I purchased a new DG43GT board and 9400 processor. It didn't consistantly boot and now I can't get to the BIOS, even using the jumpers--I don't get any active video on either HDMI or DVI (analog). I've unplugged everything and gone down to one stick of memory in DIMM slot 0. Occasionally I get just a slow series of single beeps like the board is slowly resetting itself. Any suggestions?