Having a bit of issues with this now. I was running 800 GPU and memory would vary between 900 and 950 depending if I forgot to reclock it when messing around. Anyways I DL'd Rivatuner since it would allow me to go over the 800 cap that CCC has. When OC'ing with Riva I can OC the 1st GPU just fine. But when I run the test no matter if the shortcut is renamed it will only run using 1 card. It will run stable and ran great at 849mhz I knockedo ut like 6.5k score. But the second I OC the 2nd GPU in Riva it goes unstable in furmark. Running both the 1st and 2nd GPU's at the same clocks, 800, 836, 849 they would all crash, but if I just didn't OC the 2nd GPU it would run 1 card fine. Even when OCing the second GPU it wouldn't use it, would sit at about 100fps then go unstable. Where as running at 750 GPU it runs well over 160fps.