Compaq Armada 7400 Reference Manual page 83

When the DriveLock password prompt displays, enter your user
password.
If you type the user password incorrectly, you are prompted to
reenter it up to two times. After two unsuccessful attempts to
unlock a protected hard drive, you must restart the computer.
If you forget your user password, you can access your removable
hard drive with the master password. Record the user and master
passwords and keep them physically separate from the computer.
Once you create a user password, you can only change the
password after the computer has restarted and the protected hard
drive has been unlocked.
1. Turn on or restart the computer and enter your current user
password.
2. Run Computer Setup.
3. Select the System Features icon Æ Security Management box
Æ DriveLock tab.
4. In the Current Drive section, select either hard drive bay or
MultiBay.
5. In the User Password section, select Change.
6. Type the old user password.
7. Enter your new user password. (You may use up to 32
alphanumeric characters, and you may use the same password
you are using for the power-on password.)
Type carefully because the password does not display as
you type it.
8. Enter the password again to verify it.
9. Select OK.
Security