Custom built PC acting strange

mobro7

Honorable
Apr 20, 2013
7
0
10,510
I have recently been experiencing very strange crashes where my computer randomly locks up and the display goes black, sometimes if I check event viewer after these crashes it says display driver crashed and tried to recover but most of the time It shows nothing. This happens anywhere from 10 minutes after booting up to 12 hours and it happens regardless of what I'm doing (I could be gaming or just browsing the web and it will still crash). I have tried countless solutions and I believe the issue is either my power supply or motherboard but I don't want to waste time or money replacing either of these components if it wont fix the issue. I have also been getting an issue where my computer crashes and then when I try to turn it back on the fans connected to the PSU will spin and light up for about a second before stopping and it refuses to boot. After turning off the PSU and turning it back on and trying to turn it on multiple times it eventually boots up and usually doesn't get this problem again for a couple of days. I have tried testing each individual component with many different stress tests and temps are in the safe zone and none of the tests fail. I also tried running each card by itself and I still get the issue. I have also attempted to completely wipe drivers and re-install them with no luck. If anyone has any suggestions on how to resolve this issue please help. It's my first time posting on this forum so I apologize in advance if I am not correctly following any format.

My specs are:
FX-8350
Crossfire 7950s
Gigabyte GA-990FXA-UD5
Raidmax rx-1000ae
Samsung 8gb (2x4gb) memory
Antec 900
Raid 0 WD blue caviar 320GB hard drives cached by a OCZ synapse 128gb drive

One thing that I also noticed is that when these crashes happen everything is still running in the background,