So i just finished problem with the CPU being too hot on my new build now this. It's turning out to be more trouble then it's worth so far. I just tested my EVGA GTX 680 FTW+ 4GB on the Sleeping Dogs demo with Extreme graphics setting on and the GPU was running at 80C with 59% fan speed. Is that fine? And what's the speed i should keep my fan running at when it gets to 80C? I don't want to decrease the life of my GPU fan already. Also, how hard is it to replace a GPU fan after it fails? Can i just send it back to EVGA and pay a little fee for them to fix/replace it? Thanks for any help.
That is fine but would like to see it a little lower. You can try to manually put the fan up to about 85% and that would drop your temps some. Personally, I do not let my cards get over 82, that is when I start to worry.
80C is perfectly fine for a 680, especially a reference cooler that is factory overclocked. What seems counter intuitive is that the lower the resolution and easier the game is, the hotter the cards typically get. Higher FPS typically leads to higher temps.
Two monitors play no part in it, as two monitors only affects idle temps.
Reference designed cards will typically be ok with your card reaching nearly 85C before the fan starts to jump extremely high. If you want it cooler, you can use MSI afterburner and adjust the fan profile, but I'd leave it the way it is, or you will have some loud noises from the fan, and possibly wear the fan out sooner.