I run mine at 850mhz 2.0v, pretty extreme but it runs 24/7 without a problem. It sometimes gets up to 100degrees here, and its still fine. I have a golden orb and decent cooling around the cpu, so that could be a factor. My case has mounts for 2 60mm fans at the top back where the cpu is, so hot air is exhausted. The powersupply fan is on the bottom of the powersupply, this 92mm fan sucks hot air away too.