HP 2161EA, 2186AF, 2182US Managing Power Consumption, How the notebook manages power automatically

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Batteries and Power Management

Managing Power Consumption

Managing Power Consumption

When you’re running your notebook on battery power, you can maximize operating time without compromising performance. Your notebook is designed to help you reduce power consumption and extend battery life.

During idle periods, the notebook automatically enters power-saving modes after specified timeout periods. You can adjust these timeouts to suit your working habits.

How the notebook manages power automatically

Your notebook automatically enters Hibernation and Standby, and turns off the hard disk and display based on values set in Windows.

When this occurs	The result is	To resume

No keyboard, pointing device, or other	Display turns off.	Press any key or move a
input activity occurs for the specified	Turns off the display to	pointing device to turn on
interval.	conserve battery power and	the display.
	extend the life of the display.

The hard disk is not accessed for a	Hard disk turns off.	Begin using the notebook,
specified interval.	This is usually set to occur	and the hard disk turns on.
	shortly after the display is
	turned off.

No pointing devices are used, no disk	Standby is initiated.	Briefly press the power
drive is accessed, and no port (serial,	Maintains your current session	button to return to your
parallel, or infrared) is active for the	in RAM, and turns off the	current session.
specified interval.	display and other components
	to conserve battery power.

The notebook stays in Standby for the	Hibernation is initiated.	Briefly press the power
specified interval.	Saves your current session to	button to return to your
	the hard disk, and turns off the	previous session.
	notebook.

CAUTION	Make a habit of saving your work before allowing your notebook to enter
	Standby. If power is interrupted while the notebook is in Standby, any
	information that was not saved will be lost.

