HP Compaq Notebook User Manual

Hardware Guide

HP Compaq Notebook Series

Document Part Number: 309971-002

October 2003

This guide explains how to identify and use notebook hardware features, including connectors for external devices. It also includes power and environmental specifications, which may be helpful when traveling with the notebook.

Microsoft® and Windows® are U.S. registered trademarks of Microsoft Corporation. Intel® is a registered trademark of Intel Corporation or its subsidiaries in the United States and other countries. SD Logo is a trademark of its proprietor. Bluetooth® is a trademark owned by its proprietor and used by Hewlett-Packard Company under license.

The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Hardware Guide HP Compaq Notebook Series Second Edition October 2003 First Edition April 2003 Reference Number: nc4010 Document Part Number: 309971-002

Contents

1 Hardware Features

Pointing Device Components. . . . . . . . . . . . . . . . . . . . . . 1–1

Top Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2

Left-Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

Right-Side Components . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

Front Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6

Rear Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7

Bottom Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8

Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–10

Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–11

2 Pointing Devices and Keyboard

Using a Pointing Device. . . . . . . . . . . . . . . . . . . . . . . . . . 2–1

Using the Pointing Stick . . . . . . . . . . . . . . . . . . . . . . 2–2

Using the TouchPad. . . . . . . . . . . . . . . . . . . . . . . . . . 2–3

Using an External Mouse . . . . . . . . . . . . . . . . . . . . . 2–3

Setting Pointing Device Preferences . . . . . . . . . . . . . 2–4

Using Hotkeys and Shortcut Keys . . . . . . . . . . . . . . . . . . 2–4

Identifying Fn and Function Keys. . . . . . . . . . . . . . . 2–5

Hotkey and Shortcut Key Quick Reference . . . . . . . 2–5

Hotkey and Shortcut Key Procedures . . . . . . . . . . . . 2–6

Hotkey and Shortcut Key Commands . . . . . . . . . . . . 2–6

Switching the Display (Fn+F4) . . . . . . . . . . . . . . . . . 2–7

Viewing Battery Charge Information (Fn+F8) . . . . . 2–7

Hardware Guide iii

Contents

Decreasing Screen Brightness (Fn+F9). . . . . . . . . . . 2–7

Increasing Screen Brightness (Fn+F10) . . . . . . . . . . 2–8

Using Hotkeys and Shortcut Keys with External

Keyboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

Using Quick Launch Buttons. . . . . . . . . . . . . . . . . . . . . . 2–9

Using Keypads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10

Using the Embedded Numeric Keypad . . . . . . . . . . 2–10

Using an External Keypad. . . . . . . . . . . . . . . . . . . . 2–11

3 Battery Packs

Running the Notebook on Battery Power . . . . . . . . . . . . 3–1

Inserting or Removing the Primary Battery Pack . . . . . . 3–3

Using the Optional Travel Battery Pack . . . . . . . . . . . . . 3–6

Inserting or Removing the Battery Pack . . . . . . . . . . 3–6

Attaching or Detaching the Travel Battery Pack. . . . 3–8

Charging a Battery Pack. . . . . . . . . . . . . . . . . . . . . . . . . 3–11

Monitoring the Charge of a Battery Pack . . . . . . . . . . . 3–13

Obtaining Accurate Charge Information . . . . . . . . . 3–13

Displaying Charge Information on the Screen . . . . 3–14

Displaying Charge Information on a Battery Pack . 3–15

Managing Low-Battery Conditions . . . . . . . . . . . . . . . . 3–16

Identifying Low-Battery Conditions . . . . . . . . . . . . 3–16

Resolving Low-Battery Conditions. . . . . . . . . . . . . 3–17

Calibrating a Battery Pack . . . . . . . . . . . . . . . . . . . . . . . 3–18

When to Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19

How to Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19

Conserving Battery Power . . . . . . . . . . . . . . . . . . . . . . . 3–22

Conserving Power as You Work . . . . . . . . . . . . . . . 3–22

Selecting Power Conservation Settings. . . . . . . . . . 3–23

Storing a Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . 3–24

Disposing of a Used Battery Pack . . . . . . . . . . . . . . . . . 3–25

Finding More Power Information . . . . . . . . . . . . . . . . . 3–25

iv Hardware Guide

4 Hard Drive

Caring for Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1

Hard Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Identifying the Hard Drive Activity Light. . . . . . . . . 4–2

