IBM ThinkPad X20 Hardware Maintenance Manual page 33

Note: Screen blank mode in Windows 98 is called standby
mode in Windows 95.
To enter screen blank mode, press Fn + F3. 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.
Note: Screen blank mode in Windows 98 and Windows
2000 is called standby mode in Windows 95.
To enter standby mode, do any of the following:
v Press Fn + F4.
v Close the LCD cover. (To prevent the computer from
entering standby mode when the LCD is closed, click
Will not suspend even if LCD is closed in the Power
Management Properties window. Then only the LCD
turns off.)
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 the time set.
v If the AC adapter is plugged in.
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.)
Note: Even if you don't set the low-battery alarm, the
charge indicator lets you know that the battery is
low, and then the computer enters the power-saving
mode automatically. This default low-battery
behavior is independent of the operating system; so
if you have set the low-battery alarm, the computer
may not do what you specified. It chooses either
your setting or the default setting, whichever is
appropriate.
Any one of the following events causes the computer to
resume operation from standby mode:
v The Fn key is pressed.
v The LCD cover is opened.
v The ring indicator (RI) is signaled by a serial device or a
PC Card device. The power switch is turned on.
Chapter 2. General descriptions
29