Display stops working at random times

ninjabreadman5

Honorable
Jan 5, 2014
2
0
10,510
My computer has worked fine for over a year. Recently it has decided to stop displaying anything randomly. It will start in safe mode but rarely start up normally and when it does it usually doesn't stay on longer than an hourish. I have checked to make sure all the cables are secure and all the cards are seated properly and still the same thing.

geforce 650 ti
amd phenom 2 x4 955 cpu
asus crosshair 3 formula mb
gskill 2gb ram x 2
2 TB toshiba HD