hey guys recently i i took out one of the gtx 570's that were sli'ed in my system to sell it but the problem now is that the other gtx 570 that i did not sell and am using is not being detected by my motherboard. but when i put the gtx 570 in the pcie 8x slot it work but not the 16x slot?? any help will be greatly appreciated. my bios settings:[/IMG] plez help could this be a mobo related issue?