I received my motherboard and 1950x and for some reason whenever I try using the top pcie lane slot it never can pick a bus speed. I was wondering if it’s a motherboard issue or a cpu issue. Also I tried on another board the exact same model and it wouldn’t work either. I have tried 2 different GPU’s. GPU-Z shows everything except a proper bus speed, so the card is worthless and can’t game or be used to do anything. I have tried reinstalling drivers and am on the newest BIOS version for the board.I have also tried to manually set in the BIOS. Auto, PCIE 1 through 0. I am using PCIE slots 1 and 4. I also have 3 m.2 drives in the m.2 slots on the board if that matters. I was just wondering is it an issue with the motherboard or some part of the CPU most likely? Any assistance would be greatly appreciated.