Compaq 285558-001 Using SpeedStep Windows 2000 Professional Only, Choosing a Performance Mode

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Power

Using SpeedStep

(Windows 2000 Professional Only)

In Windows 2000 Professional, the Intel Pentium 4 Processor with SpeedStep technology enables you to set the processor speed for optimal performance or optimal power conservation. The SpeedStep technology can also enable an automatic change in CPU (central processing unit) speed when the power source changes between AC power and battery power or when notebook use changes between active and idle.

These changes in CPU speed function independently from the power management settings available through the operating system. For information about using Windows power management features, see “Setting Power Management Preferences” earlier in this chapter.

✎In Windows XP Home and Windows XP Professional, the functions of SpeedStep technology are managed through the operating system.

Choosing a Performance Mode

The SpeedStep technology offers 4 preset performance modes:

■In Maximum Performance mode, the processor runs at full speed to provide maximum performance.

■In Automatic mode, the processor speed increases while the notebook is being used and decreases when the notebook is not being used.

■In Battery Optimized mode, the processor runs at a reduced speed to provide an optimal balance between energy conservation and performance.

■In Maximum Battery mode, the processor runs at a greatly reduced speed to provide maximum energy conservation.

The notebook can run in any of the performance modes while it is operating on AC power or on battery power.

Software Guide

2–13

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Contents Software Guide Page Contents Power SecuritySoftware Updates and Restorations MultiBoot Advanced Users OnlyIntelligent Manageability Setup and Diagnostic Utilities IndexUsing CDs and DVDs Displaying Media ContentsCD and DVD Software Avoiding Standby and HibernationSetting Autorun Preferences Cancelling Autorun on an Audio CDDisplaying the Contents of a Medium Copyright WarningPlaying CDs with Windows Media Player Playing an Audio CDPlaying a Video CD Using Notebook Media Keys Accessing Windows Media Player Help Installing WinDVD Playing DVDs with WinDVDAccessing WinDVD Help Windows 2000 Professional, on the command line, typeUsing DVD Region Settings Starting a DVDSoftware Guide Understanding Easy CD Creator Features Using Optional or Windows SoftwareCreating and Copying CDs and DVDs Installing Easy CD Creator Installing Easy CD Creator SoftwareEnabling Auto Insert Notification Preparing to Use Easy CD Creator Selecting Drive LocationsSelecting and Preparing Easy CD Creator Media Choosing Recording MediaResponding to the UDF Prompt Formatting Recording MediaSelecting Easy CD Creator Settings Application Required SettingsDisabling Disk-at-Once Enabling Auto Insert NotificationEnabling Track-at-Once Accessing Easy CD Creator Help Easy CD Creator Tips and Troubleshooting Using CD CopierPlaying CDs and DVDs Creating Media for Use in Other SystemsUsing Windows Media Player Responding to Buffer Underrun ErrorsPower Selecting a Power SourceUnderstanding Standby and Hibernation StandbyHibernation Enabling HibernationWhen the Power Supply Is Uncertain When You Leave Your WorkChoosing Standby, Hibernation or Shutdown While Using Drive Media While Using InfraredStandby, Hibernation and Shutdown Procedures Identifying the Power Controls and LightUsing the Default Power Procedures Turning the Notebook On or OffInitiating or Exiting Standby Button Light turns on Your work Returns to ScreenInitiating or Exiting Hibernation Setting Power Procedure Preferences Accessing Power Procedure SettingsUsing Fn+F3 as the Windows Sleep Button Using a Standby PasswordUsing Emergency Shutdown Procedures Accessing the Power Options Window Setting Power Management PreferencesDisplaying the Power Meter Icon Setting a Power Scheme Setting or Changing a Power SchemeChanging a Power Scheme Using SpeedStep Windows 2000 Professional Only Choosing a Performance ModeSetting SpeedStep Preferences Using the SpeedStep WindowUsing the SpeedStep Icon Using Computer SetupFinding More Battery Power Information Security Features Quick Reference SecurityUsing Passwords Setting Preferences in Computer SetupForgetting Passwords Combining Compaq and Windows Passwords Using a Power-On Password Entering Power-On Password SettingsUsing a Compaq Administrator Password Entering a Power-On PasswordEntering Compaq Administrator Password Settings Using DriveLock Entering a Compaq Administrator PasswordProtecting a Hard Drive with DriveLock Accessing a Protected Hard Drive Changing a DriveLock Password Removing DriveLock Protection Disabling a Device Selecting an Information Management Procedure Protecting System InformationEntering and Displaying System Information Connecting an Optional Cable Lock Intelligent Manageability Understanding Intelligent ManageabilityInstalling Intelligent Manageability Setting Up Insight Management AgentsUsing Fault Management Alerts Identifying a Fault Management AlertSetting Fault Management Alert Preferences MultiBoot Advanced Users Only Changing the Startup Sequence with MultiBootEnabling Media and Devices for MultiBoot NICUsing the Default Search Sequence Planning Changes to the Startup Sequence Specifying MultiBoot Preferences Setting a Continuing Startup SequenceSetting the MultiBoot Express Prompt Responding to the MultiBoot Express PromptSoftware Updates Restorations Updating SoftwarePreparing for a Software Update Accessing Notebook Model InformationAccessing ROM Version Information Displaying ROM Information in Compaq DiagnosticsDisplaying ROM Information in Computer Setup Accessing Software Updates Downloading and Installing a System ROM Update Updating Software from the InternetSoftware Updates and Restorations Downloading and Installing a KBC ROM Update Downloading a KBC ROM UpdateInstalling a KBC ROM Update Downloading and Installing a Non-ROM SoftPaq Restoring Software Installing a Retail Version of an Operating System Setup and Diagnostic Utilities Selecting Computer Setup or Compaq DiagnosticsUsing Computer Setup Computer Setup ProceduresRestoring Computer Setup Defaults Selecting from the File Menu Select To Do ThisSelecting from the Security Menu Selecting from the Tools Menu Selecting from the Advanced MenuSelecting from the Advanced Menu Using Compaq Diagnostics Detecting Compaq DiagnosticsInstalling Compaq Diagnostics Using the Compaq Configuration Record Scan Using the Diagnostics ScanObtaining Configuration Information Obtaining Diagnostic Test InformationSetup and Diagnostic Utilities Index Compaq Support Software CDCompaq Support Software CD 6-4Compaq telephone numbers DVD Index-4 Index-5 Restoring software 6-10 ROM. See system ROM Read Index-7 Worldwide Telephone Numbers