Compaq Presario 1800 Presario 1800XL Series Maintenance and Service Guide - Page 29

Battery and Power Management, Power Modes, Hibernation, Standby - ac adapter

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Presario 1800 Series Models: XL180, XL181, XL182, XL183, XL185, and XL190, XL191, XL192 Battery and Power Management This chapter describes power management and proper battery operating practices for Presario 1800XL Notebooks. These practices include conservation of AC power and extending the operating life of the battery. The following sections also outline proper methods to startup and shutdown the Notebook in various situations. Power Modes Presario 1800XL 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 the Notebook 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 button once. To resume from Hibernation mode, press the Power button once. Standby Standby mode 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 mode instead of turning off the Notebook when finished has two advantages: 1. It allows the Notebook to wake up faster than turning it off; 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, select the Shut Down option, and then Standby. 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 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Battery and Power Management
This chapter describes power management and proper battery operating practices for
Presario 1800XL Notebooks. These practices include conservation of AC power and
extending the operating life of the battery. The following sections also outline proper
methods to startup and shutdown the Notebook in various situations.
Power Modes
Presario 1800XL 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 the Notebook 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
button once.
To resume from Hibernation mode, press the
Power
button once.
Standby
Standby mode 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
mode instead of turning off the Notebook when finished has two advantages: 1. It allows
the Notebook to wake up faster than turning it off; 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
, select the
Shut Down
option, and then
Standby
.
To resume from Standby/Sleep mode, press any key.