Replacing the Primary Hard Drive. . . . . . . . . . . . . . . . . . 4–3

5 Audio and Video

Using Audio Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1

Using the Audio Line-Out Jack. . . . . . . . . . . . . . . . . 5–2

Using the Microphone Input Jack . . . . . . . . . . . . . . . 5–2

Adjusting the Volume . . . . . . . . . . . . . . . . . . . . . . . . 5–3

Using Video Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3

Using the S-Video-Out Jack . . . . . . . . . . . . . . . . . . . 5–4

Changing the Video Mode. . . . . . . . . . . . . . . . . . . . . 5–5

6 Communication Devices

Connecting a Modem Cable. . . . . . . . . . . . . . . . . . . . . . . 6–1

Connecting the RJ-11 Modem Cable. . . . . . . . . . . . . 6–3

Using a Country-Specific Adapter Cable . . . . . . . . . 6–4

Connecting a Network Cable . . . . . . . . . . . . . . . . . . . . . . 6–5

Linking to an Infrared Device . . . . . . . . . . . . . . . . . . . . . 6–7

Setting Up an Infrared Transmission. . . . . . . . . . . . . 6–8

Avoiding Standby with Infrared . . . . . . . . . . . . . . . . 6–8

Using Wireless LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–9

Using Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–9

Contents

7 External Devices

Connecting a Monitor or Projector . . . . . . . . . . . . . . . . . 7–2

Using a USB Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–2

Enabling USB Legacy Support . . . . . . . . . . . . . . . . . 7–3

Connecting an Optional External MultiBay. . . . . . . . . . . 7–4

Connecting an Optional Cable Lock . . . . . . . . . . . . . . . . 7–5

Hardware Guide v

Contents

8 Hardware Upgrades

Using Optional PC Cards. . . . . . . . . . . . . . . . . . . . . . . . . 8–1

Inserting a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . 8–2

Removing a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . 8–3

Using Optional SD Cards. . . . . . . . . . . . . . . . . . . . . . . . . 8–4

Inserting an SD Card . . . . . . . . . . . . . . . . . . . . . . . . . 8–4

Removing an SD Card. . . . . . . . . . . . . . . . . . . . . . . . 8–5

Adding and Upgrading Memory Modules . . . . . . . . . . . . 8–6

Adding a Memory Expansion Module . . . . . . . . . . . 8–6

Upgrading the Memory Module in the Primary

Memory Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10

Effects of Increasing Memory . . . . . . . . . . . . . . . . . . . . 8–14

9 Specifications

Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 9–1

Rated Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–2

Modem Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–2

Index

vi Hardware Guide

Hardware Features

Pointing Device Components

Component Description

Pointing stick Moves the pointer and selects or

Left and right pointing stick

buttons

TouchPad Moves the pointer and selects or

Left and right TouchPad

buttons

Hardware Guide 1–1

activates items on the screen.

Function like the left and right buttons on an external mouse.

activates items on the screen. Can be set to perform other mouse functions, such as scrolling and double-clicking.

Function like the left and right buttons on an external mouse.

Hardware Features

Top Components

Component Description

Quick Launch buttons (3) Enable you to access common

functions with a single keystroke.

Power button When the notebook is*

■ Off, press and release to turn

on the notebook.

■ In Standby, press and release

to exit Standby.

■ In Hibernation, press and

release to exit Hibernation.

If the system has stopped responding and Microsoft® Windows® shutdown procedures cannot be used, press and hold for 5 seconds to turn off the notebook.

*This table describes default settings. For information about changing the functions of the power button and about using Standby and Hibernation, refer to the “Power” chapter in the

Documentation Library

1–2 Hardware Guide

CD.

Software Guide

on the

(continued)

Component Description

Hardware Features

Not shown

Volume control buttons Increase, decrease, and mute the

Function keys Execute frequently used system

Applications key Displays shortcut menu for items

Display release latch recess Secures the display when it is

Windows logo key Displays the Windows Start menu.

Fn key Executes frequently used system

Primary memory compartment (not shown, located under the keyboard)

system volume.

functions when pressed in combination with the Fn key.

beneath the pointer.

closed.

functions when pressed in combination with another key.

Contains the primary memory slot.

