I hope Im posting this in the right place , I have been racking my head about this before i advise a friend locally about their new video card for their older but still nice Gateway machine... the specs I7-920 socket 1366 9GB ram (I thinking they are running at 1066 and far as i can tell the pci E slots are PCI-E 2.0 .... the problem is as I am concerned that the GTX660 Ti has a PCI-E 3.0 architecture ,, the compatibility with a 2.0 slot, I want to make sure their slot supports 3.0 as its different than 2.0 I cant find a bios update for it that addresses this so ,, if anyone knows big help.