Compaq G42 User Manual
Compaq Presario CQ42 Notebook
PC and HP G42 Notebook PC
Maintenance and Service Guide
SUMMARY
This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides
comprehensive information on identifying computer features, components, and spare parts;
troubleshooting computer problems; and performing computer disassembly procedures.
© Copyright 2010 Hewlett-Packard
Development Company, L.P.
Bluetooth is a trademark owned by its
proprietor and used by Hewlett-Packard
Company under license. Intel and
Arrandale are trademarks of Intel
Corporation in the United States and other
countries. Microsoft and Windows are U.S.
registered trademarks of Microsoft
Corporation. 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: March 2010
Document Part Number: 594158-001
MSG revision history
Revision Publication date Description
A March 2010 Edited this guide to include HP G42 Notebook PC and Compaq CQ42
Notebook PC information only.
B October 2010
C December 2010 ● Added newly supported hard drives to spare parts listings in the
Added newly supported hard drives to spare parts listings in the
●
following locations:
Mass storage devices on page 34, Sequential part number
listing on page 37, Hard drive on page 53.
Added newly supported memory modules to spare parts listings
●
in the following locations:
on page 24, Mass storage devices on page 34, Sequential part
number listing on page 37, Memory module on page 61.
● Added newly supported processors to spare parts listings in the
following locations: Computer major components on page 24,
Mass storage devices on page 34, Sequential part number
listing on page 37, Processor on page 94.
● Added newly supported system boards to spare parts listings in
the following locations: Computer major components
on page 24, Mass storage devices on page 34, Sequential part
number listing on page 37, System board on page 83.
following locations:
Hard drive on page 53.
● Added newly supported processors to spare parts listings in the
following locations: Computer major components on page 24,
Mass storage devices on page 34, Sequential part number
listing on page 37, Processor on page 94.
Added newly supported system boards to spare parts listings in
●
the following locations: Computer major components
on page 24, Mass storage devices on page 34, Sequential part
number listing on page 37, System board on page 83.
Computer major components on page 24,
Computer major components
Computer major components on page 24
Added newly supported wireless devices to spare parts listing in
●
the following locations:
on page 24, Sequential part number listing on page 37,
Component replacement procedures on page 50, WLAN
Module.
Computer major components
ENWW iii
iv MSG revision history ENWW
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
contact 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).
ENWW v
vi Safety warning notice ENWW
Table of contents
1 Product description ........................................................................................................................................ 1
2 External component identification .............................................................................................................. 11
Identifying the hardware ..................................................................................................................... 11
Top components ................................................................................................................................. 12
TouchPad .......................................................................................................................... 12
Lights ................................................................................................................................. 13
Button and speakers .......................................................................................................... 14
Keys ................................................................................................................................... 15
Display ............................................................................................................................... 16
Right-side components ....................................................................................................................... 17
Left-side components ......................................................................................................................... 18
Bottom components ........................................................................................................................... 19
Wireless antennas .............................................................................................................................. 20
Additional hardware components ....................................................................................................... 21
3 Illustrated parts catalog ............................................................................................................................... 23
Serial number location ........................................................................................................................ 23
Computer major components ............................................................................................................. 24
Display assembly components ........................................................................................................... 31
Plastics Kit .......................................................................................................................................... 33
Mass storage devices ......................................................................................................................... 34
Miscellaneous parts ............................................................................................................................ 36
Sequential part number listing ............................................................................................................ 37
4 Removal and replacement procedures ....................................................................................................... 45
Preliminary replacement requirements ............................................................................................... 45
