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Power Management Settings:
Dell™ Latitude™ CS/CS
x
Portable Computers 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
Table 1
identifies the power management key combinations.
Table 1. Key Combinations to Activate/Deactivate Features
*
These key combinations do not function with the Advanced Configuration and Power Interface (ACPI
).
Closing the Display
One way to conserve power on the computer is to close the display when the computer is not in use. When you close the display and an external
Experimenting With Power Conservation
Standby Mode
Using Key Combinations
Suspend-to-Disk Mode
Closing the Display
Power Management Properties for Microsoft Windows 98
Suspend Mode
Power Management Properties for Microsoft Windows NT
NOTE: To use key combinations on an external keyboard, enable the
External Hot Key
option in the System Setup program, and
press <Scroll Lock> instead of <Fn>.
Feature
Activate/Deactivate
Turn off display
To activate, press <Fn><d>.*
To deactivate, move the cursor or press a key on the integrated or external keyboard. (If nothing
happens, the computer may be in
suspend
or
standby
mode. Press the power button to resume
normal operation.)
Turn off hard-disk drive
To activate, press <Fn><h>.*
Automatically deactivates when the hard-disk drive is accessed.
NOTE: If a modular hard-disk drive is installed in the C/Dock media bay, you cannot turn off the
hard-disk drive by pressing <Fn><h>
.
Suspend mode
To activate, press <Fn><Esc>.
To deactivate, press the power button.
Suspend-to-disk mode
To activate, press <Fn><a>. (On a French keyboard, press <Fn><q>.)*
To deactivate, press the power button.
Summary of Contents for Latitude CS
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