30 Reference Guide

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Contents Compaq Notebook Series Reference Guide Ii Reference Guide Important Safety Information Software Product License Agreement Iv Reference GuideReference Guide Vi Reference Guide Contents Batteries and Power Management Index Getting Started with Your Notebook Identifying Parts of the Notebook Series 2100 and N1050vIdentifying Parts of the Notebook Mini-PCI cover no user parts inside Series Identifying Parts of the Notebook Identifying Parts of the Notebook Status Lights Power modeBattery status Hard disk drive activityIdentifying Parts of the Notebook Setting Up Your Notebook Insert the batteryConnect AC power Connect a phone line Hint Set up WindowsTurn on the notebook Basic Operation Standby -Power Default power settingsPower mode To enter this mode Function Operating Your NotebookTo reset the notebook To change the boot deviceTo use the TouchPad To use the function hot keys This hot key Does thisTo use the One-Touch buttons To program a One-Touch buttonThis key combination Does this To use the Windows and Applications keysTo use the ALT GR key Using CDs or DVDs Could stop responding and you could lose dataTo play DVD movies To create or copy CDsTo lock your notebook To set up password protectionSecuring Your Notebook WindowsTo attach a security cable To protect against virusesTo lock the hard disk drive Hard disk driveTo maintain your notebook Taking Care of Your NotebookTo protect your hard disk drive To extend the life of the display To safeguard your dataTo clean your notebook Batteries and Power Management Information that was not saved will be lost Managing Power ConsumptionHow the notebook manages power automatically Changing timeout settings and creating power schemes Unsaved data if the notebook battery runs down completelyTo respond to a low-battery warning Using Battery PowerTo check battery status To recharge the battery To get the most from your batteriesUsing Battery Power Modem and Network Connections Using the Modem Telephone line type prior to connecting your phone lineTo change your modem settings Special restrictions in certain countriesConnecting to a Local Area Network LAN To prepare for connections Making Wireless Network Connections select models onlyConnecting to an Existing Wireless Network Creating a New Notebook-to-Notebook Network Ad Hoc Turning on communication and making a connection Purchase a license before using the wireless functionIndividual wireless functions Turning off communication and ending a connection Turning on Bluetooth communication Making Wireless Bluetooth Connections select models onlyTo turn Bluetooth communication on and off FunctionTo prepare for Bluetooth connections Turning off Bluetooth communicationSending Outlook data to another Bluetooth device OPP To send or receive files using BluetoothSharing files with another Bluetooth device FTP Add-On Devices Inserting a PC Card Connecting External DevicesConnecting PC Cards To insert or remove a PC Card Connecting External Devices These jacks may damage the notebook Series 2100 and N1050v External microphone connector pinkAudio recorder ReplicatorAdjusting monitor resolution and other settings Connecting an external monitorSwitching the display to the external monitor To use an external monitorUsing dual display mode To connect an Ieee 1394 device select models onlyPrinting to an infrared printer Using the infrared portTo connect an infrared device select models only Transferring files through an infrared connectionTo use a port replicator select models only To dock to the port replicator To undock from the port replicator Back of the notebook Installing Additional RAM MemoryTo install a RAM expansion module Series 2100 To remove a RAM expansion module Installing Additional RAM Memory Replacing the Hard Disk Drive To replace the hard disk driveTo replace the hard disk drive holder To prepare a new hard disk drive Troubleshooting and Maintenance If no sound is audible Troubleshooting Your NotebookAudio problems If sound does not recordIf you get a Region Code error when playing a DVD movie CD-ROM and DVD problemsIf you can’t boot from a CD or DVD If a DVD plays erraticallyDisplay problems If the notebook hard drive doesn’t spin Hard disk drive problemsIf an external display does not work If the hard disk makes a buzzing or whining noiseIf you have problems with infrared communications Heat problemsInfrared problems If the notebook gets abnormally hotIf the TouchPad doesn’t work Keyboard and pointing device problemsIf the pointer is difficult to control If the TouchPad moves the pointer or cursor while you typeIf you can’t log in to Netware servers Local area network LAN problemsIf the built-in network adapter doesn’t connect to the LAN If a network connection responds slowlyMemory problems Modem problemsIf the modem dials but doesn’t connect If the modem doesn’t dial or no dial tone is detectedIf the modem dials incorrectly If the modem isn’t detectedIf the modem connects, but transferred data is bad If the modem causes an Error messageIf the modem dials but you can’t hear it If the modem doesn’t faxPC Card Pcmcia problems Performance problemsIf the notebook turns off immediately after it turns on Power and battery problemsIf the notebook stops responding If the notebook keeps beepingIf the notebook has a short operating time If the battery doesn’t chargeIf the Time Remaining for the battery is not correct Printing problems If a serial modem doesn’t work properly Serial, parallel, and USB problemsIf a serial mouse doesn’t work If the serial or parallel port is not workingStartup problems Wireless problems If you have problems with wireless 802.11 communicationIf you can connect, but the network is slow If your notebook cannot detect any Bluetooth devicesIf your notebook cannot detect a certain Bluetooth device Configuring the Notebook To run the Bios Setup utilitySetting Description Default Main MenuSecurity Menu To change video memory settings using Bios Setup utility Reinstalling and Updating Software To replace a damaged QuickRestore System Recovery CDReference Information Modem Reference Conexant Command ConexantModem Reference Information G ,h ,i G,h +MCR ECC Commands AT* Commands +FMRRegister Function Conexant Range/units Default Code MeaningCountry or Region Rated Voltage and Current Safety InformationPower Cords Battery Safety Laser SafetyLED Safety Mercury SafetyExposure to Radio Frequency Radiation Regulatory Information Connections to Peripheral DevicesRegulatory Information Responsible Party CanadaDeclaration of Conformity U.S.A Trade nameEuropean Union Regulatory Information Japan Japan Telecommunications ApprovalNew Zealand Conexant AMC20493-KT5 Data Fax Modem PTC 211/02/071Russia International PTC200 7.5.2 3 4 Ringer SensitivityEMC Index QuickRestore System Recovery USB

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