Tools required .................................................................................................................... 45
Service considerations ....................................................................................................... 45
Plastic parts ....................................................................................................... 45
Cables and connectors ..................................................................................... 46
Drive handling ................................................................................................... 46
Grounding guidelines ......................................................................................................... 47
ENWW vii
Electrostatic discharge damage ........................................................................ 47
Packaging and transporting guidelines ............................................. 48
Workstation guidelines ..................................................................... 48
Equipment guidelines ....................................................................... 49
Component replacement procedures ................................................................................................. 50
Serial number .................................................................................................................... 50
Computer feet .................................................................................................................... 51
Battery ............................................................................................................................... 52
Hard drive .......................................................................................................................... 53
Optical drive ....................................................................................................................... 56
WLAN module .................................................................................................................... 58
Memory module ................................................................................................................. 61
Keyboard ........................................................................................................................... 63
Top cover ........................................................................................................................... 65
Speaker assembly ............................................................................................................. 68
Power button board ........................................................................................................... 69
TouchPad button board ..................................................................................................... 70
Modem module .................................................................................................................. 71
Bluetooth module ............................................................................................................... 73
USB board ......................................................................................................................... 74
Power connector cable ...................................................................................................... 75
Display assembly ............................................................................................................... 76
System board ..................................................................................................................... 83
Optical drive SATA cable and connector ........................................................................... 87
RTC battery ....................................................................................................................... 89
Fan/heat sink assembly ..................................................................................................... 91
Processor ........................................................................................................................... 94
5 Setup Utility ................................................................................................................................................... 97
Computer Setup in Windows 7 ........................................................................................................... 97
Starting Setup Utility .......................................................................................................... 97
Using Setup Utility ............................................................................................................. 97
Changing the language of Setup Utility ............................................................. 97
Navigating and selecting in Setup Utility ........................................................... 98
Displaying system information .......................................................................... 98
Restoring default settings in Setup Utility .......................................................... 99
Exiting Setup Utility ......................................................................................... 100
Setup Utility menus .......................................................................................................... 100
Main menu ...................................................................................................... 100
Security menu ................................................................................................. 100
System Configuration menu ............................................................................ 101
Diagnostics menu ............................................................................................ 101
Computer Setup in Linux .................................................................................................................. 102
viii ENWW
Starting Computer Setup ................................................................................................. 102
Using Computer Setup .................................................................................................... 102
Navigating and selecting in Computer Setup .................................................. 102
Restoring factory settings in Computer Setup ................................................. 103