Hardware Guide 1–3

Hardware Features

Left-Side Components

Component Description

Infrared port Links another IrDA-compliant device

PC Card eject button Ejects an optional PC Card from the

PC Card slot Supports optional Type I or Type II

Secure Digital (SD) Card slot Accepts SD Memory Cards used as

Audio line-out jack Connects optional powered stereo

for wireless communication.

PC Card slot.

32-bit (CardBus) or 16-bit PC Cards.

removable storage devices.

speakers, headphones, headset, or television audio.

Microphone input jack Connects an optional microphone.

Speaker Produces system sound.

1–4 Hardware Guide

Right-Side Components

Component Description

Security cable slot Attaches an optional security cable to

the notebook.

Hardware Features

The purpose of security

✎

solutions is to act as a deterrent. These solutions do not prevent the product from being mishandled or stolen.

Hard drive bay Holds the primary hard drive.

Exhaust vent Enables airflow to cool internal

Hardware Guide 1–5

components.

To prevent overheating, do

not obstruct vents. Using the notebook on a soft surface such as a pillow, blanket, rug, or thick clothing can block airflow.

Hardware Features

Front Components

Component Description

Antennae Send and receive wireless LAN

(WLAN) signals.

The antennae covers are not

removable. Removing the covers can cause damage to the antennae.

Display release latch Opens the notebook.

Microphone Inputs single-channel sound.

Exposure to Radio Frequency Radiation

The radiated output power of this device is below the FCC radio frequency exposure limits. Nevertheless, the device should be used in such a manner that the potential for human contact during normal operation is minimized. To avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna should not be less than 20 cm (8 inches) during normal operation, including when the notebook display is closed.

1–6 Hardware Guide

Rear Components

Component Description

S-Video-out jack Connects an optional S-Video device,

Hardware Features

such as a television, VCR, camcorder, overhead projector, or video capture card.

External monitor connector Connects an optional external monitor

USB connector Connects USB 1.1- and 2.0-compliant

Self-powered USB connector Connects USB 1.1- and 2.0-compliant

AC power connector Connects an AC adapter or an optional

RJ-45 network jack Connects a network cable.

RJ-11 telephone jack Connects a modem cable.

Hardware Guide 1–7

or overhead projector.

devices to the notebook using a standard USB cable.

devices to the notebook using a standard USB cable, or an optional External MultiBay to the notebook using the External MultiBay-Powered USB cable.

Automobile Power Adapter/Charger or Aircraft Power Adapter.

Hardware Features

Bottom Components

Component Description

Travel battery connector Connects the optional travel battery

Docking connector Connects the notebook to an optional

1–8 Hardware Guide

caddy. The travel battery connector has a plastic cover that must be opened before the travel battery caddy is connected.

HP Port Replicator or an HP Advanced Port Replicator.

(continued)

Hardware Features

Component Description

Mini PCI compartment Contains the Mini PCI wireless card.

The FCC does not allow

unauthorized Mini PCI devices to be used in this notebook. Installing an unauthorized Mini PCI device can prevent your notebook from operating properly and might result in a warning message. To resume proper notebook operation, remove the unauthorized device. Contact your HP Customer Care Center if a warning message about your Mini PCI device displays in error.

Intake vents Enable airflow to cool internal

Battery release latch Releases the primary battery pack

Quick Check button Displays the percentage of a full

components.

To prevent overheating, do

not obstruct vents. Using the notebook on a soft surface such as a pillow, blanket, rug, or thick clothing can block airflow.

from the battery bay.

charge remaining on a battery pack using the Quick Check lights.

Battery power gauge Indicates the charge remaining on a

Battery bay Holds the primary battery pack.

Memory expansion

compartment

Hardware Guide 1–9

battery pack.

Contains 1 memory expansion slot for optional memory expansion boards.

Hardware Features

Lights

Component Description

Hard drive activity On: The hard drive is being accessed.

Num lock On: Num lock is on or the embedded

Caps lock On: Caps lock is on.

Scroll lock On: Scroll lock is on.

Wireless on/off On: The wireless Mini PCI card and/or

Power/Standby On: Power is turned on.

Battery On: A battery pack is charging.

numeric keypad is enabled.

Bluetooth® are on. Off: The wireless Mini PCI card and

Bluetooth are off.

