IBM 720X (9552) User Manual
Power Management Features
The suspend and resume functions are unique methods
used to save battery power. In suspend mode, all tasks
are suspended and their present states are stored in
memory to save power. Also, the system enters a
used to save battery power. In suspend mode, all tasks
are suspended and their present states are stored in
memory to save power. Also, the system enters a
sleep
state where only a minimum amount of power is used.
When the computer returns to normal operation using the
resume function, the computer restores the same states as
when it entered suspend mode.
resume function, the computer restores the same states as
when it entered suspend mode.
Full and Partial Suspend Modes:
Suspend mode
might be referred as full-suspend mode, as compared to
partial-suspend mode.
partial-suspend mode.
The computer enters partial-suspend mode when an
application software program interferes with the power
management capability of the computer and prevents it
from entering full-suspend mode. The following sounds
indicate suspend mode has occurred:
application software program interferes with the power
management capability of the computer and prevents it
from entering full-suspend mode. The following sounds
indicate suspend mode has occurred:
One beep for full-suspend mode
Two beeps for partial-suspend mode
(No beep is heard if the
Power controller beep
parameter
is set to off in the Set Advanced Features program.)
The computer enters suspend mode when:
The LCD is closed (the switch is located on the
voltage converter card).
voltage converter card).
The specified time has elapsed from the last
operation with the keyboard, mouse, hard disk drive,
parallel connector, diskette drive, and AC adapter is
plugged in. The time is specified by
operation with the keyboard, mouse, hard disk drive,
parallel connector, diskette drive, and AC adapter is
plugged in. The time is specified by
System
suspend
in the Set Advanced Features program.
When a battery-low condition exists, the battery
power indicator blinks (orange).
power indicator blinks (orange).
The
PS2 OFF
command is set in the Set Advanced
Features program.
The operating temperature is exceeded.
The system returns to normal operation when:
The LCD is opened.
PS2 ON HH:MM:SS
command was set in the Set
Advanced Features program before entering suspend
mode.
mode.
A “Ring indicator” signal on the communication
interface is detected.
interface is detected.
Either button of the pointing stick is pressed.
You can replace the battery pack during full-suspend
mode. Never replace the battery pack during
partial-suspend mode. If the battery pack is replaced
during suspend mode with the LCD opened, close the LCD
and open it again to return to normal operation.
mode. Never replace the battery pack during
partial-suspend mode. If the battery pack is replaced
during suspend mode with the LCD opened, close the LCD
and open it again to return to normal operation.
ThinkPad 700, 700C, 720, 720C (9552)
81