Intel BONANZA S478 I875 ATX DDR BLKD875PBZLK User Manual
Product codes
BLKD875PBZLK
Overview of BIOS Features
93
3.10 BIOS Security Features
The BIOS includes security features that restrict access to the BIOS Setup program and who can
boot the computer. A supervisor password and a user password can be set for the BIOS Setup
program and for booting the computer, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all the Setup options in
boot the computer. A supervisor password and a user password can be set for the BIOS Setup
program and for booting the computer, with the following restrictions:
• The supervisor password gives unrestricted access to view and change all the Setup options in
the BIOS Setup program. This is the supervisor mode.
• The user password gives access to view and change Setup options in the BIOS Setup program
based on the setting of the User Access Level option in the BIOS Setup program’s Security
menu. This is the user mode.
menu. This is the user mode.
• If only the supervisor password is set, pressing the <Enter> key at the BIOS Setup program’s
password prompt allows the user access to Setup based on the setting of the User Access Level
option in the BIOS Setup program’s Security menu.
option in the BIOS Setup program’s Security menu.
• If both the supervisor and user passwords are set, users can enter either the supervisor
password or the user password to access Setup. Users have access to Setup respective to
which password is entered.
which password is entered.
• Setting the user password restricts who can boot the computer. The password prompt will be
displayed before the computer is booted. If only the supervisor password is set, the computer
boots without asking for a password. If both passwords are set, the user can enter either
password to boot the computer.
boots without asking for a password. If both passwords are set, the user can enter either
password to boot the computer.
Table 47 shows the effects of setting the supervisor password and user password. This table is for
reference only and is not displayed on the screen.
reference only and is not displayed on the screen.
Table 47. Supervisor and User Password Functions
Password Set
Supervisor
Mode
Mode
User Mode
Setup Options
Password to
Enter Setup
Enter Setup
Password
During Boot
During Boot
Neither
Can change all
options
options
(Note)
Can change all
options
options
(Note)
None None
None
Supervisor
only
only
Can change all
options
options
Can change a
limited number
of options
limited number
of options
Supervisor Password
Supervisor
None
User only
N/A
Can change all
options
options
Enter Password
Clear User Password
Clear User Password
User User
Supervisor
and user set
and user set
Can change all
options
options
Can change a
limited number
of options
limited number
of options
Supervisor Password
Enter Password
Enter Password
Supervisor or
user
user
Supervisor or
user
user
Note:
If no password is set, any user can change all Setup options.
For information about
Refer to
Setting user and supervisor passwords
Section 4.5, page 116
✏
NOTES
• For enhanced security, use different passwords for the supervisor and user passwords.
• Valid password characters are A-Z, a-z, and 0-9.
• Valid password characters are A-Z, a-z, and 0-9.