Hello all and well met. I have 2 video cards installed and I noticed that only one of the identical cards is shown up as PCI EXpress gen 2 There both->(P/N 512-p3-n801-ar) Only other thing I noticed different was the video bios version and the IRQ. So my question is do I need to flash the video bios? I'm trying to SLI my system and it's not allowing me to do so. Main board is a 790i, 6 gigs of kingston DDR2 800mhz, and a tagan BZ 800W.