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Description 25
BIOS Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can be accessed
and who can boot the server. A supervisor password and a user password can be set for the Setup
menu and for booting the server, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all Setup options. If
only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives the
user restricted access to Setup.
• If both the supervisor and user passwords are set, you must enter either the supervisor password
or the user password to access Setup. Setup options are then available for viewing and
changing depending on whether the supervisor or user password was entered.
• Setting a user password restricts who can boot the server. The password prompt is displayed
before the server is booted. If only the supervisor password is set, the server boots without
asking for a password. If both passwords are set, you can enter either password to boot
the server.
Table 4. Supervisor and User Password Functions
Password Set
Supervisor
Mode
User Mode
Setup Options
Password to
Enter Setup
Password
During Boot
Neither Can change all
options
(Note)
Can change all
options
(Note)
None None None
Supervisor
only
Can change all
options
Can change a
limited number
of options
Supervisor Password Supervisor None
User only N/A Can change all
options
Enter Password
Clear User Password
User User
Supervisor
and user set
Can change all
options
Can change a
limited number
of options
Supervisor Password
Enter Password
Supervisor or
user
Supervisor or
user
Note: If no password is set, any user can change all Setup options.