I have an AK79D-400N 400 watt power supply XP 2600+ running at 166mhz x 11.5 (I think this is a very safe speed) 8xAGP running at 66.7mhz PCI running at 33mhz 512 PC2700 DDR333 running at 166mhz x auto=333 I am using a Microsoft USB internet keyboard plugged into the USB port next to the PS2 keyboard port in what I refer to as the top USB ports. This is the second board now with the same problem. In addition to the keyboard problem, sometimes, it does lock up during games, (ie. Medal of Honor) but the bigger problem is on restart, I get a "keyboard missing or keyboard error" message and The USB keyboard does not work at this point. I have a regular PS2 keyboard that does work when I boot with that one plugged in. This time, with this board, after I got past the error message, with the other keyboard plugged in, the USB keyboard worked again. The previous board, (which I replaced last weekend) the USB keyboard would not work at all until I plugged it into one of the lower (as you look at the back of a ATX mid-tower) of the two sets of USB ports. In fact, nothing worked anymore in either of the upper two USB ports. I checked the BIOS and all the USB ports were enabled and the USB keyboard shows AUTO. For now, I have both keyboards plugged in, so if it bails again, at least I can restart. Maybe it isn't the board, but maybe it is again? Any suggestions? Thanks RJL