HP EliteBook 820 User Manual

HP Notebook

User Guide

© Copyright 2013 Hewlett-Packard

Development Company, L.P.

SD Logo is a trademark of its proprietor.

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.

First Edition: September 2013

Document Part Number: 723687-001

Product notice

This guide describes features that are common to most models. Some features may not be available on your computer.

To obtain the latest information in this guide, contact support. For U.S. support, go to http://www.hp.com/go/contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/ wwcontact_us.html.

Software terms

By installing, copying, downloading, or otherwise using any software product preinstalled on this computer, you agree to be bound by the terms of the HP End User License Agreement (EULA). If you do not accept these license terms, your sole remedy is to return the entire unused product (hardware and software) within 14 days for a refund subject to the refund policy of your place of purchase.

For any further information or for requesting a full refund of the computer, please contact your local point of sale (the seller).

Safety warning notice

WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to come into contact with the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with the user-accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950).

iii

iv Safety warning notice

Table of contents

1 Welcome ..........................................................................................................................................................	1
Finding information ...............................................................................................................................	2
2 Getting to know your computer .....................................................................................................................	3
Top .......................................................................................................................................................	3
TouchPad ............................................................................................................................	3
Lights ...................................................................................................................................	4
Buttons and fingerprint reader (select models only) ............................................................	5
Keys .....................................................................................................................................	6
Front .....................................................................................................................................................	7
Right .....................................................................................................................................................	8
Left .......................................................................................................................................................	9
Display ................................................................................................................................................	10
Bottom ................................................................................................................................................	11
3 Networking ....................................................................................................................................................	13
Using an Internet service provider (ISP) ............................................................................................	13
Identifying wireless and network status icons ....................................................................................	13
Creating a wireless connection ..........................................................................................................	13
Turning wireless devices on and off ..................................................................................	13
Using the wireless button ..................................................................................	13
Using the operating system controls .................................................................	14
Using a WLAN ....................................................................................................................................	14
Connecting to an existing WLAN .......................................................................................	14
Setting up a new WLAN .....................................................................................................	15
Protecting your WLAN .......................................................................................................	15
Roaming to another network ..............................................................................................	16
Connecting to a wired network ...........................................................................................................	16
Connecting to a local area network (LAN) .........................................................................	16
4 Keyboard and pointing devices ...................................................................................................................	18
Using the keyboard ............................................................................................................................	18
Identifying the hot keys ......................................................................................................	18
Using keypads ...................................................................................................................	19
Using the embedded numeric keypad ...............................................................	19
Turning the embedded numeric keypad on and off ..........................	19

v

Switching key functions on the embedded numeric keypad .............	20
Using an optional external numeric keypad ......................................................	20
Using the TouchPad ...........................................................................................................................	20
Turning the TouchPad off and on ......................................................................................	21
Navigating ..........................................................................................................................	21
Selecting ............................................................................................................................	22
Using TouchPad gestures .................................................................................................	22
Tapping .............................................................................................................	23
Scrolling ............................................................................................................	23
Pinching/Zooming .............................................................................................	24
Setting pointing device preferences ...................................................................................	24
Using the pointing stick ......................................................................................................	24
5 Multimedia .....................................................................................................................................................	25
Using the audio features ....................................................................................................................	25
Adjusting the volume .........................................................................................................	25
Checking your audio functions ...........................................................................................	26
Using the webcam (select models only) .............................................................................................	26
Using video devices ...........................................................................................................................	26
VGA ...................................................................................................................................	26
DisplayPort ........................................................................................................................	28
6 Power management ......................................................................................................................................	29
Shutting down the computer ...............................................................................................................	29
Setting power options .........................................................................................................................	29
Using power-saving states .................................................................................................	29
Initiating and exiting Suspend ...........................................................................	30
Initiating and exiting Hibernation .......................................................................	30
Using the Power icon .........................................................................................................	30
Using power management .................................................................................................	30
Viewing the current power management settings .............................................	31
Changing the current power management settings ..........................................	31
Using battery power ...........................................................................................................................	31
Displaying the remaining battery charge ...........................................................................	31
Inserting or removing the battery .......................................................................................	31
Charging a battery .............................................................................................................	33
Maximizing battery life .......................................................................................................	34
Managing low battery levels ..............................................................................................	34
Identifying low battery levels .............................................................................	34
Resolving a low battery level .............................................................................	35
Resolving a low battery level when external power is available .......	35

