Also, strangely my system is very similar to the OP:
CPU: Intel i5 750 2.67GHz OC'd to 3.0 GHz (if I go higher than 3.04 [19 x 160Mhz] I reach the 72 degree limit suggested by Intel)
CPU Cooler: Arctic Freezer 7 Pro Rev 2 (some buyer's remorse, here)
MOBO: Ga-P55A-UD3
GPU: EVGA GTX 560 Ti
RAM: G.SKILL Eco 1.35V @1.4V, 1600MHz rated but running @1500MHz, 4GB
HD: Western Digital Caviar Black 650GB
PSU: Antec EA650 650W
Case: LianLi PC-K62
Input Devices: Logitech Illuminated Keyboard, Logitech MX518 (the culprit), USB2.0 WLAN
Edit: Forgot to mention I have a Creative Soundcard, been so long since I got it I don't remember which one it is.
Also, I'm running my CPU voltage at 1.26V for a 3.0GHz OC. .... Is this too high?
I just went with what GIGABYTE autoclock recommended, and while I ran Prime95 fine, I did have 2 system reboots over a 2.5 year span where the bios claimed it reset due to overclocking failure. Since it happend so rarely, I let it go.
