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
1Welcome
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
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
●
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://welcome.hp.com/country/us/en/wwcontact_us.html.
http://www.hp.com/go/contactHP. For worldwide support, go to
Backup and Recovery on page 56
Getting to know your
1
Finding information
The computer comes with several resources to help you perform various tasks.
Resources For information about
Setup Instructions poster
Linux Help
To access the Linux Help, select Computer > Help.
Regulatory, Safety, and Environmental Notices
To access the notices, double-click the HP
Documents icon located on the desktop.
Safety & Comfort Guide
To access this guide, double-click the HP Documents
icon located on the desktop.
– or –
Go to
http://www.hp.com/ergo.
Worldwide Telephone Numbers booklet
This booklet is provided with your computer.
HP Web site
For U.S. support, go to
contactHP. For worldwide support, go to
http://welcome.hp.com/country/us/en/
wwcontact_us.html.
http://www.hp.com/go/
Setting up the computer
●
Identifying computer components
●
● Computer software
Computer settings
●
Connecting to the Internet
●
● Computer utilities
Regulatory and safety information
●
Battery disposal information
●
Proper workstation setup, posture, health, and work habits
●
Electrical and mechanical safety information
●
HP support telephone numbers
Support information
●
Ordering parts and finding additional help
●
Software, driver, and BIOS updates
●
Accessories available for the device
●
Limited Warranty*
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
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
contactHP. For worldwide support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html.
2 Chapter 1 Welcome
Warranty information
http://www.hp.com/go/orderdocuments or write to:
http://www.hp.com/go/
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
(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
(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.
screen.
screen.
Top 3
Lights
Component Description
(1)
(2) Caps lock light On: Caps lock is on.
(3)
(4) Num lock light On: Num lock is on.
(5)
(6)
Power light
Microphone mute light On: Microphone is muted.
Wireless light ● White: An integrated wireless device, such as a
Mute light
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off or in Hibernation.
●
wireless local area network (WLAN) device, is on.
Amber: All wireless devices are off.
●
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)
(2) Speakers (2) Produce sound.
(3)
(4)
Power button
Wireless button Turns the wireless feature on or off but does not establish a
Volume mute button Mutes and restores speaker sound.
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.
wireless connection.
(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
(2) Function keys Execute frequently used system functions when pressed in
(3) Embedded numeric keypad keys When the keypad is turned on, it can be used like an
(4) num lk key
in combination with a function key, the num lk key, the esc
key, or the b key.
combination with the fn key.
external numeric keypad.
Each key on the keypad performs the function indicated by
the icon in the upper-right corner of the 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)
(2)
(3)
(4)
Wireless light The wireless connection is on.
Power light
AC adapter/Battery light
Hard drive light
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off or in Hibernation.
●
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.
●
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)
(2)
(3)
(4) Memory card reader Reads data from and writes data to memory cards such as
(5)
(6) Docking port Connects an optional docking device.
Audio-out (headphone) jack/Audio-in
(microphone) jack
DisplayPort Connects an optional digital display device, such as a high-
USB 3.0 ports (2) Connect optional USB 3.0 devices and provide enhanced
RJ-45 (network) jack Connects a network cable.
Produces sound when connected to optional powered
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).
performance monitor or projector.
USB power performance.
Secure Digital (SD).
(7)
Power connector Connects an AC adapter.
8 Chapter 2 Getting to know your computer
Left
Component Description
(1)
(2) Vents, 2 Enable airflow to cool internal components.
(3)
(4)
(5) Smart card reader Supports optional smart cards.
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.
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.
External VGA monitor port Connects an external VGA monitor or projector.
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.
Left 9
Display
Component Description
(1) WLAN antennas (2)* Send and receive wireless signals to communicate with wireless
(2) WWAN antennas (2)* Send and receive wireless signals to communicate with wireless
(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
*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.
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).
wide area networks (WWAN).
while the power is on.
NOTE: The display switch is not visible from the outside of the
computer.
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)
(3) Vents (2) Enable airflow to cool internal components.
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.
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
3Networking
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
●
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
NOTE: Internet hardware and software features vary depending on computer model and your
location.
Connecting to a wired network on page 16.
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.
Connecting to an
Network Connection
(connected)
Network Connection
(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.
Indicates that the wired network is connected and active. If both
wired and wireless connections are active, the operating system
uses the wired connection because it is faster.
Indicates that wired and wireless networks are not connected.
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
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