Hi there, I have just bought the new asus r7 260x OC model To replace my gtx280 as I was having heat issues with it the other day. The card keeps black screening me even though the monitor is Still on. I know the 260x is a pcie3 card which It is in a pcie2.1 slot But it should still work until I can upgrade the rest of my rig. I have a gigabyte ex58 extreme Intel i7 920 D0 2.66ghz 12gb 1600 ddr3 corsair ram 1000watt corsair hx1000 psu I just don't understand why this is becoming un-usable when I just bought it yesterday. It black screens or freezes on restart, black screens On opening catalyst centre. Any ideas?