Asus RS100-E4/PI2 - Manual (Page 96)

5-36 Chapter 5: BIOS setup
2. On the password box that appears, type a password composed of at
least six letters and/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]