Password Protection; Erasing Lost Or Forgotten Passwords (Clearing Cmos) - Lenovo ThinkCentre 3029 User Manual

Figure 38. Installing a padlock

Password protection

To deter unauthorized use of your computer, you can use the Setup Utility program to set a password. When
you turn on your computer, you are prompted to type the password. The computer cannot be used until
a valid password is typed in. Refer to Chapter 4 "Using the Setup Utility program" on page 49 for more
information.

Erasing lost or forgotten passwords (clearing CMOS)

This section provides instructions on how to erase lost or forgotten passwords, such as a user password.
To erase a lost or forgotten password, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 14.
3. Locate the Clear CMOS /Recovery jumper on the system board. See "Locating parts on the system
board" on page 10.
4. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin 3).
5. Reinstall the computer cover and connect the power cord. See "Completing the parts replacement"
on page 38.
6. Turn on the computer and leave it on for approximately 10 seconds. Then, turn off the computer by
holding the power switch for approximately five seconds.
7. Repeat step 1 through step 2.
8. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
.
Chapter 2 Installing or replacing hardware
41