Ok, here is the deal. I just got an Athlon XP 2100. It will auto-shut off after about 10 sec into booting time. One thing I have considered is that it may be overheating. I've read that XP Boards will auto-shut off when the processor overheats. Well I've set the fan to operate at MAX Speed, which is 4800rpm. I'm still getting the same problem though. I really need help on this. Thanks in advance.