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

Models: 2521EU 2530AI 2104EA 2102FD 2111EU 2508EU 2505EU 2164EA 2565EA 2561AH 2539AI 2523EU 2526AH 2538AI 2156AE 2126EU 2100 (Intel) 2120EU 2123EA 2116EU 2118EU 2509AT 2511EU 2168EA 2161AD 2175US 2181AF

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Managing Power Consumption

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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HP 2161EA, 2186AF, 2182US, 2182AT, 2182AF, 2181AF Managing Power Consumption, How the notebook manages power automatically

Contents

Compaq Notebook Series Reference Guide Compaq Notebook Series Reference Guide First Edition December Reference Number 2100/2500/N1050v Part Numberline cord that meets the requirements of ACA Technical Standard TS008 Important Safety Informationnotebook must be connected to the Telecommunication Network through a Software Product License Agreement iv Reference GuideOWNERSHIP. Customer agrees that he/she does not have any title or ownership of the software, other than ownership of the physical media. Customer acknowledges and agrees that the software is copyrighted and protected under the copyright laws vi Reference Guide Basic Operation ContentsGetting Started with Your Notebook Modem and Network Connections Batteries and Power ManagementTroubleshooting and Maintenance Add-On DevicesReference Information IndexGetting Started with Your Notebook Reference GuideIdentifying Parts of the Notebook Identifying Parts of the NotebookSeries 2100 and N1050v Reference Guide Getting Started with Your NotebookIdentifying Parts of the Notebook 13 AC adapter jack 14 Universal serial bus ports USBBattery latch 4 Reference GuideReset button Getting Started with Your NotebookIdentifying Parts of the Notebook SeriesGetting Started with Your Notebook Reference GuideIdentifying Parts of the Notebook 6 Reference GuideGetting Started with Your Notebook Getting Started with Your Notebook 26 Hard disk drive 27 Battery latch31 Reset button Identifying Parts of the NotebookStatus Lights 1 Power mode3 Battery status 2 Hard disk drive activityIdentifying Parts of the Notebook 1 Caps Lock On Caps Lock is activeSetting Up Your Notebook Setting Up Your NotebookStep 1 Insert the battery Step 2 Connect AC power Setting Up Your NotebookStep 3 Connect a phone line Setting Up Your NotebookSetting Up Your Notebook Step 5 Set up WindowsStep 4 Turn on the notebook HintBasic Operation Reference GuideOperating Your Notebook Default power settingsOperating Your Notebook Operating Your Notebook To reset the notebookTo change the boot device To use the TouchPad Operating Your NotebookOperating Your Notebook To use the function hot keysBasic Operation Reference GuideOperating Your Notebook To use the One-Touch buttonsTo program a One-Touch button Operating Your Notebook To use the Windows and Applications keysTo use the ALT GR key To insert or remove a CD or DVD Using CDs or DVDsUsing CDs or DVDs could stop responding and you could lose dataUsing CDs or DVDs To play DVD moviesTo create or copy CDs To lock your notebook To set up password protectionSecuring Your Notebook Securing Your NotebookSecuring Your Notebook To attach a security cableTo protect against viruses hard disk drive When you enable hard disk drive lock, the current BIOS user passwordTo lock the hard disk drive Securing Your NotebookTo maintain your notebook Taking Care of Your NotebookTo protect your hard disk drive Taking Care of Your NotebookTo extend the life of the display To safeguard your dataTo clean your notebook Taking Care of Your NotebookBatteries and Power Management Reference GuideManaging Power Consumption Managing Power ConsumptionHow the notebook manages power automatically information that was not saved will be lostManaging Power Consumption Changing timeout settings and creating power schemesunsaved data if the notebook battery runs down completely To respond to a low-battery warning Using Battery PowerTo check battery status Using Battery PowerUsing Battery Power To recharge the batteryTo get the most from your batteries Using Battery Power Unplug the AC adapter when the notebook is not in useModem and Network Connections Reference Guidetelephone line type prior to connecting your phone line Using the ModemUsing the Modem Using the Modem To change your modem settingsSpecial restrictions in certain countries Connecting to a Local Area Network LAN Connecting to a Local Area Network LANConnecting to an Existing Wireless Network Making Wireless Network Connections select models onlyMaking Wireless Network Connections select models only To prepare for connectionsCreating a New Notebook-to-Notebook Network Ad Hoc Making Wireless Network Connections select models onlythe individual wireless functions To turn wireless communication on and offpurchase a license before using the wireless function Turning on communication and making a connectionTurning off communication and ending a connection Making Wireless Network Connections select models onlyMaking Wireless Bluetooth Connections select models only Making Wireless Bluetooth Connections select models onlyTo turn Bluetooth communication on and off authorization before turning on your notebook wireless networkingMaking Wireless Bluetooth Connections select models only To prepare for Bluetooth connectionsTurning off Bluetooth communication Sending Outlook data to another Bluetooth device OPP To send or receive files using BluetoothSharing files with another Bluetooth device FTP Making Wireless Bluetooth Connections select models onlyAdd-On Devices Reference GuideConnecting External Devices Connecting External