ADLINK MXE-5300 Series - Manual (Page 76)

66 BIOS Settings
User Password
Sets boot/setup User password
5.6 Exit
Save Changes and Exit
When BIOS settings are complete, selecting this option saves
all changes and reboots the system, and new settings take
effect.
Discard Changes and Exit
Discards all changes and exits BIOS setup.
Discard Changes and Reset
Resets system setup without saving any changes.