Blinking: Notebook is in Standby.

Blinking: A battery pack that is the only available power source has reached a low-battery condition. When the battery reaches a critical low-battery condition, the battery light begins blinking more quickly.

1–10 Hardware Guide

Labels

The labels affixed to the bottom of the notebook and to the inside of the battery compartment provide information you may need when you troubleshoot system problems or travel abroad with the notebook.

■ The Service Tag label affixed to the bottom of the notebook

■ The Microsoft Certificate of Authenticity label affixed to the

■ The System label affixed to the bottom of the notebook

■ The Modem Approval label affixed to the bottom of the

■ The WLAN label affixed to the bottom of the notebook

■ The Bluetooth® label affixed to the bottom of the notebook

Hardware Features

contains the product name, product number (P/N), and serial number (S/N). You will need the notebook serial number and product number if you call customer support.

bottom of the notebook contains the Product Key number. You may need this number to update or troubleshoot problems with the operating system.

provides regulatory information about the notebook.

notebook provides regulatory information and lists the agency markings required by some of the countries in which the modem has been approved for use. You may need to use this modem information in order to operate the modem while traveling internationally.

provides regulatory information and lists the agency markings required by some of the countries in which the optional wireless devices have been approved for use. You may need to use this wireless device information in order to operate the wireless device while traveling.

provides regulatory information and lists the agency markings required by some of the countries in which the optional device has been approved for use. You may need to use this wireless device information in order to operate the wireless device while traveling internationally. Bluetooth is not supported in all countries.

Hardware Guide 1–11

Pointing Devices and Keyboard

Using a Pointing Device

By default, the pointing stick and TouchPad components can be used interchangeably.

Pointing device components

Component Description

Pointing stick Moves the pointer and selects or

Left and right pointing stick

buttons

Hardware Guide 2–1

activates items on the screen.

Function like the left and right buttons on an external mouse.

(continued)

Pointing Devices and Keyboard

Component Description

TouchPad Moves the pointer and selects or

Left and right TouchPad

buttons

Using the Pointing Stick

To move the pointer, press the pointing stick in the direction you want to move the pointer. Use the left and right pointing stick buttons as you would the left and right buttons on an external mouse.

To change the pointing stick cap:

1. Save your work, exit all applications, and shut down the notebook. If you are not sure whether the notebook is off or in Hibernation, briefly press the power button. If your work returns to the screen, save your work, exit all applications, and then shut down the notebook.

2. Gently pull off the used pointing stick cap.

activates items on the screen. Can be set to perform other mouse functions, such as scrolling and double-clicking.

Function like the left and right buttons on an external mouse.

2–2 Hardware Guide

3. Push a replacement cap into place.

Replacing the pointing stick cap

Using the TouchPad

To move the pointer, slide your finger across the TouchPad surface in the direction you want to move the pointer. Use the left and right TouchPad buttons as you would the left and right buttons on an external mouse.

Pointing Devices and Keyboard

Using an External Mouse

An external USB mouse can be connected to the notebook using one of the USB connectors on the back panel. An external PS/2 or USB mouse can be connected to the system using the connectors on an optional HP Port Replicator or an HP Advanced Port Replicator.

Hardware Guide 2–3

Pointing Devices and Keyboard

Setting Pointing Device Preferences

Mouse Properties in Windows enables you to change custom settings for pointing devices, including:

■ Enabling or disabling a pointing device.

■ TouchPad tapping, which enables you to tap the TouchPad

once to select an object or twice to double-click an object.

■ Edge motion, which enables you to continue to scroll even

though your finger has reached the edge of the TouchPad.

■ Palm Check, which helps prevent moving the pointer

unintentionally if your palms contact the TouchPad as you type.

Other features, such as mouse speed preferences and mouse trails, are also found in the Mouse Properties windows.

To access Mouse Properties:

■ In Windows XP, select Start > Control Panel > Printers and

Other Hardware > Mouse icon.

■ In Windows 2000, select Start > Settings > Control Panel >

Mouse icon.

Using Hotkeys and Shortcut Keys

Hotkeys and shortcut keys are preset combinations of the Fn key with other keys on the keyboard.

■ A hotkey is a combination of the Fn key and one of the

function keys.The icons on the function keys represent the hotkey functions available on your notebook.

