Even if the video card was bad you should still be getting some LED activity on your keyboard, at least, as well as some sort of POST audio. Did you make sure ALL of the power connectors are connected to the motherboard itself? There is the 24-pin power connector on the far right center of the board, and you also have an 8 pin power connector in the upper left corner of the board. A lot of people forget about the power in the upper left and without it, you have nothing!
Basically if you leave the 8-pin unplugged the board behaves as if it was just completely dead, nothing happens with the exception of maybe some fan rotation.
Basically if you leave the 8-pin unplugged the board behaves as if it was just completely dead, nothing happens with the exception of maybe some fan rotation.






