Asus P5BV-C - Manual (Page 91)

ASUS P5BV-C Series 4-33
2. On the password box that appears, type a password composed of at least six
letters or numbers, then press <Enter>.
3. Confirm the password when prompted.
The message “Password Installed” appears after you set your password
successfully.
To change the user password, follow the same steps as in setting a user password.
Clear User Password
Select this item to clear the user password.
Password Check [Setup]
When set to [Setup], BIOS checks for user password when accessing the Setup
utility. When set to [Always], BIOS checks for user password both when accessing
Setup and booting the system. Configuration options: [Setup] [Always]