How To Remove The Hard Disk Password; Power Management; Screen Blank Mode - Lenovo ThinkPad Edge L330 Hardware Maintenance Manual

2. Remove the battery pack. For instructions on how to remove the battery pack, see "1010 Battery
pack" on page 56.
3. Remove the backup battery. For instructions on how to remove the backup battery, see "1100 Thermal
fan assembly " on page 72.
4. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt will not
be displayed. The power-on password has been removed.
5. Reinstall the backup battery and the battery pack.
If a supervisor password has been set and is known to the service technician, do the following to remove
the power-on password:
1. Turn on the computer.
2. When the ThinkPad logo is displayed, immediately press F1.
3. Type the supervisor password to enter the ThinkPad Setup program.
4. Select Security.
5. Select Password.
6. Select Power-On Password.
7. Type the current supervisor password in the Enter Current Password field. Then, leave the Enter
New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press Fn+F10 to save changes and exit the ThinkPad Setup program.

How to remove the hard disk password

Attention: If User only mode is selected and the user hard disk password has been forgotten and cannot
be made available to the service technician, neither Lenovo nor Lenovo authorized service technicians
provide any services to reset the user hard disk password, or to recover data from the hard disk drive. The
hard disk drive can be replaced for a scheduled fee.
To remove a user hard disk password that has been forgotten, when the supervisor password and the master
hard disk password are known, do the following:
1. Turn on the computer.
2. When the ThinkPad logo is displayed, immediately press F1 to enter the ThinkPad Setup program.
3. Select Security.
4. Select Password.
5. Select Hard-disk x password where x is the letter of the hard disk drive. A pop-up window opens.
6. Select Master HDP, where HDP stands for hard disk password.
7. Type the current master hard disk password in the Enter Current Password field. Then, leave the Enter
New Password field blank, and press Enter twice.
8. Press Fn+F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and
the master hard disk password have been removed.

Power management

To reduce power consumption, the computer has three power management modes: screen blank, sleep,
and hibernation.

Screen blank mode

If the time set on the "Turn off monitor" timer in the operating system expires, the LCD backlight turns off.
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Hardware Maintenance Manual