Hey so recently my computer has developed this problem causing random reboots. It usually only happens while gaming, but it has occurred while watching DivX videos too. After a reboot, my computer will run solid for 12 hours to 3 days =\, until another random reboot of death occurs. I'm pretty sure it's not a heat issue, but i could very well be wrong, these are the temps for my hardware. There have also been restarts when i know my computer was pretty cold. (all temps are in Celsius) All temps recorded with HWmonitor CPU Idle: 30-33 CPU while gaming: 40-50 (it never goes past 50 in games) GPU Idle: 50-54 GPU while gaming: 60-78 (it only gets to 70+ in very gfx intense games) PSU: 30-37 Motherboard: 30-35 Hard Drive: 26-30 I've mem tested for 15 hours with 0 errors, and ran prime95 for 12 hours with no problems. At first i thought it may be my PSU, so i just installed a new one and I still get the restarts. Specs: Q6600 2.4 @ 3.5 EVGA 122-CK-NF68-A1 nForce 680i CORSAIR CMPSU-650TX 650W ATX12V BFG 8800gtx 768MB 384-bit Kingston HyperX DDR2 1066 5-4-4-12 Seagate Barracuda 7200rpm 500g any input will be greatly appreciated, I'm running out of ideas =[. Thanks.