I have a Dell Dimension 2400 that when it boots up I get a Keyboard Error. I'm told to press f1 to continue or f2 for the setup. Nothing works though. The specific error is 8602 - Auxiliary Device Failure. I have tried other keyboards. I have tried a USB keyboard and when its plugged in it bypasses the keyboard error and works fine in Windows but it will not work at the BIOS level. Finally the 4 lights that are on the motherboard plate at the back where everything connects a, b and c are green and d is orange. Thanks in advance for any help that can be given.