recently, I bought a second r9 270x to create a crossfire setup in my system.
The two cards are: A sapphire r9 270x TOXIC and a Sapphire r9 270x boost lite.
Unfortunately, the cards dont work toghether. I noticed this very phenomen when I close the game when using crossfire, the fans keep spinning after I shutdown my pc. My pc then restarts with the SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (atikmdag.sys) error. When I dont game things are just fine. The cards work great individually.
Here are my system specs:
Motherboard: msi 970 gaming
Ram: 2x 4gb Corsair Vengeance @1600Mhz
CPU: amd FX8320 @4.5GHz cooled by an corsair H80I GT (even when not overclocked still BSOD)
PSU: cooler master G650M 80+ Bronze
In addition I've already used two different crossfire bridges just to be sure.
Thanks a lot in advance