Power Management - Lenovo 3000 N100 Hardware Maintenance Manual

Related service information
10. Select Yes in the Setup Configuration window.

Power management

Note: Power management modes are not supported for APM operating system.
To reduce power consumption, the computer has three power management modes:
screen blank, standby, 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.
To end screen blank mode and resume normal operation, press any key.
Standby mode
When the computer enters standby mode, the following events occur in addition to
what occurs in screen blank mode:
v The LCD is powered off.
v The hard disk drive is powered off.
v The CPU stops.
To enter standby mode, press Fn+F4.
In certain circumstances, the computer goes into standby mode automatically:
v If a "suspend time" has been set on the timer, and the user does not do any
v If the battery indicator blinks orange, indicating that the battery power is low.
To cause the computer to return from standby mode and resume operation, do one
of the following:
v Press the Fn key.
v Open the LCD cover.
v Turn on the power switch.
Also, in the following event, the computer automatically returns from standby
mode and resumes operation:
v The time set on the resume timer elapses.
22
MT 0689, 0690, 0768
6. Select Hard-disk x password, where x is the letter of the hard disk drive. A
pop-up window opens.
7. Select Master HDP.
8. Type the current master HDP in the Enter Current Password field. then leave
the Enter New Password field blank, and press Enter twice.
9. Press F10.
Both user HDP and master HDP will have been removed.
operation with the keyboard, the hard disk, the parallel connector, or the
diskette drive within that time.
(Alternatively, if Hibernate when battery becomes low has been selected in the
"Power Management Properties" window, the computer goes into hibernation
mode.)
Note: The computer does not accept any input immediately after it enters
standby mode. Wait a few seconds before taking any action to reenter
operation mode.