Shuttle SX79R5 User Manual page 22

Select Change User Password to give or to abandon password setting same as
Change Supervisor Password item above.
Note that Supervisor Password field allows users to enter and change the settings
of the BIOS SETUP UTILITY, while User Password field only allows users to enter
the BIOS SETUP UTILITY without having the authorization to make any change.
The Password Check item is used to specify the type of BIOS password protection
that is implemented. Settings are described below:
Setup
Always
To clear a set Supervisor Password/ User Password, just press [Enter] under Change
Supervisor Password/ Change User Password field when you are prompted to enter
the password. Please note that when Supervisor Password has been cleared, User
Password will be cleared as well. A message box will pop up confirming password will
be disabled. Once the password is disabled, the system will boot and user can enter
setup without entering password.

The password is required only when users try to access to
BIOS SETUP UTILITY.
The password is required every time when the Notebook is
powered on or when users try to access to BIOS SETUP
UTILITY.