vi

Resolving a low battery level when a charged battery is available ...	35
Resolving a low battery level when no power source is available ....	35
Resolving a low battery level when the computer cannot exit
Hibernation .......................................................................................	35
Conserving battery power ..................................................................................................	35
Storing a battery ................................................................................................................	35
Disposing of a used battery ...............................................................................................	36
Replacing the battery .........................................................................................................	36
Using external AC power ....................................................................................................................	36
Testing an AC adapter .......................................................................................................	36
7 Drives .............................................................................................................................................................	38
Handling drives ...................................................................................................................................	38
Using hard drives ...............................................................................................................................	38
Removing or replacing the service door ............................................................................	39
Removing the service door ...............................................................................	39
Replacing the service door ................................................................................	39
Replacing or upgrading the hard drive ...............................................................................................	40
Removing the hard drive ....................................................................................................	40
Installing a hard drive .........................................................................................................	42
8 External cards and devices ..........................................................................................................................	43
Using Memory Card Readers .............................................................................................................	43
Inserting a memory card ....................................................................................................	43
Removing a memory card ..................................................................................................	43
Using smart cards ..............................................................................................................................	44
Inserting a smart card ........................................................................................................	44
Removing a smart card ......................................................................................................	44
Using a USB device ...........................................................................................................................	45
Connecting a USB device ..................................................................................................	46
Removing a USB device ....................................................................................................	46
Using optional external devices ..........................................................................................................	46
Using optional external drives ............................................................................................	47
9 Memory modules ..........................................................................................................................................	48
10 Security ........................................................................................................................................................	51
Protecting the computer .....................................................................................................................	51
Using passwords ................................................................................................................................	51
Setting passwords in the operating system .......................................................................	52

vii

Setting passwords in Computer Setup ..............................................................................	52
Managing a BIOS administrator password ........................................................	53
Entering a BIOS administrator password ..........................................................	53
Using a Computer Setup DriveLock password ..................................................................	53
Managing a DriveLock password ......................................................................	54
Entering a DriveLock password ........................................................................	54
Using Computer Setup Automatic DriveLock .....................................................................................	54
Managing an Automatic DriveLock password ....................................................................	54
Using firewall software .......................................................................................................................	54
11 Backup and Recovery ................................................................................................................................	56
Creating backups ...............................................................................................................................	56
Backing up your information ...............................................................................................................	56
Performing a system recovery ............................................................................................................	57
Remove everything and reinstall SLED ..............................................................................................	57
12 Computer Setup (BIOS) and Advanced System Diagnostics .................................................................	59
Starting Computer Setup ....................................................................................................................	59
Using Computer Setup .......................................................................................................................	59
Navigating and selecting in Computer Setup .....................................................................	59
Restoring factory settings in Computer Setup ...................................................................	60
Updating the BIOS .............................................................................................................................	60
Determining the BIOS version ...........................................................................................	60
Downloading a BIOS update .............................................................................................	61
Using Advanced System Diagnostics .................................................................................................	62
13 MultiBoot .....................................................................................................................................................	63
About the boot device order ...............................................................................................................	63
Enabling boot devices in Computer Setup .........................................................................................	64
Considering boot order changes ........................................................................................................	64
Choosing MultiBoot preferences ........................................................................................................	65
Setting a new boot order in Computer Setup .....................................................................	65
Dynamically choosing a boot device using the f9 prompt ..................................................	66
Setting a MultiBoot Express prompt ..................................................................................	66
Entering MultiBoot Express preferences ...........................................................................	66
Appendix A Troubleshooting and support ....................................................................................................	67
Troubleshooting ..................................................................................................................................	67
The computer is unable to start up ....................................................................................	67
The computer screen is blank ............................................................................................	67

viii

Software is functioning abnormally ....................................................................................	67
The computer is on but is not responding ..........................................................................	67
The computer is unusually warm .......................................................................................	68
An external device is not working ......................................................................................	68
The wireless network connection is not working ................................................................	68
Contacting support .............................................................................................................................	69
Labels .................................................................................................................................................	70
Appendix B Cleaning your computer .............................................................................................................	71
Cleaning products ..............................................................................................................................	71
Cleaning procedures ..........................................................................................................................	71
Cleaning the display ..........................................................................................................	71
Cleaning the sides and cover ............................................................................................	71
Cleaning the TouchPad and keyboard ..............................................................................	72
Cleaning a tablet PC pen and pen holder (select models only) .........................................	72
Appendix C Specifications ..............................................................................................................................	73
Input power .........................................................................................................................................	73
Operating environment .......................................................................................................................	73
Appendix D Electrostatic discharge ..............................................................................................................	74
Index ...................................................................................................................................................................	75

ix

x

1 Welcome

After you set up and register the computer, take the following steps:

●Connect to the Internet—Set up your wired or wireless network so that you can connect to the Internet. For more information, see Networking on page 13.

