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Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Battery and Power Management
This chapter describes power management and proper battery operating practices for
Presario 1700XL Series Notebooks. These practices include conservation of AC power and
extending the operating life of the battery. The following sections also outline the proper
methods for starting and shuting down the Notebook in different situations.
Power Modes
Compaq Presario 1700 Series Notebook Computers have three levels of low-power
management: Hibernation, Standby, and Off.
Hibernation
Hibernation mode helps conserve battery life and protect data. The Notebook automatically
enters Hibernation 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 it
shuts down. When the Notebook comes out of Hibernation, it returns to its former state.
ª
Activate Hibernation mode by pressing the Power
ª
To restart the Notebook, press the Power
button once. When the Notebook enters or
button once.
wakes from Hibernation mode, a Progress window is displayed on the screen.
Standby
Standby mode is a low-power mode, also referred to as Sleep mode. Selecting Standby
mode instead of turning off the Notebook when finished has two advantages: 1. It allows
the Notebook to wake up more quickly than if it had been turned off completely; 2. It saves
more power than the active (On) mode.
Activate Sleep mode by pressing Fn+F4. Or click Start, select the Shut Down option, and
click Standby.
CAUTION:
Ä
Standby mode. However, 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.
The Notebook maintains system information and open files while in
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ATTERY AND POWER MANAGEMENT
1
Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Full Off
Off mode consumes no power. However, the battery charges while the Notebook is in Off
mode if the battery is installed and the Notebook remains plugged into external AC power.
Note: Unsaved information is lost if the Notebook is shut down without first saving the
data.
To activate Off mode, click the Start button on the Windows taskbar, click Shut Down,
then select Shut down from the options.
ª
To restart the Notebook from Off mode, press the Power
CAUTION: The Notebook must be in Off mode (completely shut down) when
installing or replacing components. Follow the instructions for putting the
Å
Notebook into Off mode, unplug it from the outlet, and remove the battery pack
before servicing any parts.
Summary of Power Modes
The following table outlines the procedures for entering and exiting the various power
modes and the external indicators for each mode.
button once.
Standby Mode Hibernation Mode Off Mode
Automatic
Activation
Manual
Activation
Deactivation Press any key. Press Power
Indicators Power light is off,
*The Notebook will not automatically enter Standby or Hibernation mode if using AC power.
**Important: The Manual Shutdown procedures are not recommended unless the Standard
Shutdown is unsuccessful.
15 minutes if using
battery power.
Notebook will not
automatically enter
Standby mode if
using AC Power.
Press Fn+F4 key
combination or click
the Start button on
the Windows
taskbar, then point
to Shut Down and
click Standby.
When battery is low, or
after 1 hour of Standby.*
Notebook will not
automatically enter
Hibernation mode if
using AC Power.
Press Power ª button
once.
ª button
once.
screen is blank.
Standard Shutdown:
Perform normal
Windows shutdown
using the Start button
on the Windows
taskbar.
Manual Shutdown**:
Press and hold down
the Power
4 seconds.
Press Power ª button
once.
Power light is off,
screen is blank.
ª button for
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ATTERY AND POWER MANAGEMENT
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1700XL S
ERIES
Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Power Management Settings
Different patterns of Notebook use determine the level of power management required.
These power management levels can be initiated based on the amount of time passed
since the last system activity. System activity includes keyboard strokes, mouse
movement, DVD/CD playback (while under program control that monitors Standby), and
modem use.
Power Schemes
You may access and select different settings or Power Schemes through Power
Management on the Control Panel. The default Power Schemes are Home/Office Desk,
Portable/Laptop, and Always On. The settings can be customized by changing the following
options:
• System Standby: length of inactivity before the Notebook goes into Standby
mode
• Turn Off Monitor: length of inactivity before the screen times out and goes blank
• Turn Off Hard Disks: length of inactivity before the hard drive goes into low
power mode
Important: The setting for the Hard Disk must be less than or equal to the setting
for the system. If the Notebook is on a network, Compaq recommends that System
Standby be set to Never.
The following table shows the default settings for each Power Scheme.
Power Scheme Always On
AC Power
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
Never
15 minutes
1 hour
Battery Power
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
5 minutes
2 minutes
3 minutes
Portable/
Laptop
Never
3 hours
15 minutes
15 minutes
Never
10 minutes
Home/
Office Desk
20 minutes
15 minutes
30 minutes
1 minute
2 minutes
10 minutes
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ATTERY AND POWER MANAGEMENT
3
Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Alarms
The Notebook can be set to Alarm when the battery power level is reduced or when it
reaches a critical low level. The Notebook can also be set automatically to enter a
low-power mode when the battery reaches a specific power level.
CAUTION:
Ä
best. Changing any of these settings could cause the Notebook to function
improperly. It is recommended that these settings be left at their default values.
The settings on the Alarms tab are preset for the Notebook to run at its
Default Alarm Settings
Setting Low Battery Critical Battery
Alarm power level 10% 0%
Notification Tex t P o w e r No Action
Power Mode No Action Hibernation
Active Enabled Enabled
SpeedStep Technology Modes
SpeedStep™ Technology features several speed options for processor response to
low-power conditions. These include the following settings:
• Maximum Performance: always at high speed
• Battery Optimized: always at low speed
• Reversed: opposite recommended
• Recommended: performance on AC, Battery Optimized on battery
• Disabled: no run-time support, high speed
SpeedStep options can be accessed in three ways:
• Access F10 Setup during startup and select the Advanced screen.
