I have ordered 2 P5As from TCcomputers and neither has worked, the first board I believed to be bad and had it replaced shortly after I had received it. However, I am having the same issue. The board is not in a case, I have a 16mb pci monster fusion, 32mb sdram and Intel 200MMX Overdrive, and an ATX power supply, all on a antistatic mat in my shop. I tested all of these components on a different (Intel chipset) ATX board and all works well. Two bad boards in a row?