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Intel SpeedStep Options: Dell Latitude L400 User's Guide
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Intel® SpeedStep™ Options: Dell™ Latitude™ L400 User's Guide
The Intel SpeedStep technology included with your system allows
you to set the performance level of the processor whether the computer is running on
battery or AC power. You can only use
the Intel SpeedStep technology when Microsoft® Windows® operating system is running. You cannot control the
processor's speed when running in MS-DOS® mode. You can verify the processor's maximum
speed by checking the processor information in the system setup program.
To access the Intel SpeedStep properties window, perform the following steps:
- Right-click the flag icon in the system tray on the Windows taskbar to access
further performance level options. The following three options appear:
- Maximum Performance option — switches your
computer to the highest possible performance level even if the computer is running on
battery
- Battery Optimized Performance option — lets
your computer run on performance level optimized for battery power even if the computer is
connected to an electrical outlet
- Adjust Properties — lets you change
additional performance options
- To change the performance level, click the desired option.
To access the Intel SpeedStep
options when the flag icon is not visible on the taskbar and your computer is
running under ACPI (Microsoft Windows 98, Windows 2000, or Windows Me), perform
the following steps:
- Click the Start button and point to Settings.
- Click Control Panel.
- Click Power Management.
- Select the Intel SpeedStep tab and select the
options desired.
- After you make any changes, click OK to accept the
settings and close the Intel SpeedStep window.
- To access the Intel SpeedStep option window, either right-click the
flag icon and click the Adjust Properties option or double-click the flag
icon.
The Intel SpeedStep technology options window opens.
- You can adjust the following performance options:
- Automatically change performance when the power source
changes (the default) — changes the performance level of your computer
automatically when it is running on battery or connected to an electrical outlet.
- Ask me before automatically changing performance
— when selected, the computer prompts you for confirmation before the computer
changes performance level.
- Running on batteries and Plugged in
pull-down menus — change performance level options.
- Click Apply to accept the settings.
- Click OK to close the Intel SpeedStep
technology options window.
The Advanced options lets you disable various
options. To set Advanced options, perform the following steps:
- Click the flag icon in the Windows system tray on the taskbar.
- Click the Adjust Properties option.
The Intel SpeedStep window opens.
- Click the Advanced button.
The Advanced window opens.
- Click any of the following options:
- Disable Intel SpeedStep technology control.
If you disable Intel SpeedStep through the Advanced
options, you will be able to change processor speed only through the system
setup program.
- Remove flag icon.
- Disable audio notification when performance changes.
- Click Apply to accept the settings.
- Click OK to close the Intel SpeedStep
technology window.
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