No video output on new build

[Harigh]

I just put together a new build, and I'm not getting video output via VGA (via adapter) or DVI from my EVGA GeForce GTX 560. The fan is up and running, I have two 6 pin power connectors plugged into it, and I don't know what could be wrong. It's not the monitor, because it doesn't work on another one either. Any ideas?

 

[borisof007]

What's your power supply?