What should I do if the standard product cannot be turned on?

1. Cannot turn on after power on

First observe whether the indicator light of the adapter is normally lit (as shown in the left picture), and whether the power supply lamp of the motherboard is normally lit (in the right picture); then confirm whether the power supply is normal; use a multimeter to test whether the adapter voltage is normal (measured according to the standard of the adapter) Voltage), check whether the 4pin power head of the adapter is in good contact.

2. Cannot turn on when the power supply is normal

If the machine still cannot be turned on, separate the main unit and the panel and power on the main unit separately. If it cannot be turned on, it is caused by the failure of the motherboard.