From the Computer Setup (F10) Utility menu, select File>Default Setup.
This restores the settings that include boot sequence order and other factory settings. However, it
does not force hardware rediscovery.
Choose Restore Factory Settings as Default, and the press
Select File->Apply Defaults and Exit, and then press
Reset the computer passwords and configuration information, such as the system date and time.
This step does not clear the passwords.
Clearing and Resetting the CMOS