Need help trouble shooting my gpu?

TheGnomeKing

Reputable
Jul 15, 2015
3
0
4,510
So my build is
Cpu: I7-4790k
Gpu: GeForce GTX 980
MOBO: Sabertooth Z87
OS: windows 8.1
And when ever I launch the computer with the graphics card installed the screen looks all weird with these horizontal multi color lines going across the screen. The bios and os both work it just doesn't look right.
but when I take the card out and use the MOBO's HDMI it looks fine.

Any ideas what could be causing this?
I can upload pictures if needed
 

TheGnomeKing

Reputable
Jul 15, 2015
3
0
4,510


Yeah I just tested it out. I'm still getting those lines on my screen. I also put their graphics card in my pc and everything ran fine.
So it seems I have bad graphics card, I think.