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[KrazeeXXL]

Originally Posted by Japo

At any rate when I had the case open I touched the copper heat sink and it felt really hot, which is good. It would be bad if the circuitry were hot but the heatsink weren't.

true

Originally Posted by Japo

Right now I have closed the case again, with no activity whatsoever I have around 50º C (ambient 20º). Enabling double desktop and reproducing a video raises it to around 76º and the fan spins at around 15% (over the minimum), but I haven't had the problem again. These 76º C are below the middle of the temperature gauge shown in Catalyst, not in the red or orange, as if it's a safe value.

well it's still high. I think the Automatic Fan Control of the card is just bad :/

I tested with my card while watching a 1080p video over the GPU (with MPCHC) and the temperature didn't change at all. just the fan jumped from something around 40 to 80% (environment temp is at 25°C atm)




as a reference since 4650 and 3850 are ca. the same age and tech. 76 °C I only get in a real hot summer when I play f.e. Fallout 3 and the load is almost at a hundred percent. So adjusting the Automatic fanspeed manually to a specific and constant value seems to be the best solution imo - if you don't want to lose the card soon. (no matter what ccc says: if red, green or orange, 76°C is dang hot for that almost nothing happens)