Q: Why power LED lights up when I connect the power supply unit (PSU) but has not switch on my PC system yet? (test)
A: This symptom is normal on this motherboard. When power supplier is connected first time, disconnected and connected again, or electricity recovery after shutdown, the power LED lights up. After one uses the system and normally shuts down the system, the power LED will be turned off.
Normally, people do not get used to disconnect the power source after using the PC. You can disconnect the power and re-connect it to keep the power LED lighted. In case other people use your PC system and shutdown the system under normal shutdown process, the LED will turn off. You will know that your PC had been used by someone else.
  



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