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HP 375424-001 manual Processor Performance Controls Select Models Only

Models: 375424-001

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Power

Processor Performance Controls (Select Models Only)

On select notebook models, Windows XP supports software that enables you to control processor performance. The central processing unit (CPU) speed can be set for optimal performance or for optimal power conservation.

For example, the software can be set to trigger an automatic change in processor speed when the power source changes from external power to battery pack power, or when the notebook use changes between active and idle.

Processor performance controls are managed in the Power Options window.

To access Windows XP processor performance controls:

»Select Start > Control Panel > Performance and Maintenance > Power Options > Power Schemes tab.

The power scheme you select determines how the processor performs when the notebook is connected to external power or running on battery power. Each power scheme for external power or battery power sets a specific processor state.

Hardware and Software Guide

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HP 375424-001 manual Processor Performance Controls Select Models Only

Contents

Hardware and Software Guide Page Contents Power Keyboard and TouchPadMultimedia DrivesMemory Modules PC Cards and ExpressCardsDigital Memory Cards Select Models Only USB DevicesWireless Select Models Only SecuritySetup Utility Software Updates and RecoveriesSpecifications Travel and ShippingIndex Component ID Top Components KeysComponentDescription TouchPad Component DescriptionPower Controls Buttons Depending on your notebook model, button locations may varyWireless Select Lights Depending on your notebook model, light locations may varyWireless Antennae Select Models Only Front Components Speakers, Display Release Button and Consumer IR LensLights Left-Side Components Ports and JacksExpansion port 2 describes Media and Memory Card Slots Right-Side Components Component ID Bottom Components Mini PCI and Memory Module CompartmentBays, Battery Latch and Vents Additional Hardware Components Additional Components Optical DiscsLabels Component ID Power Power Sources Task Recommended Power SourceStandby and Hibernation StandbyHibernation When You Leave Your Work When the Power Supply Is UncertainInitiating Standby, Hibernation or Shutdown When Using Infrared Communication or Drive Media Turning the Notebook On or Off Default Power SettingsTask Procedure Results Select Start Turn OffTask Procedure Result Initiating or Resuming from StandbySelect Start Turn Off Computer Stand By Initiating or Restoring from Hibernation Select Start Shut DownPower Options Emergency Shutdown ProceduresUsing Power Schemes Setting a Standby Password Setting Other Power PreferencesSelect the Enable hibernation check box Select OK Processor Performance Controls Select Models Only Power Battery Pack Charging a Battery PackMonitoring the Charge in a Battery Pack Obtaining Accurate Charge ReportsDisplaying Charge Reports Low-Battery Conditions Identifying Low-Battery ConditionsResolving Low-Battery Conditions Calibrating a Battery Pack When to CalibrateHow to Calibrate Charging the Battery PackDischarging the Battery Pack Clear the Enable hibernation check box Conserving Battery Pack Power Recharging the Battery PackConserving Power as You Work Selecting Power Conservation SettingsReplacing a Battery Pack Removing a Battery PackInserting a Battery Pack Storing a Battery Pack Temperature Range F Range C Safe Storage TimeDisposing of a Used Battery Pack Keyboard and TouchPad TouchPad TouchPad ComponentsUsing the TouchPad Setting TouchPad Preferences Hotkeys Identifying HotkeysHotkey Quick Reference Using Hotkeys on the Internal Keyboard Hotkey ProceduresUsing Hotkey Commands Using Hotkeys on an External KeyboardSwitch Image fn+f4 Open Print Window fn+f2Open Web Browser fn+f3 Initiate Standby fn+f5 Initiate QuickLock fn+f6 Decrease Brightness fn+f7 Increase Brightness fn+f8Media Activity Hotkeys fn+f9 through fn+f12 Play, Pause or Resume an Audio CD or a DVD fn+f9 Stop an Audio CD or a DVD fn+f10Play Next Track or Chapter of an Audio CD or a DVD fn+f12 Navigate Back fn+backspace Select an Item on the Screen fn+enterDisplay System Information fn+esc Quick Launch Buttons Select Models Only Using an Embedded Numeric Keypad KeypadsSwitching the Functions