●Get to know your computer—Learn about your computer features. See Getting to know your computer on page 3 and Keyboard and pointing devices on page 18 for additional information.

●Find installed software—Access a list of the software preinstalled on the computer. Select

Computer > More Applications.

NOTE: For details about using the software included with the computer, select Computer > Help. You can also see the software manufacturer's instructions, which may be provided with the software or on the manufacturer's Web site.

●Back up your hard drive by creating recovery discs. See Backup and Recovery on page 56

●Update programs and drivers—Update your programs and drivers with the latest versions on a regular basis. When your computer is registered, it will automatically be updated with the latest versions. When you register, you can choose to receive automatic notifications when updates become available. The automatic notifications for operating system updates are available for 90 days. For U.S. support, go to http://www.hp.com/go/contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html.

1

Finding information

The computer comes with several resources to help you perform various tasks.

	Resources	For information about
	Setup Instructions poster	●	Setting up the computer
		●	Identifying computer components
	Linux Help	●	Computer software
	To access the Linux Help, select Computer > Help.	●	Computer settings
		● Connecting to the Internet
		●	Computer utilities
	Regulatory, Safety, and Environmental Notices	●	Regulatory and safety information
	To access the notices, double-click the HP	●	Battery disposal information
	Documents icon located on the desktop.
	Safety & Comfort Guide	●	Proper workstation setup, posture, health, and work habits
	To access this guide, double-click the HP Documents	●	Electrical and mechanical safety information
	icon located on the desktop.
	– or –
	Go to http://www.hp.com/ergo.
	Worldwide Telephone Numbers booklet	HP support telephone numbers
	This booklet is provided with your computer.
	HP Web site	●	Support information
	For U.S. support, go to http://www.hp.com/go/	●	Ordering parts and finding additional help
	contactHP. For worldwide support, go to	●	Software, driver, and BIOS updates
	http://welcome.hp.com/country/us/en/
	wwcontact_us.html.	●	Accessories available for the device
	Limited Warranty*	Warranty information
	To access the warranty:

Double-click the HP Documents icon located on the desktop.

– or –

Go to http://www.hp.com/go/orderdocuments.

*You can find the expressly provided HP Limited Warranty applicable to your product located with the user guides on your computer and/or on the CD/DVD provided in the box. In some countries/regions, HP may provide a printed HP Limited Warranty in the box. For some countries/regions where the warranty is not provided in printed format, you may request a printed copy from http://www.hp.com/go/orderdocuments or write to:

●North America: Hewlett-Packard, MS POD, 11311 Chinden Blvd., Boise, ID 83714, USA

●Europe, Middle East, Africa: Hewlett-Packard, POD, Via G. Di Vittorio, 9, 20063, Cernusco s/Naviglio (MI), Italy

●Asia Pacific: Hewlett-Packard, POD, P.O. Box 200, Alexandra Post Office, Singapore 911507

When you request a printed copy of your warranty, please include your product number, warranty period (found on your service label), name, and postal address.

IMPORTANT: Do NOT return your HP product to the addresses above. For U.S. support, go to http://www.hp.com/go/ contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html.

2 Chapter 1 Welcome

2 Getting to know your computer

Top

TouchPad

NOTE: Your computer may look slightly different from the illustration in this section.

Component		Description
(1)	Pointing stick	Moves the pointer and selects or activates items on the
		screen.
(2)	Left pointing stick button	Functions like the left button on an external mouse.
(3)	TouchPad on/off button	Turns the TouchPad on and off.
(4)	TouchPad zone	Moves the pointer and selects or activates items on the
		screen.
(5)	Left TouchPad button	Functions like the left button on an external mouse.
(6)	Right pointing stick button	Functions like the right button on an external mouse.
(7)	Right TouchPad button	Functions like the right button on an external mouse.

