The computer does not turn on the self-test, only the fan rotates, long press the power button does not stop the electricity

The fact that the fan can start means that the power supply is fine, but the lack of self-test should be a problem with the motherboard. The main reason for this is the fact that it is not a good idea to have a computer that does not have a computer that does not have a computer. The motherboard is a bigger problem, you can first look at your motherboard out of warranty? Then find a dealer, computer hospital, technology market for motherboard testing. In general, the processor is very strong life, will not be damaged.