■ A shortcut key is a combination of the Fn key and a key other

than a function key.

2–4 Hardware Guide

Pointing Devices and Keyboard

Identifying Fn and Function Keys

Fn and function keys

Component

Fn key

Function keys

Hotkey and Shortcut Key Quick Reference

Key Combination to

Function

Initiate Standby Fn+F3 Power button

Switch display and image Fn+F4 Fn+F4

View battery information Fn+F8 Fn+F8

Decrease display brightness.

Increase display brightness.

Display system information Fn+esc Fn+esc

Hardware Guide 2–5

Activate Function

Fn+F9 N/A

Fn+F10 N/A

Key Combination to Deactivate Function

Pointing Devices and Keyboard

Hotkey and Shortcut Key Procedures

To use a hotkey or shortcut key command on the notebook keyboard, use either of the following procedures:

■ Briefly press the Fn key, and then briefly press the second key

of the hotkey command.

■ Press and hold down the Fn key, briefly press the second key

of the hotkey command, and then release both keys at the same time.

Hotkey and Shortcut Key Commands

Displaying System Information (Fn+esc)

Press Fn+esc to display information about system hardware components and software version numbers. Press time to remove the system information from the screen.

The system BIOS date is the version number of the system ROM.

✎

The BIOS date may display in a decimal format, for example, 10/19/2002 F.07.

Fn+esc a second

Initiating Standby (Fn+F3)

The Fn+F3 hotkey is set by default to initiate Standby. Standby can be initiated only while the notebook is on. If the notebook is in Hibernation, you must restore from Hibernation before you can initiate Standby.

To restore from Hibernation or resume from Standby, briefly press the power button. For more information about using Standby and Hibernation, refer to the “Power” chapter in the Software Guide on the Documentation Library CD.

2–6 Hardware Guide

Pointing Devices and Keyboard

Switching the Display (Fn+F4)

The Fn+F4 hotkey switches the image between display devices connected to the external monitor connector or the S-Video jack on the notebook. For example, if an external monitor is connected to the notebook, pressing the toggle the image between the notebook display, the external monitor display, and a simultaneous display on both the notebook and the monitor.

Most external monitors receive video information from the notebook using the external VGA video standard. The hotkey can also toggle images between other devices receiving video information from the notebook.

The following five video transmission types, with examples of devices that use them, are supported by the

■ LCD (notebook display)

■ External VGA (most external monitors)

■ S-Video (televisions, camcorders, VCRs, and video capture

boards with S-Video-in jacks)

Fn+F4 hotkey multiple times will

Fn+F4

Fn+F4 hotkey:

Viewing Battery Charge Information (Fn+F8)

Press Fn+F8 to display charge information for all installed battery packs. The display indicates which battery packs are charging and reports the amount of charge remaining in each battery pack.

Battery pack locations are indicated by number:

■ Location 1 is the primary battery pack.

■ Location 2 is the travel battery pack.

Decreasing Screen Brightness (Fn+F9)

The Fn+F9 hotkey decreases notebook screen brightness. Hold down the hotkey to decrease the brightness level incrementally.

Hardware Guide 2–7

Pointing Devices and Keyboard

Increasing Screen Brightness (Fn+F10)

The Fn+F10 hotkey increases notebook screen brightness. Hold down the hotkey to increase the brightness level incrementally.

Using Hotkeys and Shortcut Keys with External Keyboards

The following hotkeys and shortcut keys can be used as described with external keyboards:

■ Fn+esc

■ Fn+F8

To use hotkeys or shortcut keys on an external keyboard, press the scroll lock key twice, and then the other key of the hotkey combination. For example, to use the

lock+scroll lock+F8

Fn+F8 hotkey, press scroll

2–8 Hardware Guide

Pointing Devices and Keyboard

Using Quick Launch Buttons

The 3 Quick Launch buttons enable you to access common functions with a single keystroke.

Quick Launch buttons

Component Description

QuickLock button Disables the keyboard and pointing device and clears

Wireless On/Off

button

Presentation Mode

button

Hardware Guide 2–9

the display. Before you can use QuickLock, you must set a password and select preferences. For more information, refer to the “Security” chapter in the

Software Guide

Turns the wireless LAN or optional Bluetooth device on and off when these devices are enabled in the software utilities.

