Intel D915GAG Product Specification - Page 97

BIOS Security Features

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Overview of BIOS Features 3.9 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 the BIOS Setup program. This is the supervisor mode. • The user password gives restricted access to view and change Setup options in the BIOS Setup program. This is the user mode. • If only the supervisor password is set, pressing the key at the password prompt of the BIOS Setup program allows the user restricted access to Setup. • 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. • 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. • For enhanced security, use different passwords for the supervisor and user passwords. • Valid password characters are A-Z, a-z, and 0-9. Passwords may be up to 16 characters in length. Table 49 shows the effects of setting the supervisor password and user password. This table is for reference only and is not displayed on the screen. Table 49. Supervisor and User Password Functions Supervisor Password Set Mode Neither Can change all options (Note) Supervisor only Can change all options User only N/A Supervisor Can change all and user set options User Mode Setup Options Can change all None options (Note) Can change a Supervisor Password limited number of options Can change all Enter Password options Clear User Password Can change a Supervisor Password limited number Enter Password of options Note: If no password is set, any user can change all Setup options. Password to Enter Setup None Supervisor User Supervisor or user Password During Boot None None User Supervisor or user 97

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Overview of BIOS Features
97
3.9
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
the BIOS Setup program.
This is the supervisor mode.
•
The user password gives restricted access to view and change Setup options in the BIOS Setup
program.
This is the user mode.
•
If only the supervisor password is set, pressing the <Enter> key at the password prompt of the
BIOS Setup program allows the user restricted access to Setup.
•
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.
•
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.
•
For enhanced security, use different passwords for the supervisor and user passwords.
•
Valid password characters are A-Z, a-z, and 0-9.
Passwords may be up to 16 characters in
length.
Table 49 shows the effects of setting the supervisor password and user password.
This table is for
reference only and is not displayed on the screen.
Table 49.
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.