Monitor or GPU problem

DevilBoy454

Honorable
Dec 14, 2013
15
0
10,510
So, I changed my GPU recently (and PSU) and I seem to have bit of an issue, Screen going black and sound going mad but PC seems like its working (CPU fan and stuff seems to be going) but here is the weird thing, it never happens while I am playing a game, I played Batman Arkham city and other games 3+ hours (Arkham city almost whole day without issue) and nothing happens, but when I watched videos on youtube or Shameless on putlocked my screen went black.
It maybe happens once or day or not even once, but it is annoying, do you mabye know how can I solve this issue?
My gpu is AMD R7 260x sapphire OC edition, and PSU is antrac (i think its spelled like that) 500W
Thank you!
 
This might actually be a psu problem if you have bought an extremely poor quality psu (antec has good and bad power supplies)
Though since it never happens during a game, it is likely your gpu. try updateing the drivers, and doing a clean install when you do. It doesnt sound like it's your monitor, but it doesnt sound like an actual hardware problem either