I have a 7950 and r290 in my rig but I don't have the right adaptor for the r290. The screen goes black when I have them both in as I presume it makes the r290 the one it likes best.
Can I modify the adaptor for the 7950 to go in the r290? I see that there are 2 pins that prevent it from being linked to it. Surely it's not that simple though? Maybe I will just remove the pins and find out!
Also can the r290 or any other gpu be dummy plugged without the adaptor?
I wander if anyone else is having these issues?