So, I have 2 Geforce GTX 260's. I decided to put the 2nd one in my computer and run them SLI to play the new Battlefield Beta. I plug up the 2nd one turn the computer on and it isn't showing up in Device Manager.. Only the first. I unplug the 2nd video card, take out the first video card which I have always used and put the 2nd into the first slot and fire up the PC and everything works. I put the OLD video card which is perfectly fine into the 2nd PCI-E slot and still nothing shows up as 2..
What gives? Is there something I missing to turn on the 2nd PCI slot? Both fans are running on both video cards so I know they are getting power and running.