Top 3

Lights

Component		Description
(1)	Power light	● On: The computer is on.
		● Blinking: The computer is in the Sleep state.
		● Off: The computer is off or in Hibernation.
(2)	Caps lock light	On: Caps lock is on.
(3)	Microphone mute light	On: Microphone is muted.
(4)	Num lock light	On: Num lock is on.
(5)	Wireless light	● White: An integrated wireless device, such as a
		wireless local area network (WLAN) device, is on.
		● Amber: All wireless devices are off.
(6)	Mute light	● Amber: Computer sound is off.
		● Off: Computer sound is on.

4	Chapter 2 Getting to know your computer

Buttons and fingerprint reader (select models only)

Component		Description
(1)	Power button	●	When the computer is off, press the button to turn on
			the computer.
		●	When the computer is on, press the button briefly to
			initiate Suspend.
		●	When the computer is in the Suspend state, press the
			button briefly to exit Suspend.
		●	When the computer is in Hibernation, press the button
			briefly to exit Hibernation.
		If the computer has stopped responding and operating
		system shutdown procedures are ineffective, press and hold
		the power button for at least 5 seconds to turn off the
		computer.
		To learn more about your power settings:
		1.	Select Computer > Control Center.
		2.	In the left pane, click System, and then click Power
			Management in the right pane.
(2)	Speakers (2)	Produce sound.
(3)	Wireless button	Turns the wireless feature on or off but does not establish a
		wireless connection.
(4)	Volume mute button	Mutes and restores speaker sound.
(5)	Fingerprint reader (select models only)	Allows a fingerprint logon instead of a password logon.

Top 5

Keys

Component		Description
(1)	fn key	Executes frequently used system functions when pressed
		in combination with a function key, the num lk key, the esc
		key, or the b key.
(2)	Function keys	Execute frequently used system functions when pressed in
		combination with the fn key.
(3)	Embedded numeric keypad keys	When the keypad is turned on, it can be used like an
		external numeric keypad.
		Each key on the keypad performs the function indicated by
		the icon in the upper-right corner of the key
(4)	num lk key

Turns the embedded numeric keypad on and off when pressed in combination with the fn key.

Alternates between the navigational and numeric functions on the integrated numeric keypad.

6	Chapter 2 Getting to know your computer

Front

Component		Description
(1)	Wireless light	The wireless connection is on.
(2)	Power light	● On: The computer is on.
		● Blinking: The computer is in the Sleep state.
		● Off: The computer is off or in Hibernation.
(3)	AC adapter/Battery light	● Amber: The computer is connected to external
		power and the battery is charged from 0 to 90
		percent.
		● White: The computer is connected to external
		power and the battery is charged from 90 to 99
		percent.
		● Blinking amber: A battery that is the only
		available power source has reached a low
		battery level. When the battery reaches a critical
		battery level, the battery light begins blinking
		rapidly.
		● Off: The battery is fully charged.
(4)	Hard drive light	● Blinking white: The hard drive is being accessed.
		● Amber: HP 3D DriveGuard has temporarily
		parked the hard drive.

NOTE: For information on HP 3D DriveGuard, see the HP Notebook Reference Guide.

Front 7

Right

Component		Description
(1)	Audio-out (headphone) jack/Audio-in	Produces sound when connected to optional powered
	(microphone) jack	stereo speakers, headphones, earbuds, a headset, or
		television audio. Also connects an optional headset
		microphone.
		WARNING! To reduce the risk of personal injury, adjust
		the volume before putting on headphones, earbuds, or a
		headset. For additional safety information, see the
		Regulatory, Safety, and Environmental Notices.
		NOTE: When a device is connected to the jack, the
		computer speakers are disabled.
		NOTE: Be sure that the device cable has a 4-conductor
		connector that supports both audio-out (headphone) and
		audio-in (microphone).
(2)	DisplayPort	Connects an optional digital display device, such as a high-
		performance monitor or projector.
(3)	USB 3.0 ports (2)	Connect optional USB 3.0 devices and provide enhanced
		USB power performance.
(4)	Memory card reader	Reads data from and writes data to memory cards such as
		Secure Digital (SD).
(5)	RJ-45 (network) jack	Connects a network cable.
(6)	Docking port	Connects an optional docking device.
(7)	Power connector	Connects an AC adapter.

