4 BATTERY AND POWER MANAGEMENT PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Alarms
The Notebook can be set to alarm when the battery power level is reduced or when it
reaches a critically low level. The Notebook can also be set to enter a low-power m ode
when the battery reaches a specific power level.
ÄCAUTION: The settings on the Alarms tab are preset for the Notebook to run at
optimum efficiency. Changing any of these settings may cause the Notebook to
function improperly. It is recommended that these settings be left at their default
values.
SpeedStep Technology
SpeedStep Technology features several 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 support, high speed
SpeedStep options can be accessed in three ways:
•Access F10 Setup during startup and select the Advanced screen.
•Click the Start>Settings>Control Panel>Power Options>Intel(R)
SpeedStep(TM) technology tab.
•Double-click the Flag icon on the Windows taskbar to open the Intel(R)
SpeedStep(TM) technology dialog box.
Default Alarm Settings
Setting Low Battery Critical Battery
Alarm power level 10% 0%
Notification Sound No Ac tion
Power Mode No Action Hibernation
Active Enabled Enabled