hello i am trying to enable sli with my two gtx 560 ti on a gigabyte ga-z68x-ud3h-b3 mainboard i have the sli option in the control panel. but it says "To use maximum 3D perfromance, connect the SLI-ready graphics cards with an SLI connector"
it says that regardless if i have the bridge on or off
Have you checked the nvidia drivers to see if the second card shows up in the physx section of the nvidia settings (or a third party utility like MSI Afterburner)? If it does, have you tried an alternate bridge? Are the necessary power connections made (2 x 6 pin per card)? Does the second card's fan spin up at power on? Is your PSU up to the task of SLI 560's?