You might want to check this out before buying such a high end gpu and pairing it up with the fx 6350
http://nl.hardware.info/reviews/6087/35/amd-vs-intel-57-processors-megatest-benchmarks-gtx-960--980-battlefield-4...
well, found one on my motherboard saying 2110 so cpu should be supported.
Edit: bought another motherboard, Asrock b85m pro4, If that works I know for sure the asus boards were broken.
Did all of that already. serial number ends on 205087 but there is no 5087 biosversion so I don't think I can find out what bios I have without video output.