NiaNia :
How hot are we talking?
Use EVGA precision to look at voltage and edit voltage as such.
Are your fans spinning?
Well, when running Diablo 3 last night, it shut it self off (screen went black, PC still running); I rebooted the PC, started up CPUID HW Monitor, saw the card sitting @ 36C, started D3 again, and it started climbing to about 79C - 81C, at which point it went black screen again. I checked the card at that point, saw a bit of dust, aired it, vacuumed it, then restarted the pc and booted up Smart Game Booster Monitor, started a different game (World of Warcraft) and after about 5 minutes or so, it gave me an alert that the GPU was getting hot and to check the heat sink and fans, at which point I decided not to run games till I figure out what to do.
EDIT - also, forget to mention, the fans are running, though I think they may be slow