Computer Setup menus ................................................................................................... 104
File menu ........................................................................................................ 104
Security menu ................................................................................................. 105
Diagnostics menu ............................................................................................ 105
System Configuration menu ............................................................................ 106
6 Specifications .............................................................................................................................................. 109
Computer specifications ................................................................................................................... 109
35.6-cm (14.0-in) display specifications ........................................................................................... 110
Hard drive specifications .................................................................................................................. 111
DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications ....................................... 112
Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications .............................. 113
System resource specifications ........................................................................................................ 114
7 Backup and recovery .................................................................................................................................. 115
Windows 7 ........................................................................................................................................ 115
Creating recovery discs ................................................................................................... 116
Backing up your information ............................................................................................ 117
Using Windows Backup and Restore .............................................................. 118
Using system restore points ............................................................................ 119
When to create restore points ........................................................ 119
Create a system restore point ........................................................ 119
Restore to a previous date and time ............................................... 119
Performing a recovery ..................................................................................................... 119
Recovering from the recovery discs ................................................................ 120
Recovering from the dedicated recovery partition (select models only) .......... 120
Linux backup and recovery .............................................................................................................. 121
8 Connector pin assignments ....................................................................................................................... 123
Audio-out (headphone) ..................................................................................................................... 123
Audio-in (microphone) ...................................................................................................................... 123
External monitor ............................................................................................................................... 124
RJ-11 (modem) ................................................................................................................................ 125
RJ-45 (network) ................................................................................................................................ 125
HDMI ................................................................................................................................................ 126
Universal Serial Bus ......................................................................................................................... 127
9 Power cord set requirements .................................................................................................................... 129
Requirements for all countries or regions ......................................................................................... 129
ENWW ix
Requirements for specific countries or regions ................................................................................ 130
10 Recycling ................................................................................................................................................... 131
Battery .............................................................................................................................................. 131
Display .............................................................................................................................................. 131
Index ................................................................................................................................................................. 137
x ENWW
1 Product description
Category Description HP G42 HP G42 Compaq
Discrete UMA Discrete UMA Models
Product
Name
HP G42 Notebook
Processors Intel® Arrandale™
i7-620M, 2.66-GHz,
i5-540M, 2.53-GHz,
i5-520M, 2.4-GHz,
i5-430M 2.26-GHz
Compaq Presario
CQ42 Notebook PC
PC
SC turbo, 4-MB L3
cache
SC turbo, 3-MB L3
cache
SC turbo, 3-MB L3
cache
(turbo to 2.53- GHz)
3-MB L3 cache
√√√
√√
√√√√
√√√√
√√√√
√√√√
Presario
CQ42
Compaq
Presario
CQ42
150-199
Compaq
Presario
CQ42
UMA Models
100-149
i3-350M, 2.26-GHz
3-MB L3 cache
i3-330M, 2.13-GHz
3-MB L3 cache
i3-390M processor
2.66-GHz 3MB 35W
i5-480M processor
2.66-GHz 3MB 35W
P6300 - 2.26-GHz
3M
i5-480M processor
2.66-GHz 3MB 35W
Intel Pentium™
√√√√
√√√√
√√
√√
√√
√√
ENWW 1
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Discrete UMA Discrete UMA Models
150-199
DC T4300, 2.1-GHz,
800-MHz FSB, 1-MB
L2 cache
DC T4400, 2.2-GHz,
800-MHz FSB, 1-MB
L2 cache
Intel Celeron™
DC T3000, 1.8-GHz
800-MHz FSB, 1-MB
L2 cache
DC T3100, 1.9-GHz,
800-MHz FSB, 1-MB
L2 cache
Mobile 925 - 2.3-
GHz 1M L2 cache
Chipset Intel® HM55
Express
Intel® GL40 √
Southbridge: ICH9m √
