Hi guys,
sorry if I have to open up this thread again, but I have the exact same error as the guy who open the thread. The problem for me is that I already have all the settings which were discussed here and the GFX0 card is still running in PCIe v2.0 8x instead of PCIe v2.0 16x. I think the board doesn't support PCIe v3.0 the GPU would. Unfortunatelly I wasn't able to have a look at the pictures which were posted about the BIOS setting. It seems like someone has erased them a while ago. I mean it is a old thread.
Setting: UMA-Sideport = Disabled
GFX = GFX-GPP-...-...
I would be glad hearing from you guys.
Best regards,
Dirk