Radeon HD 7870 XT Sapphire Edition randomly shows vertical lines

kala444

Prominent
Jun 28, 2017
2
0
510
PLEASE CAN YOU HELP ME?

So about a year ago i was installing Mafia 2 and suddenly white screen appeared and i had to turn off and turn back with a touch button on my monitor LG FLATRON W2361V and that fixed my problem temporary. Now that white screen appears randomly when I'm booting my PC or when I'm starting some game.

But here comes a bigger problem, so about a 1-2 months ago i played Rainbow Six Siege and suddenly gray screen appeared with vertical black lines then I needed to restart my PC to be able to use it again. So these vertical lines happen randomly (in the game, while watching videos on youtube).

Now it has started to be more frequently and it is really annoying.

here are my specs:

CPU: i5 2500K 4cores, 3.3ghz
RAM: CL9 Corsair Vengeance (2x4GB) 1600mhz
MoBo: Ascrock Z77 Extreme 4 with golden caps
HDD: 500 GB WD Black
1 TB WD Blue
PSU: Season 520W 80+ BRONZE
GPU: Radeon HD 7870 XT Sapphire Edition

What should I do to fix this please help?
Any replies would be much appreciated :)
Thanks!
 
Solution
Artifacts and lines are signs of a dying GPU. If you underclock your GPU and the problem disappears, then it's definitely a dying GPU.

kala444

Prominent
Jun 28, 2017
2
0
510
Okay, thank you on your replying, but how many mhz should i put? When playing games it's on 975 mhz.

Summer started so could the problem be overheating or older DVI cable?