Power sources, Task Recommended power source | HP 397381-001

Power sources

The computer can run on internal or external AC power. The following table indicates the best power sources for common tasks.

Task	Recommended power source

Work in most software	● Charged battery pack in the computer
applications	● External power supplied through one of the
	● External power supplied through one of the
		following devices:
		●	AC adapter
		● Optional expansion product (select
			models only)
		●	Optional power adapter

Charge or calibrate a battery	External power supplied through
pack in the computer	●	AC adapter
	●	AC adapter
	● Optional expansion product (select models only)
	●	Optional power adapter

			WARNING! Do not charge the computer
			WARNING! Do not charge the computer

battery pack on board aircraft. Charging the battery pack may damage aircraft electronic systems.

Install or modify system software External power supplied through or write to a CD or DVD

●AC adapter

●Optional expansion product (select models only)

●Optional power adapter

ENWW	Power sources 31

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HP 397381-001 manual Power sources, Task Recommended power source

Contents

Page Page Table of contents Power Multimedia Drives Memory Modules External Media CardsExternal Devices Security Wireless Select Models OnlyModem and Local Area Network Software Updates and Recovery Setup UtilityTroubleshooting Routine Care 175 Electrostatic discharge Enww Select Hardware tab Device Manager Components Keys Top components TouchPad Buttons and switches Standby, resumes from standby into Windows Lights Rear components Front components Right-side components Left-side components Bottom components Display components Wireless antennae select models only Additional hardware components Labels Operating environment SpecificationsRated input power Feature Support Expansion port input/output signals TouchPad TouchPad and Keyboard Setting TouchPad preferences Using the TouchPadUsing an external mouse Hotkeys Keyboard Display and clear system information fn+esc Hotkey proceduresHotkey quick reference Open a Web browser fn+f3 Open the Help and Support Center fn+f1Open the Print Options window fn+f2 Initiate standby fn+f5 Switch the screen image fn+f4 Decrease screen brightness fn+f7 Initiate QuickLock fn+f6Increase screen brightness fn+f8 Play, pause or resume an audio CD or a DVD fn+f9 Setting tiling preferences Accessing the Quick Launch Buttons control panelSetting advanced preferences Quick Launch Buttons software Displaying the Quick Launch Buttons icon Setting button assignments on an external keyboard Enabling and disabling the embedded numeric keypad Using the embedded numeric keypadKeypads Enabling or disabling num lock mode as you work Using an external numeric keypadSwitching key functions on the embedded numeric keypad Enww Power control and light locations Power Power Task Recommended power source Power sources Connecting the AC adapter Hibernation Standby and hibernationStandby Initiating standby, hibernation or shutdown When you leave your workWhen a reliable power supply is unavailable Enww Turning the computer or display on or off Default power settingsUsing emergency shutdown procedures Stand by Initiating or resuming from standby Hibernate Initiating or restoring from hibernation Displaying the Power Meter icon Power optionsAccessing Power Options Properties Setting a security prompt Setting or changing a power scheme Processor performance controls Inserting or removing a battery pack Battery packs Charging a battery pack Interpreting charge indicators Monitoring the charge of the battery packObtaining accurate charge information Displaying charge information on the screen Identifying low-battery conditions Managing low-battery conditionsLow-battery condition Critical low-battery condition When external power is available Resolving low-battery conditionsWhen a charged battery pack is available When no power source is available When to calibrate Calibrating a battery packHow to calibrate Charging the battery pack Discharging the battery pack Recharging the battery pack Conserving battery powerConserving power as you work Selecting power conservation settings Storing a battery packDisposing of a used battery pack Drive care Drives IDE drive light Hard drive Enww Enww DVD-ROM ±RW/R Optical drives Inserting an optical disc Removing an optical disc with power Removing an optical disc without power Avoiding standby or hibernation Identifying the installed optical drive Using the optical driveMultimedia Multimedia Hardware Inserting an optical disc Removing an optical disc with power Removing an optical disc without power Using media activity hotkeys Using the QuickPlay buttons Enww Using the audio features Using S/PDIF digital audio select models only