that, the second card became primary and is still running cooler than the second one. . The difference is the same as before. So basically it seems to be a card related issue. The fan is set at 45% for the first card and the idle temp is 25-27c, whilst the second one has the fan set at 55% at it reports temps above 39c. Now I don't know whether to be "proud" or scared by this as it seems logical for the sensor of the first card to report wrongly the temp.
 
I wouldn't worry about it at all. ATI/AMD says those cards can run as hot as 110C. So the fact that under load yours are both at half or lower of the "max", is a good thing.

I'd sit back and enjoy them running so well.
 
Same problem here but not to the extent you mention. I have two 4850's and the top one is around 5-10C warmer.
 
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