No SLI option in Nvidia Control Panel

WildCard999

Titan
Moderator
I've hooked both cards up in my EVGA X97 FTW MB in slot 1 & 2 and connected my SLI bridge. I do have a EVGA 750ti FTW on the 3rd PCI-E slot as a dedicated PhysX card. I turned the computer on and both the Nvidia Control Panel and Device manager both pick up all 3 cards. I went into Device manager and updated the drivers on the 2nd card in SLI. Then in the Nvidia Control Panel I set the 750TI for dedicated PhysX and tried to activate SLI "Maximize 3d Performance" but that option was not there. When I go into "Configure Surround, PhysX it shows all 3 cards but has the HDMI going from card 1 to my samsung tv. If SLI was enabled wouldn't it show both 780's connected? I also checked in "manage 3d settings" and there was no option that I could see for SLI. Any help would be much appreciated!
 
Solution
Try removing the 750Ti. That motherboard only runs on x8/x4/x4 when all 3 long PCI-E slots are populated, and the second card's x4 is thing that prevents you from enabling SLI

chenw

Honorable
I wouldn't have gone for the Classified either, the extra lanes on that motherboard are not native, it's PLX chip that is doing the magic (instead of each PCI slot running dedicated X8 lanes each, the slots are instead sharing all 16 lanes), which, from what I gather, is actually worse than running native.

It's mainly for running Tri or quad GPU on a budget, but I would have used X99 for tri or quad anyway.