I just received a Maximus V Extreme and i7-3770k today to discover that the board wont post with my ARC1882ix-24 unless it is plugged in the black pci-e slot. When I put it in any other slot, the led stops at 95. The strangest thing is that my 1880ix-12 will allow the board to post regardless of which pci-e slot I use. I flashed it to the latest bios but the problem stays the same.