Msi z690-a Restore default method:
LoadFail-SafeDefaults restores the default values. Select this, enter, and press Y. Then press F10 and Y to exit the reboot. If not, please follow the following methods: Disassemble the chassis, unplug the power supply, find a three-pin jumper next to the CMOS battery or CMOS chip, change the jumper cap from pins 1 and 2 to pins 2 and 3, and wait 10 seconds. Switch back to pin 1 and 2, plug in the power supply, and turn on.