compaq presario 1200xl User Manual

4 BATTERY OPERATIONSPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Power Management
The following power management features are available for conserving AC power and 
extending battery operating time:
Power Management Settings
 
Low-Power Modes
 
Battery Operating Life
 
Servicing the Notebook - Full Off Mode
 
Rebooting After a Lockup
 
Recovering From a Loss of Electrical Power
 
Power Management Settings
Differing patterns of...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESBATTERY OPERATIONS 5
Presario 1200XL Series
Model XL300, XL300A, and XL300B
The following table shows the default settings for each Power Scheme.
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.
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CAUTION: The settings on the Alarms tab is preset for the...

6 BATTERY OPERATIONSPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
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...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESBATTERY OPERATIONS 7
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Low-Power Modes
Compaq Presario 1200 Series Notebook Computers have two levels of low-power 
management: Hibernation and Standby.
Hibernation 
Hibernation helps conserve battery life and protect data. Your 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...

8 BATTERY OPERATIONSPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
The following table shows the conditions and indicators for entering and exiting the various 
power management modes, Standby, Hibernation, and Off.
Power Management Modes
StandbyActivationDeactivationIndicators
Manual Press Fn+F4 key 
combination or click 
the Start button on 
the Windows taskbar, 
then point to 
Shutdown and click 
Standby. Press any key. Flashing...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESBATTERY OPERATIONS 9
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Important: The manual shutdown mode is not recommended unless the standard 
shutdown mode does not work.
Battery Operating Life
Battery operating life is affected by variables such as: 
Power conservation settings 
Hardware configuration 
Software applications Installed options
Display brightness 
Hard drive usage 
Changes in operating temperature 
Type and...

10 BATTERY OPERATIONSPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
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...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 1
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Troubleshooting
This section provides troubleshooting information for Compaq Presario 1200XL Series 
Portable Notebook. The basic steps in troubleshooting are:
1. Preliminary Steps
2. The Power-On Self-Test (POST)
3. The recommended actions you can take, described in the diagnostic tables later in this 
section, if you are unable to run POST, or if POST displays an error...

2 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
7. Ensure that the battery pack is inserted in the Notebook and that it is connected to an 
external AC power source. 
When these preliminary steps are completed, you are ready to run 
POST. 
Clearing the Power-On Password
Note: Clearing the Power-on password also removes all Notebook setup attributes that 
are programmed in the CMOS.
If you do not know the password, clear...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 3
Presario 1200XL Series
Model XL300, XL300A, and XL300B
5. To clear the password, remove the RTC battery by prying it out of the socket with a 
non-metallic object. 
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CAUTION: When removing the RTC battery from the system board, it is extremely 
important to use a non-metalic object to pry up the RTC battery to prevent damage 
to the system bord or the battery.
6. Allow at least 10 seconds to pass. Then replace the battery,...