Well this will be the 3rd or 4th computer I've built and I've never had a problem like this before. This computer is based on an Socket 775 Intel Petium D 840 cpu. I got started putting everything together and I thought I was done. But when I turn it on, all the fans start spinning, but nothing happens. I dont get any video on the screen nor do I get any beeps or error codes. There is power to the board, and the video card is brand new. Any ideas?