Borderlands 2: computer restarts at launch.

[curtsikone]

whenever i press play on the borderlands 2 splash, my screen freezes and my computer automatically reboots. i've tried everything (running w/out launcher, updating gpu, reinstalled the whole game, reinstalled the required redistributables) except updating my bios. would it be worth doing that? i've been a bit skeptical due to the risks involved. someone had mentioned a ceg problem, what is that? any advice would be appreciated.

edit: here is the ongoing discussion so far
http://forums.gearboxsoftware.com/showthread.php?t=205920

 

[darth pravus]

What PSU do you have?

 

[curtsikone]

i'm unsure of the actual model, but its wattage is 550.

if you were wondering about the specs of everything else:
ga-970a-d3 motherboard
amd fx(tm) 6100 x6 cpu
sapphire hd radeon 6770 gpu