i just posted for overclocking an amd 64 3000+. i can OC my system by 3-5% running around 2.06ghz and at idle, the temp is around 33C and runs fine. but if i run a game, say doom 3, 3dmark, whatever, eventualy my system will just stop running and reboot. if its not overheating then what could be the issue. i am running a 300 watt psu. could that be the issue? what else???