I recently got a new computer. It had a 2x GTX 560 ti SLI. I don't think they are truly SLI. Because i don't get any performance boosts in my game. plus this, When i go to the NVIDIA CONTROL PANEL. It says i have 2 graphics cards. It only uses the one graphics card. How i know that is, when i game just 1 graphics card heats up. 2 of all, when in MSI afterburner. It shows that the first GPU is the one doing all the work. How do i enable sli? Or fix this?