I got my 2 EVGA GTX 970s last nite in the mail. I purchased a superclocked blower model and the ACX 1.0 model to use on the bottom. Anyway, both cards are being recognized by windows & GPU-Z, but ive tried to get the SLI option to show up in nvidia control panel, but i cant enable it. I have tried 2 flexible bridge cables i had, but that didnt make a difference. Ive tried reseating the video cards to no avail. I ordered a EVGA 2 way Rigid SLI bridge, just to eliminate that possibility. Ive tried uninstalling and reinstalling the drivers and that didnt work either. Im starting to run out of ideas, I figured i would try driver cleaner, remove the bottom card, install the new drivers, than reinstall the 2nd card and try again. Is there any other things i can try? Im currently running a MSI z77a-g45 board which does support SLI, so its not because the board doesnt support it.