of Keypad Keys Using an External Numeric KeypadTurning Num Lock Mode On and Off As You Work Audio Features Adjusting the VolumeMultimedia Using the Audio-In Microphone Jack Using the Audio-Out Headphone JackConnecting the Audio-Out Headphone Jack Video Features Connecting an S-Video DeviceConnecting the Audio Connecting the Video Multimedia Software Displaying a Video ImageObserving the Copyright Warning Installing Software Enabling AutoPlayChanging DVD Region Settings Using the Operating SystemUsing WinDVD Using Other DVD SoftwareDrives Refer to the Regulatory and Safety Notices guide Drive CareRemoving the Primary Hard Drive Drives Reinstalling the Primary Hard Drive Drives Removing an Optical Disc Without Power Displaying Optical Disc Contents Avoiding Standby or HibernationWhat Is a PC Card? PC Cards and ExpressCardsInserting a PC Card PC Cards and ExpressCards Removing a PC Card What Is an ExpressCard? ComponentConfiguring an ExpressCard Inserting an ExpressCardPC Cards and ExpressCards Removing an ExpressCard Using Digital Media Digital Memory Cards Select Models OnlyInserting Digital Cards Removing Digital Cards Disabling or Restarting Digital Cards What Is a Memory Module? Memory ModulesReplacing a Memory Module Memory Modules Memory Modules Memory Modules Hibernation File What Is USB? USB DevicesUsing USB Devices Operating System and SoftwareModem and Networking Internal ModemConnecting a Modem Cable Using a Country-Specific Modem Cable Adapter Adding New Locations When Traveling Modem Region SelectionViewing the Current Regional Selection Solving Travel Connection Problems Check the telephone line typeClear the Wait for Dial Tone Before Dialing check box Preinstalled Communication Software Network Cable10-8 Wireless Select Models Only Wireless Select Models Only Wireless Local Area Network Select Models Only 11-4 Setting Up a Wlan in Your Home Using a Wlan Connection Start Help and SupportUsing Wireless Security Features Installing Wireless Software OptionalAccessing Wlan Software and Documentation Identifying a Wlan DeviceTroubleshooting Devices Select the Download Drivers and Software radio buttonBluetooth Select Models Only Hardware and Software Guide 11-11 Device Power States Hardware and Software Guide 11-13 Wireless Assistant icon Turning On the DevicesThen Wireless Assistant Turning Off and Disabling the DevicesSecurity Features SecuritySecurity Preferences Setup Utility To Protect Against Use This Security FeaturePasswords QuickLockHP and Windows Passwords HP Passwords FunctionWindows Passwords Function HP and Windows Password Guidelines HP Administrator Password Setting HP Administrator Passwords Power-On Passwords Entering HP Administrator PasswordsSetting Power-On Passwords Entering Power-On Passwords Device Security Antivirus Software Critical Security Updates for Windows XP Firewall Software Optional Security Cable Hardware and Software Guide 12-15 Setup Utility Opening the Setup Utility Changing the Language of the Setup UtilityNavigating and Selecting in the Setup Utility Displaying System InformationRestoring Default Settings in the Setup Utility Using Advanced Setup Utility FeaturesClosing the Setup Utility Software Updates Recoveries Software UpdatesPreparing for a Software Update Accessing Notebook Product InformationAccessing Notebook ROM Information Downloading and Installing an Update Downloading and Installing a ROM UpdateDownloading a ROM Update Downloading and Installing a Non-ROM SoftPaq Installing a ROM UpdateStart All Programs Accessories Windows Explorer System Restore Points Setting a Restore PointRepairing or Reinstalling Applications Restoring to a Restore PointReinstalling Applications from Your Hard Drive Reinstalling Applications from DiscsRepairing the Operating System Reinstalling the Operating System Reinstalling Device Drivers and Other Software Updating Reinstalled Software Installing a Retail Version of an Operating SystemHardware and Software Guide 15-1 Temperature Keyboard Display Travel and Shipping Preparation for Travel and ShippingTips for Traveling with Your Notebook Travel and Shipping Operating Environment SpecificationsTemperature Relative humidity noncondensingRated Input Power Expansion Port Input/Output Signals Select Models Only Feature Support Index See also cables Index-3 Index-4 See also buttons display switch Index-6 Num lock key Power connector 1-11 power cord 1-18,2-1 See also cables Pdif audio 17-4scroll lock key Index-10 VCR