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.

Note: If you are using the ACPI operating system, you can change the action of

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

operation with the keyboard, the TrackPoint®, the hard disk, the parallel
connector, or the diskette drive within that time.

v If the battery indicator blinks orange, indicating that the battery power is low.

(Alternatively, if Hibernate when battery becomes low has been selected in the
“Power Management Properties” window, the computer goes into hibernation
mode.)

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 either of the following events, the computer automatically returns from

standby mode and resumes operation:

v
The ring indicator (RI) is signaled by a serial device or a PC Card device.

v The time set on the resume timer elapses.

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.

Hibernation mode
In hibernation mode, the following occurs:

v The system status, RAM, VRAM, and setup data are stored on the hard disk.

v The system is powered off.

Note: If the computer enters the hibernation mode while it is docked to the
docking station, do not undock it before resuming normal operation. If you
do undock it and then try to resume normal operation, you will get an error
message, and you will have to restart the system.

To cause the computer to enter hibernation mode, do any of the following:

v Press the Fn+F12 keys.

v If you are using the ACPI operating system and have defined one of the

following actions as the event that causes the system to go into hibernation
mode, perform that action.

– Closing the lid.

– Pressing the power button.

– Pressing Fn+F4 keys.

Related service information

General descriptions 25