49
- Power Management
Standby Mode
Standby mode in Windows saves the contents of your system memory during periods of inactivity by
maintaining power to critical parts. This mode turns off the CPU, display, hard drive, and all other internal
components except those necessary to maintain system memory and for restarting.
Your notebook can be put in Standby mode by:
•
Pressing the Power/Suspend/Resume button when your system is turned on.
•
Selecting Standby from the
Turn off computer
menu.
•
Timing out from lack of activity.
•
Allowing the battery to reach the Dead Battery Warning condition.
Your notebook’s system memory typically stores the file on which you are working, open application
information, and any other data required to support operations in progress. When you resume operation
from Standby mode, your notebook will return to the point where it left off. You must use the
Power/Suspend/Resume button to resume operation, and there must be an adequate power source
available, or your notebook will not resume.
■
I
F RUNNING YOUR NOTEBOOK ON BATTERY POWER
,
BE AWARE THAT THE BATTERY CONTINUES TO DISCHARGE
WHILE YOUR NOTEBOOK IS IN
S
TANDBY MODE
,
THOUGH NOT AS FAST AS WHEN FULLY OPERATIONAL
.
■
D
ISABLING THE
P
OWER
/S
USPEND
/R
ESUME BUTTON PREVENTS IT FROM BEING USED TO PUT THE NOTEBOOK INTO
S
LEEP OR
H
IBERNATION
(S
AVE
-
TO
-D
ISK
)
MODE
. T
HE BUTTON RESUME FUNCTION CAN
’
T 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 RESTARTS
.
■
I
F YOUR NOTEBOOK IS ACTIVELY ACCESSING INFORMATION WHEN YOU ENTER
S
TANDBY OR
H
IBERNATION MODE
,
CHANGES TO OPEN FILES ARE NOT LOST
. F
ILES ARE LEFT OPEN AND MEMORY IS KEPT ACTIVE DURING
S
TANDBY
MODE OR THE MEMORY IS TRANSFERRED TO THE INTERNAL HARD DRIVE DURING
H
IBERNATION MODE
.
■
T
HE MAIN ADVANTAGE OF USING
H
IBERNATION IS THAT POWER IS NOT REQUIRED TO MAINTAIN YOUR DATA
. T
HIS IS
PARTICULARLY IMPORTANT IF YOU WILL BE LEAVING YOUR 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
.