R9 390 causes pc to restart when playing games

indosurf

Reputable
Jul 12, 2015
4
0
4,510
Just installed my new r9 390 into my computer. Uninstalled previous nvidia drivers for my gtx 670, etc...

The only problem which is a major one is when I boot up a game such as the Witcher 3, my computer turns off and turns on again by itself. There is no indication of why this happens or any warning that appears when I start the game.

The in game menus are fine but as soon as I have control of my player, the computer turns off and on again. I literally have only a split second to see my character. I have also tried other game like CS GO, World of Tanks.

P.S -- what I mean by off and on again is that my pc cuts power to the PSU and the fans stop and start again. it isn't like going to windows and selecting restart while the fans are still going on in the background.