Sets the notebook to presentation mode, which opens a user-defined application, folder, file, or Web site. The image simultaneously displays on the notebook screen and an external device connected to the external monitor connector or S-Video-out jack on the rear panel or to connectors on an optional Port Replicator.

on the

Documentation Library

CD.

Pointing Devices and Keyboard

Using Keypads

The notebook has an internal numeric keypad and supports an optional external numeric keypad or an optional external keyboard that includes a numeric keypad.

Using the Embedded Numeric Keypad

The 15 keys of the embedded numeric keypad can be used like the keys on an external keypad. When the internal keypad is turned on, each key on the internal keypad performs the functions indicated by the icon in the upper right corner of the key.

Embedded numeric keypad components

Component

Num lock light

Num lk key

Embedded numeric keypad

Fn key

2–10 Hardware Guide

Pointing Devices and Keyboard

Enabling and Disabling the Internal Keypad

Press Fn+num lk to enable the embedded numeric keypad. The num lock light turns on. Press standard keyboard functions.

The numeric keypad cannot be enabled while an optional external

✎

keyboard or keypad is connected to the notebook or to an optional Port Replicator.

Fn+num lk again to return the keys to their

Switching Key Functions on the Internal Keypad

You can temporarily switch the functions of keys on the internal keypad between their standard keyboard functions and their keypad functions by using the combination.

■ To change the functions of a keypad key to keypad functions

while the keypad is off, press and hold the pressing a keypad key.

■ To use the keypad keys temporarily as standard keys while

the keypad is on:

❏ Press and hold the Fn key to type in lowercase.

❏ Press and hold Fn+shift to type in uppercase.

Fn key or the Fn+shift key

Fn key while

Using an External Keypad

Most keys on most external keypads function differently when num lock mode is on than when num lock mode is off. For example:

■ When num lock mode is on, most keypad keys type numbers.

■ When num lock mode is off, most keypad keys function like

arrow, page up, or page down keys.

When num lock mode on an external keypad is turned on, the num lock light on the notebook turns on. When the num lock mode on an external keypad is turned off, the num lock light on the notebook turns off.

Hardware Guide 2–11

Pointing Devices and Keyboard

If the external keypad is connected, the internal keypad cannot be turned on.

Enabling or Disabling Num Lock Mode as You Work

To turn num lock mode on or off on an external keypad as you work, press the

num lk key on the external keypad, not on the

notebook.

Enabling or Disabling Num Lock Mode at Startup

To set the notebook to start up with a connected external keypad in num lock mode, set your preference in Computer Setup. For more information about using Computer Setup, refer to the “Computer Setup” chapter in the Software Guide on the Documentation Library CD.

To set the notebook to start up with the external keypad enabled:

1. Turn on or restart the notebook.

2. Press

3. Select Advanced > Device Options, and then press

4. Select or clear the Num Lock State at Boot field:

5. Press

6. To save your preference and exit Computer Setup, select

Your preference is set as you exit Computer Setup and is in effect when the notebook restarts.

F10 while the F10 = ROM Based Setup message is

displayed in the lower left corner of the screen.

❏ To change the language, press F2.

❏ For navigation instructions, press F1.

enter.

❏ To start up an external keypad with num lock mode

turned on, select the field.

❏ To start up an external keypad with num lock mode

turned off, clear the field.

F10.

File > Save Changes and Exit, and then follow the instructions on the screen.

2–12 Hardware Guide

Battery Packs

Running the Notebook on Battery Power

When the notebook is connected to external AC power, the notebook runs on AC power.

When a charged battery pack is in the notebook and the notebook is not connected to external power, the notebook runs on battery power.

The notebook switches between AC power and battery power according to the availability of an external AC power source. For example, if the notebook contains a charged battery pack and is running on external AC power supplied through the AC adapter, the notebook will switch to battery power if the AC adapter is disconnected from the notebook.

You can leave a battery pack in the notebook or in storage, depending on how you work. Keeping a battery pack in the notebook enables the battery pack to charge whenever the notebook is connected to external AC power and also protects your work in case of a power outage.

On the other hand, battery packs in the notebook slowly discharge when the notebook is turned off and not connected to external power. For this reason, the primary battery pack is not shipped inside the notebook and must be inserted before the notebook can run on battery power.

Hardware Guide 3–1

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