Lenovo m90z 0800 Guia Do Utilizador
Erasing lost or forgotten passwords (clearing CMOS)
This section provides instructions on how to erase lost or forgotten passwords,
such as a user password.
such as a user password.
To erase a lost or forgotten password, do the following:
1.
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.
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 16.
3.
Locate the Clear CMOS /Recovery jumper on the system board. See “System
board part and connector locations” on page 13.
board part and connector locations” on page 13.
4.
Move the jumper from the standard position (pin 1 and pin 2) to the
maintenance position (pin 2 and pin 3).
maintenance position (pin 2 and pin 3).
5.
Close the computer cover and connect the power cord. See “Completing the
parts replacement” on page 55.
parts replacement” on page 55.
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.
off the computer by holding the power switch for approximately five seconds.
7.
Repeat step 1 through step 3.
8.
Move the Clear CMOS /Recovery jumper back to the standard position (pin 1
and pin 2).
and pin 2).
9.
Close the computer cover and connect the power cord. See “Completing the
parts replacement” on page 55.
parts replacement” on page 55.
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User Guide