2–14 Software Guide
Power
Setting SpeedStep Preferences
SpeedStep settings can be accessed from either the SpeedStep 
window or the SpeedStep icon. In addition, SpeedStep can be 
enabled or disabled in Computer Setup.
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If the SpeedStep window and icon are not accessible, they may be 
disabled in Computer Setup. To enable the window and icon 
(and other settings in the SpeedStep window), refer to “Using 
Computer Setup,” later in this section.
Using the SpeedStep Window
To open the SpeedStep window from the desktop, select
Start > Settings > Control Panel > Power Management icon > 
Intel SpeedStep technology tab. Then set your preferences as 
instructed in the following table.
Preference Procedures
Assign a performance mode that 
applies when the notebook is 
running on battery power.
Select a performance mode 
from the drop-down list for 
Running on Batteries, then 
select OK.
Assign a performance mode that 
applies when the notebook is 
running on AC power.
Select a performance mode 
from the drop-down list for 
Plugged In, then select OK.
Set the notebook to remain in the 
same performance mode even if 
the power source changes.
Select the same performance 
mode from the drop-down lists 
for Running on Batteries and 
Plugged In, then select OK.
Remove the SpeedStep icon from 
the taskbar.
1. Select the check box for 
Remove Icon from Taskbar.
2. Select OK in the Advanced 
window.
3. Select OK or Apply in the 
main SpeedStep window.