41
- Power Management
•
Timing out from lack of activity.
•
Allowing the battery to reach the Dead Battery Warning condition.
Your notebook’s system memory typically stores the files on which you are working, open application information,
and any other data required to support the operations in progress. When you resume operation from Sleep mode,
your notebook will return to the point where it left off. You must use the Power and Suspend/Resume button to
resume operation, and there must be an adequate power source available, or your notebook will not resume.
Hibernation (Save-to-Disk) Feature
The Hibernation feature saves the contents of your notebook’s system memory to the hard drive as a part of the
Suspend/Resume mode. You can enable or disable this feature.
Enable or Disable the Hibernation Feature
To enable or disable the Hibernation feature follow these steps:
•
I
F
YOU
ARE
RUNNING
YOUR
NOTEBOOK
ON
BATTERY
POWER
,
BE
AWARE
THAT
THE
BATTERY
CONTINUES
TO
DISCHARGE
WHILE
YOUR
NOTEBOOK
IS
IN
S
LEEP
MODE
,
THOUGH
NOT
AS
FAST
AS
WHEN
FULLY
OPERATIONAL
.
•
D
ISABLING
THE
S
USPEND
/R
ESUME
BUTTON
PREVENTS
IT
FROM
BEING
USED
TO
PUT
YOUR
LIFEBOOK
NOTEBOOK
IN
S
LEEP
OR
S
AVE
-
TO
-D
ISK
MODE
. T
HE
RESUME
FUNCTION
OF
THE
BUTTON
CANNOT
BE
DISABLED
.
•
T
HE
S
LEEP
OR
H
IBERNATION
(S
AVE
-
TO
-D
ISK
)
MODE
SHOULD
NOT
BE
USED
WITH
CERTAIN
PC C
ARDS
. C
HECK
YOUR
PC C
ARD
DOCUMENTATION
FOR
MORE
INFORMATION
.
•
W
HEN
PC C
ARDS
OR
EXTERNAL
DEVICES
ARE
IN
USE
, H
IBERNATION
(S
AVE
-
TO
-D
ISK
)
MODE
CANNOT
RETURN
TO
THE
EXACT
STATE
PRIOR
TO
SUSPENSION
BECAUSE
ALL
OF
THE
PERIPHERAL
DEVICES
WILL
BE
RE
-
INITIALIZED
WHEN
THE
SYSTEM
RE
-
STARTS
.
•
I
F
YOUR
NOTEBOOK
IS
ACCESSING
INFORMATION
WHEN
YOU
ENTER
S
LEEP
OR
H
IBERNATION
(S
AVE
-
TO
-D
ISK
)
MODE
,
CHANGES
TO
OPEN
FILES
ARE
NOT
LOST
. T
HE
FILES
ARE
LEFT
OPEN
AND
MEMORY
IS
KEPT
ACTIVE
DURING
S
LEEP
MODE
,
OR
THE
MEMORY
IS
TRANSFERRED
TO
THE
INTERNAL
HARD
DRIVE
DURING
H
IBERNATION
MODE
.
•
T
HE
MAIN
ADVANTAGE
OF
USING
THE
H
IBERNATION
(S
AVE
-
TO
-D
ISK
)
FUNCTION
IS
THAT
POWER
IS
NOT
REQUIRED
TO
MAINTAIN
YOUR
DATA
. T
HIS
IS
PARTICULARLY
IMPORTANT
IF
YOU
WILL
BE
LEAVING
YOUR
LIFEBOOK
NOTEBOOK
IN
A
SUSPENDED
STATE
FOR
A
PROLONGED
PERIOD
OF
TIME
.
T
HE
DRAWBACK
OF
USING
H
IBERNATION
MODE
IS
THAT
IT
LENGTHENS
THE
POWER
DOWN
AND
POWER
UP
SEQUENCES
AND
RESETS
PERIPHERAL
DEVICES
.
•
Y
OUR
SYSTEM
IS
SET
TO
USE
THE
M
AX
B
ATTERY
POWER
SCHEME
WHEN
RUNNING
ON
BATTERY
POWER
. I
F
YOU
CHANGE
THE
POWER
SCHEME
TO
A
DIFFERENT
PROFILE
,
YOUR
BATTERY
LIFE
MAY
VARY
.