Using the audio-in microphone jackUsing the audio-out headphone jack Adjusting the volume Using the external monitor port Using the video features Using the S-Video-out jack Remote Control Select Models Only Inserting the battery PC Card version HP Mobile Remote Control PC Card version Enww Enww Storing the remote control in the PC Card slot Button quick reference PC Card version Play/Pause HP Mobile Remote Control PC Card version component functions Inserting the battery ExpressCard version HP Mobile Remote Control ExpressCard version Enww Replace the battery compartment cover Storing the remote control in the ExpressCard slot Button quick reference ExpressCard version Press to stop the current media activity, such as Press to go back to the previous track or chapter Problem Possible solution Troubleshooting the remote control Multimedia software Identifying preinstalled multimedia softwareInstalling multimedia software from a CD select models only Using QuickPlay software Using multimedia software Protecting the CD or DVD write process Protecting playback Observing the copyright warning Changing DVD region settings Digital Media Slot cards select models only External Media Cards Inserting a digital card Stopping or removing a digital card PC Cards select models only Configuring a PC Card Stopping or removing a PC Card Inserting a PC Card Enww Selecting an ExpressCard Configuring an ExpressCardExpressCards Inserting an ExpressCard Enww Stopping or removing an ExpressCard External Devices Using a USB deviceConnecting a USB device Required USB software Stopping a USB device Connecting a 1394 device Using a 1394 device select models onlyStopping a 1394 device Required 1394 software Using the expansion port Adding or replacing memory modules Memory Modules Enww Enww Enww Effects of increasing memory Video memory settings select models only Identifying an 802.11 wireless device Wireless Select Models OnlyWireless features Wireless Control Description Wireless controls Wireless devices select models only Setting up a Wlan in your home Using wireless security features Connecting to a Wlan in your homeConnecting to a public Wlan Bluetooth wireless devices select models only Wireless device status states Turning on the devices Turning off and disabling the devices Enww Modem Modem and Local Area Network Connecting the modem cable Viewing the current country selection Connecting a country-specific modem cable adapterSelecting a location setting Select Start Control Panel Network and Internet Connections Adding new locations when traveling Check the telephone line type Solving travel connection problems Clear the check box for Wait for dial tone before dialing Using preinstalled communication software Local area networks Enww Security Security features Guidelines for setting passwords Passwords QuickLock Passwords set in Windows Administrator password Passwords set in the Setup Utility Entering an administrator password Power-on passwordManaging an administrator password Entering a power-on password Managing a power-on password DriveLock password Setting a DriveLock password Changing a DriveLock password Entering a DriveLock password Removing DriveLock protection Device security Firewall software Critical updatesAntivirus software Optional security cable Setup Utility access Setup Utility Setup Utility language Setup Utility defaults Security menu Setup Utility menusMain menu Tools menu Advanced menu Enww HP Software Update Software Updates and RecoverySoftware updates Accessing computer information Software updates and the HP Web site Downloading a Bios update Installing a Bios update Downloading and installing other software Safeguarding your information System recoveryUsing System Restore Creating a restore point Restoring to a restore point Reinstalling applicationsReinstalling applications from the hard drive Reinstalling applications from discs Repairing the operating system Back up your system Reinstalling the operating system Reinstall the operating system Update reinstalled software Reinstalling device drivers and other software Enww Routine Care Hardware maintenance Battery pack Display TouchPad and keyboard Drives Using Disk DefragmenterUsing Disk Cleanup Regular tune-ups Traveling and shipping Computer will not start up TroubleshootingQuick checklist Software is functioning abnormally Computer screen is blank An external device is not working Computer is turned on, but is not respondingComputer is extremely warm Enww Customer Care Taking the computer to a service partnerPreparing to contact Customer Care Contacting Customer Care by e-mail or telephone Enww Preventing electrostatic discharge Electrostatic dischargeHandling drives Handling internal components Grounding methods Index Symbols/Numerics Enww Wlan USB Wlan label Writable media XD-Picture Card XD Enww