DevicesConnecting PC Cards To insert or remove a PC CardRemoving a PC Card Connecting External Devicesof these jacks may damage the notebook To connect an audio deviceaudio recorder replicatorAdjusting monitor resolution and other settings Connecting an external monitorSwitching the display to the external monitor To use an external monitorConnecting External Devices Using dual display modeTo connect an IEEE 1394 device select models only Note select models only Using the infrared portTo connect an infrared device select models only Printing to an infrared printerTo use a port replicator select models only Connecting External DevicesTo dock to the port replicator Connecting External DevicesConnecting External Devices To undock from the port replicator56 Reference Guide Add-On DevicesInstalling Additional RAM Memory Installing Additional RAM MemoryTo install a RAM expansion module back of the notebookInstalling Additional RAM Memory 5. Replace the cover 6. Insert the batteryInstalling Additional RAM Memory To remove a RAM expansion moduleof the notebook 5. Pull the board out of the connector 6. Replace the cover 60 Reference GuideInstalling Additional RAM Memory 7. Insert the batteryReplacing the Hard Disk Drive Replacing the Hard Disk DriveTo replace the hard disk drive To replace the hard disk drive holder Replacing the Hard Disk DriveTo prepare a new hard disk drive Replacing the Hard Disk DriveTroubleshooting and Maintenance Reference GuideTroubleshooting Your Notebook Troubleshooting Your NotebookAudio problems If no sound is audibleIf 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 you hear a loud high-pitched whine feedback from the speakersIf a DVD doesn’t play with two displays Display problemsIf a DVD movie doesn’t fill the screen If the notebook can’t find Wordpad.exe after inserting a CDIf 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 browse the Network Neighborhood or My Network Places Local area network LAN problemsIf the built-in network adapter doesn’t connect to the LAN If you can’t log in to Netware serversIf a message says you are out of memory Memory problemsModem problems If memory doesn’t increase after adding RAMIf 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 faxIf the notebook doesn’t recognize a PC Card PC Card PCMCIA problemsPerformance problems If a network PC card stops communicating properlyIf 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 Troubleshooting Your NotebookIf the notebook doesn’t enter Hibernation as expected Printing problemsIf the notebook doesn’t enter Standby mode as expected If a serial or parallel printer doesn’t printIf 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 workingIf the notebook won’t boot from battery power Startup problemsIf the notebook doesn’t respond when you turn it on If the notebook won’t boot from the floppy disk driveIf the notebook takes a long time to resume after being suspended Wireless problemsIf you have problems with wireless 802.11 communication Troubleshooting Your NotebookIf you cannot connect to a particular notebook on the network If your notebook cannot detect any Bluetooth devicesIf your notebook cannot detect a certain Bluetooth device If you can connect, but the network is slowConfiguring the Notebook Configuring the NotebookTo run the BIOS Setup utility Troubleshooting and Maintenance Main MenuSystem Devices Menu Configuring the NotebookExit Menu Boot MenuSecurity Menu 86 Reference GuideTo change video memory settings using BIOS Setup utility Configuring the NotebookReinstalling and Updating Software Reinstalling and Updating SoftwareTo replace a damaged QuickRestore System Recovery CD Reference Information Reference GuideModem Reference Conexant Conexant AT Commands Advanced Users OnlyModem Reference Information Modem Reference InformationReference Information Conexant AT Commands Advanced Users OnlyCommand Modem Reference InformationCommand 92 Reference GuideConexant AT Commands Advanced Users Only Reference InformationReference Information Conexant AT Commands Advanced Users OnlyCommand Modem Reference Information94 Reference Guide ECC CommandsFAX Class Conexant AT Commands Advanced Users OnlyCommand Voice CommandsConexant AT Commands Advanced Users Only AT* Commands96 Reference Guide Modem Reference Information S-Registers ConexantSelected Result Codes Conexant DefaultSafety Information Safety InformationPower Cords Safety Information Battery SafetyLaser Safety Safety Information LED SafetyMercury Safety Exposure to Radio Frequency Radiation Safety InformationRegulatory Information Regulatory InformationU.S.A Connections to Peripheral DevicesApplicable certification jack USOC = RJ11C. A plug and jack used to connect this equipment to the premises wiring and telephone network must comply with the applicable FCC Part 68 rules and requirements adopted by the ACTA. A compliant telephone cord and modular plug is provided with this product. It is designed to be connected to a compatible modular jack that is also compliant. See installation instructions for details Regulatory InformationRegulatory Information CanadaDeclaration of Conformity U.S.A European Union Regulatory InformationRegulatory Information Italy Indoor or outdoor use in a public area requires a user licenseRegulatory Information JapanJapan Telecommunications Approval Reference Information New ZealandPTC200 2.11.1 6 & 7 Compliance Testing Functional tests Regulatory InformationRegulatory Information RussiaInternational Regulatory Information SafetyReference Information Reference GuideIndex Reference GuideQuickRestore System Recovery Reference Guide112 Reference Guide