I've got a custom built PC from early 2011, and I'm running into an issue that I'm not sure how to debug. Every few days the following will occur (in order):
Screen goes black (if i'm playing music the music keeps playing)
All fans spin up to full speed (gets really loud)
I have to reboot the machine
My wild guess was overheating, so I bought an air can and blew out some dust, but it's still happening.
So my question is, how do you debug a possible hardware issue? Is there some diagnostic I can run from within Windows after I reboot due to a lockup that will tell me which component is at fault?
CPU: i7 950
MOBO: EVGA 131-GT-E767-TR LGA 1366
Power supply: Corsair CMPSU-750TX 750-Watt TX Series
GPU: XFX HD-687A-ZNFC Radeon HD 6870 1GB
Operating system is Windows 7. No overclocking.
Also I'm new to superuser (but not stack exchange), so I'm not sure what the best tags are for this.