Erasing A Lost Or Forgotten Password (Clearing Cmos) - Lenovo 6423 Installation Manual

Erasing a lost or forgotten password (clearing CMOS)

This section contains instructions on erasing some lost or forgotten passwords,
such as a user password. For more information about lost or forgotten passwords,
go to the ThinkVantage Productivity Center program.
To erase a forgotten password:
10. Close the computer cover and connect the power cord. See Chapter 4,
1. Open the computer cover. See "Opening the cover" on page 12.
2. Access the system board. See "Accessing system board components and
drives" on page 15.
3. Locate the Clear CMOS/Recovery jumper on the system board. See
"Identifying parts on the system board" on page 9.
4. Move the jumper from the standard position (pin 1 and pin 2) to the
maintenance or configure position (pin 2 and pin 3).
5. Lower the drive-bay assembly and reconnect any cables that were
disconnected.
6. Close the computer cover and connect the power cord. See Chapter 4,
"Completing the parts replacement," on page 43.
7. Restart the computer, leave it on for approximately 10 seconds. Turn off the
computer by holding the power switch for approximately 5 seconds. The
computer will turn off.
8. Repeat steps 1 through 3 on page 23.
9. Move the Clear CMOS/Recovery jumper back to the standard position (pin 1
and pin 2).
"Completing the parts replacement," on page 43.
Chapter 3. Installing options and replacing hardware
23