IBM ThinkPad 340 Series Hardware Maintenance Manual page 339

Standby Mode:
occurs:
The LCD backlight turns off.
The hard disk motor stops.
The CPU clock is set to the lowest speed.
Events that cause entering of standby mode:
Standby requested by the Fn key. (Fn+F3)
No activity under auto-standby enabled by the
feature utility.
Events that cause exiting or resuming of standby mode:
(Resume) Any key operation.
Suspend Mode:
suspend mode, the following occurs:
The LCD backlight turns off.
The LCD power is powered-off.
The hard disk is powered-off.
The CPU clock is set to the lowest speed.
The CPU is stopped.
In the ThinkPad Features Program, the computer can
be set to "Will not suspend even if LCD is closed.".
When the computer is powered with ac power and is
used with one of the following IBM PC cards, the
computer will only enter the standby mode . The PC
card and application program remain active.
– 3270 Emulation Credit Card Adapter
– 5250 Emulation Credit Card Adapter
– Token-Ring 16/4 Credit Card Adapter
– Credit Card Adapter for Ethernet
The following conditions prevent the computer from
entering the suspend mode.
While the communication link is running.
When a serial mouse or external pointing device has
been selected in the Config menu of the Easy-Setup.
Events that cause the computer to enter the suspend
mode:
Suspend mode is requested by the Fn key (Fn+F4).
The LCD is closed.
The keyboard is opened.
The specified time has elapsed from the last
operation with the keyboard, mouse, hard disk drive,
parallel connector, diskette drive, or the AC Adapter is
plugged in. The time is specified by Suspend Timer
in the ThinkPad Features program.
The battery condition is low. The battery power
indicator blinks (orange).
The PS2 OFF command is set in the ThinkPad
Features program.
When in standby mode the following
When the computer enters the
ThinkPad 755CD, 755CDV (9545)
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