Compaq Presario 18XL Maintenance & Service Guide Presario 1800/1800T Serie - Page 30

Battery & Power Management, Back to MSG Contents, Power Modes, Hibernation, Standby

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Presario 1800/1800T Series Models: XL280, XL380, XL381, and XL390 Battery and Power Management This chapter describes power management and proper battery operating practices for Presario 1800XL Series Notebooks. These practices include conservation of AC power and extending the operating life of the battery. The following sections also outline proper methods to start and shut down the Notebook in various situations. Power Modes Presario 1800XL Series Notebooks have three levels of low power: Hibernation, Standby, and Off. Hibernation Hibernation mode helps conserve battery life and protect data. The Notebook automatically enters Hibernation mode when the battery has little power left or when the Notebook (operating on battery power) is in Standby mode for more than one hour. As the Notebook enters Hibernation, it automatically stores the contents of its memory to the hard drive before shutdown. When the Notebook wakes from Hibernation, it returns to its former state. Note: When the Notebook enters or wakes from Hibernation mode, a Progress window is displayed. To activate Hibernation mode, press the Power ª button once. To resume from Hibernation mode, press the Power ª button once. Standby Standby is a low-power mode, also referred to as Sleep mode. The Notebook maintains system information and open files while in Standby mode. Selecting Standby instead of turning off the Notebook when you have finished working has two advantages: 1. It allows the Notebook to wake up faster; 2. It saves more power than the Active-On mode. Ä CAUTION: Unsaved information is lost if the Notebook is turned off prior to system wake-up, or if a power loss occurs while using the AC adapter. To activate Standby/Sleep mode, press Fn+F4 or click Start, click Shut Down, and then select Standby from the options. To resume from Standby/Sleep mode, press any key. PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES BATTERY AND POWER MANAGEMENT 1

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P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1800 S
ERIES
B
ATTERY
AND
P
OWER
M
ANAGEMENT
1
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Battery and Power Management
This chapter describes power management and proper battery operating practices for
Presario 1800XL Series Notebooks. These practices include conservation of AC power and
extending the operating life of the battery. The following sections also outline proper
methods to start and shut down the Notebook in various situations.
Power Modes
Presario 1800XL Series Notebooks have three levels of low power:
Hibernation
,
Standby
,
and
Off
.
Hibernation
Hibernation
mode helps conserve battery life and protect data. The Notebook automatically
enters Hibernation mode when the battery has little power left or when the Notebook
(operating on battery power) is in Standby mode for more than one hour. As the Notebook
enters Hibernation, it automatically stores the contents of its memory to the hard drive
before shutdown. When the Notebook wakes from Hibernation, it returns to its former
state.
Note:
When the Notebook enters or wakes from Hibernation mode, a Progress window is
displayed.
To activate Hibernation mode, press the
Power
ª
button once.
To resume from Hibernation mode, press the
Power
ª
button once.
Standby
Standby
is a low-power mode, also referred to as
Sleep
mode. The Notebook maintains
system information and open files while in Standby mode. Selecting Standby instead of
turning off the Notebook when you have finished working has two advantages: 1. It allows
the Notebook to wake up faster; 2. It saves more power than the Active-On mode.
Ä
CAUTION:
Unsaved information is lost if the Notebook is turned off prior to
system wake-up, or if a power loss occurs while using the AC adapter.
To activate Standby/Sleep mode, press
Fn+F4
or click
Start
, click
Shut Down
, and then
select
Standby
from the options.
To resume from Standby/Sleep mode, press any key.