Hi everyone. I've been racking my brain all day on this one. I have an xfx 680i sli mobo and I just got a 2nd 8800gt for it. Problem is nvidia control panel and rivatuner are both telling me the 2nd card is only at 4X. This mobo supports 2 16x pci slots. I've tried to adjust it in the bios (p32) but didn't see a way to. the gpu drivers and mobo drivers are both current. Please help!!!