This is doing quite a good job of annoying me.
I have 6 cards plugged into MSI 890FXA-GD70 motherboards... all with pcie 1x extenders that I have cut/shorted myself.
I can start up all 6 cards fine. The rig runs great for a few hours.
Sure enough... sometimes 5 minutes in, sometimes 12 minutes in... card number 4 (according to aticonifg, and always/only-ever card number 4) will receive the dreaded "Verification Failed, Check Hardware!" message.
I am not even 100% sure what card it is because all of them feel hot to the touch on my setup.
I have the exact same setup on a MSI 790FX-GD70 board... and I have yet to notice this, but then again there are only 5 cards on the board.
Anybody else experience this problem? Know any possible solutions?