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If a supervisor password has been set and is known to the service technician, do the
following to remove the system management password
Step 1.
Turn on the computer.
Step 2.
When the ThinkPad logo is displayed, immediately press F1.
Step 3.
Type the supervisor password to enter the ThinkPad Setup program.
Step 4.
Select Security.
Step 5.
Select Password.
Step 6.
Select System Management Password.
Step 7.
Type the current supervisor password in the Enter Current Password field. Then leave the Enter
New Password field blank, and press Enter twice.
Step 8.
In the Changes have been saved window, press Enter.
Step 9.
Press F10 to save changes and exit the ThinkPad Setup program. The system management
password has been removed.
Power management
To reduce power consumption, the computer has two power management modes: sleep and hibernation.
Sleep mode
When the computer enters sleep mode, the screen goes blank and all internal devices are still powered on
with lower power consumption.
To enter sleep mode, press Fn+4 or open the Start menu.
In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
To resume the computer from sleep mode, press the power button.
Also, in either of the following events, the computer automatically returns from sleep mode and resumes
operation:
• The ring indicator (RI) is signaled by a serial device or a PC Card device.
• The time set on the resume timer elapses.
Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few
seconds before taking any action to reenter operation mode.
Hibernation mode
In hibernation mode, the following occurs:
• The system status, RAM, VRAM, and setup data are stored on the solid-state drive.
• The system is powered off.
Note: If the computer enters the hibernation mode while it is connected to the dock, do not disconnect it
before resuming normal operation. If you do disconnect it and then try to resume normal operation, you will
get an error message, and you will have to restart the system.
.
Chapter 4
Related service information
31
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