• Click Start>Settings>Control Panel>Power Options>Intel(R)
(TM)
SpeedStep
technology tab.
• Double-click the Flag icon on the Windows taskbar to open the Intel(R)
(TM)
SpeedStep
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ATTERY AND POWER MANAGEMENT
technology dialog box.
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1700XL S
ERIES
Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Servicing the Notebook – Full Off Mode
The Notebook must be turned off completely when installing or replacing components in
the system. Follow the instructions for putting the Notebook into Off mode properly,
unplugging it from the outlet, and removing the battery (see Battery Pack Removal
Sequence).
Rebooting After a Lockup
To reboot the Notebook (from a cold start) when the keyboard is frozen or the screen is
locked, press and hold down the Power button for at least four seconds; this causes a
manual shutdown. Then, restart your Notebook with a single press of the Power
ª
If the Notebook still does not recover, press the Power
button and hold for four seconds
ª
button.
to shut it down, then remove the battery or unplug the AC power for at least 30 seconds.
Reinsert the battery or reconnect AC power and press the Power
ª
button once to reboot.
Recovering From a Loss of Electrical Power
Loss of electrical power causes the Notebook to turn off automatically. This may cause loss
of data because the Microsoft Windows operating system is not able to close all files and
programs properly.
Loss of power may be caused by one of the following:
• Electrical power service is interrupted.
• The power cord is accidentally disconnected.
If power surges or sags, the display and status lights may flicker, and the Notebook may
automatically restart. If an improper shutdown occurs, the Microsoft Windows utility
program ScanDisk, runs automatically once power is restored. ScanDisk determines if the
improper shutdown caused any errors on the hard disk. These errors may occur if the
Microsoft Windows operating system is not able to close all files properly before the
shutdown. If no errors are found, the restart process continues. If ScanDisk does detect
errors, follow the instructions on the screen to continue the restart process. Work that was
not saved before the loss of power or shutdown may be lost.
If a power failure occurs, or the power cord disconnects while the Notebook is turned on,
turn it off until normal service is restored. The next time the Notebook is turned on,
ScanDisk may run to check the hard disk for errors caused by improper shutdown.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Increasing Battery Pack Operating Time
Battery pack operating time varies depending on several factors. To avoid unnecessary
replacement, consider the following when determining how long a charged battery pack
should last:
• Power management settings
• Hardware configuration
• Software applications
• Installed options
• Display brightness
• Hard drive usage
• Changes in operating temperature
• Type and number of installed PC cards
Note: The power consumption requirements for PC cards vary widely. Some cards drain
the battery pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the
energy required by the computer and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps:
• Set the power conservation levels in the Power Management utility to Maximum.
• Customize the timeout value to work more efficiently with the applications. The
amount of battery life depends on the values selected.
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ATTERY AND POWER MANAGEMENT
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1700XL S
ERIES
Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Maximizing the Energy Stored
To maximize the energy stored in the battery pack, follow these guidelines:
• Condition the battery pack at least every 30 days to improve overall battery
performance.
• Keep a battery pack in the Notebook when using it with AC power to supply the
battery pack with a constant trickle charge.
• Store the battery pack in a cool, dry place when not in use.
Conditioning a Battery Pack
CAUTION:
Ä
a battery pack.
To avoid a loss of data, ensure that all data is saved before discharging
To condition a battery pack, complete the following steps:
1. Plug in the AC adapter and allow the battery to charge until the Fast Charge arrow
on the display disappears. Your battery gauge may read 100 percent for a period of
time before the arrow disappears. Do not unplug the AC adapter until the arrow
disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches
hibernation and turns itself off.
CAUTION:
Ä
restart with step 1. You may use the computer while the battery is draining.
Do not unplug the AC adapter during this process or you will need to
3. The battery is reconditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows battery pack charge times by model.
Battery Charge Time
Li-ION Battery Pack Charge Time
Computer On Line 4.5 hours premature termination
Computer Off Line 2.50 hours
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1700XL S
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ATTERY AND POWER MANAGEMENT
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Presario 1700 Series
Models: XL260, XL261, XL262, XL264, XL265, XL266, XL274, XL275, XL360, XL361,
XL362, XL363, XL364, XL365, XL366, XL367, XL368, XL369, XL370, XL371, XL372, XL373,
XL374, XL375, XL376, XL377, and XL378
Disposing of a Used Battery Pack
In the interests of safeguarding our environment, Compaq Computer Corporation
recommends that nickel metal hydride (NiMH) and lithium-ion (Li-ion) battery packs be
recycled. Battery packs should be handled in accordance with country, state, province, or
local regulations.
CAUTION:
Ä
pack not only damages the pack and makes it unusable, but also exposes
potentially harmful battery components.
Never attempt to open or service a battery pack. Opening a battery
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ATTERY AND POWER MANAGEMENT
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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