Supermicro X11DPG-QT User Manual page 217

Restore Factory Keys

Select and press Yes to restore factory default secure boot keys and key variables. Also,
it will reset the system to the User mode. The options are Yes and No.
Reset To Setup Mode (available when the System Mode is in User

mode)
Select and press Yes to clear all secure boot variables and reset the system to the Setup
mode. The options are Yes and No.
Appendix F: Secure Boot Settings
217