So i have a gtx 560 and i have 2 monitors hooked up to it, now for a third can i use my motherboards dvi port ? i dont plan on doing something like eyefinity but just as a third monitor to play movies on above the other 2. mobo: Z68 Extreme3 Gen3 http://www.asrock.com/mb/overview.asp?Model=Z68 Extreme3 Gen3
For 3 monitors on Nvidia you would need an SLI configuration. Or you could get an AMD Eyefinity card. Your motherboard port won't work because the graphics are coming from your GTX 560.