Help, Can't get GTX 280 SLi to work.

[Uberbob102000]

I just got my P6T Deluxe and my GTX 280s and got everything put together.
The problem is when I boot up it detects both cards but I don't get the Set SLi option under 3d settings.
I've tried:
-Switching SLi connectors
-Updating the BIOS
-Updating drivers from 180.43 to 180.48
-Reseating the cards


EDIT: I fixed it by wiping drivers a second time.

 

[Bryanator1989]

hmmmm thats really strange. you sure one of the cards isn't defective? they them individually.