"24V DC Cooling Fan" is the foundation or core computer hardware to run its normal operating stability of the software can have a very important role. I think because of the restart phenomenon is caused by the most hardware, we do not think the hardware is very complicated, in fact, "24V DC Cooling Fan" and there was a lot of laws. Normally the machine is rebooted accidentally caused by hardware has the following characteristics: Software upgrade or replacement can not be solved with a joint, fault occurs in the same way. Find "24V DC Cooling Fan"when a hardware failure, we must first rule out hardware setup errors and set joint errors. That help to find the correct hardware failure.