SLI not available in NVIDIA control panel

BoboGirthy

Honorable
Oct 30, 2013
2
0
10,510
Just upgraded video cards from twin GeForce 8600 GTS in SLI to twin GeForce GTX 650 Ti Boost Superclocked cards in SLI. The option to enable SLI in the NVIDIA control panel is no longer available. Both cards are recognized with the second being automatically assigned as the PhysX processor. The GPU clock frequency shows as only 350 MHz on the second GPU. The SLI bridge functions fine with 8600 cards. The cards were installed in the same PCIe slots previously used and are in the motherboard's manufacturers recommended positions.

I have BFG 680i SLI Motherboard
Intel core duo @ 3.0 GHz
4 GB SLI certified Ram
700 W power supply

Any help would be greatly appreciated!
 

BoboGirthy

Honorable
Oct 30, 2013
2
0
10,510
I have uninstalled and reinstalled drivers several times both in safe and normal modes. I have also tried different older driver versions without success. Bios on the motherboard is newer version. The cards function normally. The SLI option in the control panel is absent however.