SLI issue with GTX 680

[anth0nym]

Just picked up a second MSI Lightning GTX 680 today and installed it into my system and its just being a brick right now. Device manager recognizes that its installed and so does GPU-z, Nivida control panel, but it's not doing anything in the game or testing. I can't seem to get it to run SLI. Nivida Control Panel won't give me the option to turn on or off SLI, just PhysX settings.

I have tried to re-install drivers, try different PCI slots, different SLI cables, etc. And nothing! Any help would be appreciated. Thanks!


System info:
i7-3770k (not OC)
32gb Corsair XMP 1600
Gigabyte Z77-UP5-TH
1000w Corsair Silent

 

[bigcyco1]

try removing the drivers with driver sweeper in safe mode and install only 1 card. Then install the drivers again. Shutdown and install the second card and let windows install the drivers on the second card. There should be a bubble at the bottom right when windows loads telling you that you can enable sli.
Sometimes windows doesnt like 2 cards when you install drivers.