Computer will freeze and then grey vertical lines will appear

blueyfooey

Honorable
Aug 13, 2012
31
0
10,530
I've read through a few threads about this, and apparently it's either due to the GPU, motherboard, or PSU for me. However, a few things lead me to think it might be the GPU: while idle and just loading up from logging in, the GPU fan will go abnormally fast, much faster than usual, and the login screen has a lot of dead pixels just floating around, with flickering areas. I'm not entirely sure, however, so I wanted to confirm this. Thanks for any help you guys can give me!

My GPU and PSU specs:
SAPPHIRE Radeon HD 7950 3GB
Rosewill RG630-S12 - Green Series 630 Watt