BCM MX680RD - Load Optimized Default; Boot Override; Launch Built-In EFT Shell; Launch EFI Shell from Filesystem Device

MX680RD User’s Manual
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2.8.4 Load Optimized Default
Restore/Load default values for all the setup options.
NOTE:
Loading this option is recommended after BIOS update. Then load “Save changes and
Exit” BIOS option.
2.8.5 Boot Override
User can override the pre-set boot priority manually through this menu for detected boot
devices.
NOTE:
This function will only function once after rebooted. If user prefers to set the boot
device boot order permanently, then the change will need to be made under “Fixed
BOOT ORDER Priorities” menu.
2.8.5.1 Launch Built-in EFI Shell
Force the system to boot into the UEFI Shell once.
2.8.5.2 Launch EFI Shell from filesystem device
Attempts to launch EFI shell application from one of the available filesystem devices.
2.8.6 AMIFWUpdate
Launches built-in AMIFWUpdate utility to update BIOS.