User's Manual

To disable password, just press <Enter> when you are prompted
to enter password. A Message <<PASSWORD DISABLED!!!>> will
appear to confirm the password being disabled. Once the password
is disabled, the system will boot and you can enter setup freely.
If you select "System" at "Security Option" in BIOS Features Setup
Menu, you will be prompted for the password every time. If you
select "Setup" at "Security option" in BIOS Features Setup Menu,
you will be prompted only when you try to enter Setup.
Page 38 Mainboard User's Manual