This rig seems to be experiencing a BSOD on Windows 7 every 4-5 hours.
It does not appear to be overheating in any of the components.
It's on a Gigabyte motherboard with a 750W Gold PSU.
Does anybody have any specific tips for dual 280x that seemed to be causing BSOD?
What mainboard/CPU combination are you using? Two GPUs plus a CPU may be taxing the limits of your power supply, depending on how honest the rating is and what the +12v rails can provide. Measure the voltage on your +12v rail while hashing and see if you're suffering from sagging voltage at the cards.