8	Chapter 2 Getting to know your computer

Left

Component		Description
(1)	Security cable slot	Attaches an optional security cable to the computer.
		NOTE: The security cable is designed to act as a
		deterrent, but it may not prevent the computer from being
		mishandled or stolen.
(2)	Vents, 2	Enable airflow to cool internal components.
		NOTE: The computer fan starts up automatically to cool
		internal components and prevent overheating. It is normal
		for the internal fan to cycle on and off during routine
		operation.
(3)	External VGA monitor port	Connects an external VGA monitor or projector.
(4)	USB 3.0 charging port	Connects an optional USB device. The USB charging port
		can also charge select models of cell phones and MP3
		players, even when the computer is off.
		NOTE: A USB charging port (also referred to as a
		powered USB port) allows you to charge connected USB
		devices. Standard USB ports will not charge all USB
		devices or will charge using a low current. Some USB
		devices require power and require you to use a powered
		port.
(5)	Smart card reader	Supports optional smart cards.

Left 9

Display

Component		Description
(1)	WLAN antennas (2)*	Send and receive wireless signals to communicate with wireless
		local area networks (WLAN).
		NOTE: To set up a WLAN and connect to the Internet, you
		need a broadband modem (either DSL or cable) (purchased
		separately), high-speed Internet service, purchased from an
		Internet service provider, and a wireless router (purchased
		separately).
(2)	WWAN antennas (2)*	Send and receive wireless signals to communicate with wireless
		wide area networks (WWAN).
(3)	Internal microphones (2)	Record sound.
(4)	Webcam light (select models only)	On: The webcam is in use.
(5)	Webcam (select models only)	Records video and captures still photographs.
(6)	Internal display switch	Turns off the display or initiates Sleep if the display is closed
		while the power is on.

NOTE: The display switch is not visible from the outside of the computer.

*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately around the antennas free from obstructions. To see wireless regulatory notices, see the section of the Regulatory, Safety, and Environmental Notices that applies to your country or region.

10 Chapter 2 Getting to know your computer

Bottom

Component		Description
(1)	Service door	Provides access to the hard drive bay, the
		wireless LAN (WLAN) module slot, the WWAN
		module slot, and the memory module slots.
		CAUTION: To prevent an unresponsive
		system, replace the wireless module only with
		a wireless module authorized for use in the
		computer by the governmental agency that
		regulates wireless devices in your country or
		region. If you replace the module and then
		receive a warning message, remove the
		module to restore computer functionality, and
		then contact support.

Bottom 11

Component		Description
(2)	Service door release lock	Releases the service door from the computer.
		A security screw is available to prevent the
		service door from being accidentally removed.

(3)

Vents (2)

Enable airflow to cool internal components.

NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation.

12 Chapter 2 Getting to know your computer

3 Networking

Your computer may support one or both of the following types of Internet access:

●Wireless—For mobile Internet access, you can use a wireless connection. See Connecting to an existing WLAN on page 14 or Setting up a new WLAN on page 15.

●Wired—You can access the Internet by connecting to a wired network. For information on connecting to a wired network, see Connecting to a wired network on page 16.

NOTE: Internet hardware and software features vary depending on computer model and your location.

Using an Internet service provider (ISP)

Before you can connect to the Internet, you must establish an ISP account. Contact a local ISP to purchase Internet service and a modem. The ISP can help set up the modem, install a network cable to connect your wireless computer to the modem, and test the Internet service.

NOTE: Your ISP will give you a user ID and password to access the Internet. Record this information and store it in a safe place.

Identifying wireless and network status icons

Icon	Name	Description
	Wireless (connected)	Indicates that one or more wireless devices are on.
	Network Connection	Indicates that the wired network is connected and active. If both
	(connected)	wired and wireless connections are active, the operating system
		uses the wired connection because it is faster.
	Network Connection	Indicates that wired and wireless networks are not connected.
	(disconnected)

Creating a wireless connection

Your computer may be equipped with one or more of the following wireless devices:

●Wireless local area network (WLAN) device

●HP Mobile Broadband Module, a wireless wide area network (WWAN) device

Turning wireless devices on and off

Using the wireless button

Use the wireless button to turn the wireless network controller off or on. This can also be controlled through Control Center or Computer Setup.

Using an Internet service provider (ISP) 13

NOTE: See Getting to know your computer on page 3 for information on identifying the type and location of the wireless button on your computer.

Using the operating system controls

To enable or disable a wireless or wired network device:

1.Right-click the Network Connection icon in the notification area, at the far right of the taskbar.

