Problem: Monitor has video card signal, no picture.
This happened before but I usualy reseted my CMOS and it worked, now it doesn't.
No video on any monitor or tv.
Fans spin, 2 green leds are on.
Processor Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (4 CPUs), ~590MHz
Memory 4096MB RAM
Video Card ASUS GeForce GTX 560 Ti
No POST on the board? Did the system ever beep when starting it before? If you have onboard video, try removing any expansion cards you have installed on your board and plug the video to the onboard. Check to see if you get video and POST now.