IBM ThinkPad 340 Series Hardware Maintenance Manual page 340

Events that cause exiting or resuming of the suspend
mode:
(Resume) The LCD is opened.
(Resume) The keyboard is closed.
(Resume) Real time clock alarm signaled.
(Resume) Ring indicator (RI) signaled by serial or
PCMCIA device.
(Resume) The Fn key is pressed.
(Exit) Timer conditions are satisfied to enter
hibernation mode.
Hibernation Mode:
following occurs:
The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered-off.
Events that prevent the computer from entering the
hibernation mode.
A serial mouse or external pointing device has been
selected in the Config menu of the Easy-Setup.
The computer is powered with ac power and one of
the following IBM PC cards is used.
– PCMCIA Data/FAX Modem
– High Speed PCMCIA Data/FAX Modem
– 3270 Emulation Credit Card Adapter
– 5250 Emulation Credit Card Adapter
– Token-Ring 16/4 Credit Card Adapter
– Credit Card Adapter for Ethernet
Events that cause the computer to enter the hibernation
mode.
Pressing the Fn key (Fn+F12).
Timer conditions are satisfied in suspend mode.
Critical low battery condition.
Event that causes the computer to exit the hibernation
mode.
The power-on switch is operated.
When power is turned on, the hibernation history of the
boot record on the hard disk is recognized and system
status is restored from the hard disk to resume operation.
Port Replicator Power Overload:
power shut-downs occur while using PCMCIA-2 devices
through a port replicator, suspect an over-current problem.
Some PCMCIA devices use too much power, and if the
maximum usage of each device occurs simultaneously, the
total current could exceed the replicator limit, thereby
causing a power shut down. Remove each device one at
a time and repeat the sequence until problem fails to
return. Ten determine the cause.
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IBM Mobile Systems HMM
When in hibernation mode, the
If intermittent