Dell Latitude LM - Manual (Page 33)

Customizing System Features 2-11
Smart CPU Mode
SMART CPU MODE allows the computer to slow down the
microprocessor automatically if it is not being used. Set-
tings for this option are:
•
ENABLED (the default) allows the computer to slow
down the microprocessor when it is inactive.
•
DISABLED keeps the microprocessor running at its
normal operating speed regardless of microprocessor
inactivity.
To increase battery operating time, set the SMART CPU
MODE option to ENABLED .
When the SMART CPU MODE option is enabled and the
microprocessor is inactive, the computer slows the
microprocessor to save power.
NOTES: Some communications software may not work
properly when
SMART CPU MODE is enabled. Dell recom-
mends that you set SMART CPU MODE to DISABLED if you
are using communications software.
Interactive application programs should function well
when
SMART CPU MODE is enabled. (Examples of inter-
active programs include spreadsheet, text editor,
graphics design, entertainment, educational, and utility
programs.) However, you may experience performance
degradation when recalculating a large spreadsheet or
during an extensive screen redraw in a graphical pro-
gram. Benchmark utilities may not perform as intended
when doing microprocessor speed tests. If the software
you use suffers significant performance degradation, set
SMART CPU MODE to DISABLED .
A change to the SMART CPU MODE option takes effect
immediately (rebooting is not required).
Alarm Resume
ALARM RESUME tells the computer to resume normal
operation when it is in suspend mode and detects an
alarm from the system clock. Such alarms can be set
through various application programs. In order for the
alarms in these programs to work, this option must be set
to
ON . If this option is set to OFF (the default), the com-
puter remains in suspend mode when it detects an alarm.
Exit Menu Options
The following subsections explain each option in the Exit
menu of the Setup program (Figure 2-5). The same infor-
mation is also available in the topic titled “Exit Menu” in
the online System User’s Guide.