2.To enable or disable one of the following devices, select or clear one of the following options:

●Enable Networking (all network devices)

●Enable Wireless

Using a WLAN

A wireless connection connects the computer to Wi-Fi networks, or WLANs. A WLAN is composed of other computers and accessories that are linked by a wireless router or a wireless access point.

NOTE: When creating a wireless connection or allowing access to users in a network, you are prompted for the root password.

Connecting to an existing WLAN

1.Be sure that the WLAN device is on.

NOTE: See Getting to know your computer on page 3 for information on identifying the location of the wireless button and wireless light on your computer.

2.Click the Network Connection icon in the notification area, at the far right of the taskbar. Available wireless networks are listed under Wireless Networks.

3.Click the desired wireless network.

If the network is a security-enabled WLAN, you are prompted to enter a network security code. Type the code, and then click OK to complete the connection.

NOTE: To connect to a network that is not automatically detected, click the Network Connection icon and select Connect to Hidden Wireless Network. Enter the ESSID information, and set encryption parameters.

NOTE: If no WLANs are listed, and your network is not hidden, you are out of range of a wireless router or access point.

If you do not see the network you want to connect to, right-click the Network Connection icon in the notification area, at the far right of the taskbar, and click Edit Connections.

14 Chapter 3 Networking

Setting up a new WLAN

Required equipment:

●A broadband modem (either DSL or cable) (1) and high-speed Internet service purchased from an Internet service provider (ISP)

●A wireless router (purchased separately) (2)

●The wireless computer (3)

The illustration below shows an example of a wireless network installation that is connected to the Internet.

NOTE: Some cable modems include a built-in router. Check with your ISP to see if you need a separate router.

NOTE: When setting up a wireless connection, be sure that your computer and wireless router are synchronized. To synchronize your computer and wireless router, turn your computer and wireless router off and then back on.

As your network grows, additional wireless and wired computers can be connected to the network to access the Internet.

For help in setting up your WLAN, see the information provided by your router manufacturer or your ISP.

Protecting your WLAN

When you set up a WLAN or access an existing WLAN, always enable security features to protect your network from unauthorized access. WLANs in public areas (hotspots) like coffee shops and airports may not provide any security. If you are concerned about the security of your computer in a hotspot, limit your network activities to e-mail that is not confidential and basic Internet surfing.

Wireless radio signals travel outside the network, so other WLAN devices can pick up unprotected signals. You can use the following precautions to protect your WLAN:

●Use a firewall—Checks both data and requests for data that are sent to your network, and discards any suspicious items. Firewalls are available in both software and hardware. Some networks use a combination of both types.

●Wireless encryption—Your computer supports three encryption protocols:

◦Wi-Fi Protected Access (WPA)

◦Wi-Fi Protected Access II (WPA2)

◦Wired Equivalent Privacy (WEP)

Using a WLAN 15

NOTE: HP recommends that you select WPA2, which is the most advanced of the three encryption protocols. The use of WEP encryption is not recommended, because it can be overcome with little effort.

●Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access II (WPA2) use security standards to encrypt and decrypt data transmitted over the network. Both WPA and WPA2 dynamically generate a new key for every packet, and they also generate a different set of keys for each computer on the network. To accomplish this:

◦WPA uses Advanced Encryption Standard (AES) and Temporal Key Integrity Protocol (TKIP).

◦WPA2 uses Cipher Block Chaining Message Authentication Code Protocol (CCMP), which is a new AES protocol.

●Wired Equivalent Privacy (WEP) encrypts data with a WEP key before it is transmitted. Without the correct key, others will not be able to use the WLAN.

Roaming to another network

When you move your computer within range of another WLAN, the operating system attempts to connect to that network. If the attempt is successful, your computer is automatically connected to the new network. If the operating system does not recognize the new network, follow the same procedure you used initially to connect to your WLAN.

Connecting to a wired network

Connecting to a local area network (LAN)

Connecting to a local area network (LAN) requires an 8-pin, RJ-45 network cable (purchased separately). If the network cable contains noise suppression circuitry (1), which prevents interference from TV and radio reception, orient the circuitry end of the cable (2) toward the computer.

To connect the network cable:

1.Plug the network cable into the network jack (1) on the computer.

16 Chapter 3 Networking

2.Plug the other end of the cable into a network wall jack (2) or a router (not illustrated).

WARNING! To reduce the risk of electric shock, fire, or damage to the equipment, do not plug a modem or telephone cable into the RJ-45 (network) jack.

Connecting to a wired network 17