Dell Latitude L400 User Manual
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Power Management Settings:
Dell™ Latitude™ L400 User's Guide
Experimenting With Power Conservation
In general, the lower the value you set for each power conservation feature, the longer the
battery's charge
lasts. On the other hand, setting high
values tends to optimize the computer's performance.
To evaluate the way that different settings affect how long you can operate the computer on battery power versus the relative efficiency of how the
software performs, experiment as follows:
l
Use the computer with all the options set at their default values.
l
Use the computer with all the options disabled or set to Off.
l
Use the computer with all the options set to their minimum or maximum values.
Using Key Combinations
identifies the power management key combinations.
Table 1. Key Combinations
* This key combination does not function under an operating system with the ACPI, such as Microsoft® Windows® 98, Windows 2000, or
Windows Me.
Closing the Display
Experimenting With Power Conservation
Suspend-to-Disk Mode for Windows NT
Hibernate Mode for Windows 98, Windows 2000, and Windows Me
Power Management Properties for Windows 98
Power Management Properties for Windows NT
Power Options Properties for Windows 2000 and Windows Me
NOTE: For Advanced Configuration and Power Interface (ACPI) compliant systems, power management settings, such as key
combinations and standby or hibernate mode, are controlled exclusively by the Power Management Properties or Power Options
Properties window in the Control Panel. See
Power Management Properties for Windows 98
Power Options Properties for Windows
2000 and Windows Me
. In other operating systems, power management settings can be controlled from the Power screen in the
system
setup program
.
NOTE: The key combinations in Table 1 can be used from an external keyboard by enabling the External Hot-Key option on the
Advanced screen in the
system setup program
, and then pressing
Feature
Activate/Deactivate
Turn off display
To activate, press
To deactivate, move the cursor or press a key on the
integrated or external keyboard. (If nothing happens, the
computer may be in
the power button to resume normal operation.)
To activate, press
To deactivate, press the power button.
mode*
To activate, press
press .)
To deactivate, press the power button.
View battery status icon
Press