√
√
√
√
√√ √
√√√√
UMA Models
100-149
Graphics Intel UMA
(integrated)/HD
Graphics with
shared video
memory (memory
size is dynamic
change):
Up to 251 MB
●
on computers
with 1024 MB
of system
memory
Up to 358 MB
●
on computers
with more than
2048 MB of
system
memory
√ √
2 Chapter 1 Product description ENWW
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Intel UMA
(integrated)/GMA
4500M - GL40
chipset with shared
video memory
(memory size is
dynamic change):
● Up to 1759 MB
for computers
with more than
4096 MB of
system
memory (64 bit)
● Up to 1309 MB
for computers
with more than
4096 MB of
system
memory (32 bit)
Up to 1309 MB
●
for computers
with more than
3072 MB of
system
memory
Discrete UMA Discrete UMA Models
150-199
√
UMA Models
100-149
Up to 797 MB
●
for computers
with more than
2048 MB
system
memory
Up to 285 MB
●
for computers
with more than
1024 MB of
system
memory
ENWW 3
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
ATi Discrete PCI
Express x 16
Graphics
● ATi Mobility
Radeon ParkLP S3 package
(ATI Mobility
Radeon™
HD5430 with
512-MB of
dedicated video
memory (64MB×16 DDR3,
4 pcs, 800MHz))
Switchable
Discrete Graphics
● ATi Robson XT
(ATI Mobility
Radeon™
HD6370) with
512MB of
dedicated
memory
(64Mx16 DDR3
800 MHz x 4
PCs)
Discrete UMA Discrete UMA Models
150-199
√
√ √
UMA Models
100-149
ATi Robson XT
●
(ATI Mobility
Radeon™
HD6370) with
1GB of
dedicated
memory
(128Mx16
DDR3 800 MHz
x 4 PCs)
Support for BD or
HD-DVD playback
with HD decoder
and DX10 support
Panel 35.6-cm (14.0-in)
HD LED BrightView
(1366 x 768)
16:9 wide aspect
ratio
Memory 2 SODIMM slots √√√√√
√√√√√
√√√√√
√√√√√
4 Chapter 1 Product description ENWW
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Customer-
accessible and
upgradable
Supports up to 8 GB
of system memory
DDR3, 1066-MHz,
dual-channel
memory (DDR3
1333 MHz can be
downgraded to
DDR3 1066 MHz)
DDR3, 800-MHz,
dual-channel
memory (DDR3
1333 MHz can be
downgraded to
DDR3 800 MHz)
Supports the
following
configurations:
● 4096 MB (2048
MB × 2)
Discrete UMA Discrete UMA Models
150-199
√√√√√
√√√√√
√√√√
√
√√√√√
UMA Models
100-149
● 3072 MB (1024
Hard drives Supports 9.5-mm,
Serial ATA √√√√√
Supports the
MB × 1 + 2048
MB × 1)
2048 MB (2048
●
MB × 1)
2048 MB (1024
●
MB × 2)
1024 MB (1024
●
MB × 1)
6.35-cm (2.5-in)
hard drive
following drives:
750 GB, 5400
●
rpm
640 GB, 5400
●
rpm
500 GB, 7200
●
rpm
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√√√√√
√√√√√
√√√√
√√√√
√√√√
ENWW 5
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Discrete UMA Discrete UMA Models
150-199
● 320 GB, 7200
● 250 GB, 7200
● 160 GB, 7200
Optical
drives
SATA √√√√√
12.7-mm (0.50-in)
Supports the
● Blu-ray ROM
rpm
rpm
rpm
Fixed (removal of
one screw required)
fixed tray load
following drives:
Blu-ray ROM
●
with
LightScribe
DVD±R/RW
SuperMulti DL
Drive
DVD±R/RW
SuperMulti DL
Drive
√√√√√
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√√√√
√√√√√
√√√√√
√√√√
√√√√
UMA Models
100-149
● DVD±R/RW
Diskette drive Supports external
Camera VGA camera √√√√√
Fixed (no tilt) √√√√√
640 × 480 by 24
Microphone One microphone,
Audio HD audio √√√√√
Supports Microsoft
DVD±R/RW
●
SuperMulti DL
Drive with
LightScribe
SuperMulti DL
Drive
USB drive only
frames per second
analog
Premium
requirements
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6 Chapter 1 Product description ENWW
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Altec Lansing
Modem
(select models
only)
Ethernet Integrated 10/100
Wireless Integrated wireless
Intel Centrino
Intel Centrino
speakers
Support for optional
high-speed 56k
modem
network interface
card (NIC)
local area network
(WLAN) options by
way of wireless
module:
Wireless-N 1000
802.11b/g 1x2
Wireless-N 1000
802.11b/g 1x2 plus
Broadcom 2070
Bluetooth 2.1+EDR
Adapter
Discrete UMA Discrete UMA Models
150-199
√√√√√
√√√√√
√√√√√
√√√√
√√√√
UMA Models
100-149
Atheros AR9285
802.11b/g/n 1x1
WiFi Adapter
Atheros AR9285
802.11b/g/n 1x1
WiFi Adapter plus
Broadcom 2070
Bluetooth 2.1+EDR
Adapter
Broadcom 4312G
802.11b/g WiFi
Adapter
Broadcom 4312G
802.11b/g WiFi
Adapter plus
Broadcom 2070
Bluetooth 2.1+EDR
Adapter
Realtek RTL8191SE
802.11b/g/n 1x1
WiFi Adapter
√√√√√
√√√√√
√
√
√√√√√
ENWW 7
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Realtek RTL8191SE
External
media card
(select models
only )
Single port
Supports mini
Ports VGA (Dsub 15-pin)
802.11b/g/n 1x1
WiFi Adapter plus
Broadcom 2070
Bluetooth 2.1+EDR
Adapter
5-in-1 Digital Media
Slot; supports SD,
MMC, MS, Mspro,
xD
configured as either
HDMI or 5-in-1
Digital Media Slot
versions of SD,
MMC, and MS Duo
with adapter
(adapter not
included)
supporting 1600 x
1200 resolution at
75 Hz; disabled
when connected to
devices through
Expansion port 3
Discrete UMA Discrete UMA Models
150-199
√√√√√
√√√√√
√√√√
√√√√√
√√√√√
UMA Models
100-149
Hot plug/unplug and
auto detect for wideaspect or standardaspect video
HDMI v1.3
supporting 1080p
with HDCP key
Single port
configured for either
HDMI or 5-in-1 card
reader
USB 2.0 (3) √√√√√
RJ-11 (modem) with
modem option
RJ-45 (Ethernet,
with link and activity
lights)
Audio-in (mono
microphone)
Audio-out (stereo
headphone)
√√√√√
√√√√√
√√√√√
√√√√√
√√√√√
√√√√√
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8 Chapter 1 Product description ENWW
Category Description HP G42 HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
Discrete UMA Discrete UMA Models
150-199
Smart-pin AC
Keyboard/
pointing
devices
TouchPad with 2
Power
requirements
65-W AC adapter
90-W AC adapter
Security Security cable slot √√√√√
Operating
system
adapter plug
14.0-inch keyboard √√√√√
buttons and 2-way
scroll (taps enabled
as default)
6-cell (47-Wh) 2.20Ah Li-ion battery
with Smart-Pin DC
connector
with Smart-Pin DC
connector
Preinstalled:
√√√√√
√√√√√
√√√√√
√√ √√
√
UMA Models
100-149
Windows 7
Professional (32 &
64 bit)
Windows 7 Home
Premium (32 & 64
bit)
Windows 7 Home
Basic (32 & 64 bit)
Free DOS √√√√√
Serviceability End-user
replaceable parts:
AC adapter √√√√√
Battery (system) √√√√√
Hard drive √√√√√
Memory module √√√√√
Optical drive √√√√√
Mini-card device √√√√√
√√√√
√√√√√
√√√√√
ENWW 9
10 Chapter 1 Product description ENWW
2 External component identification
Identifying the hardware
Components included with the computer may vary by region and model. The illustrations in this
chapter identify the standard features on most computer models.
To see a list of hardware installed in the computer, follow these steps:
1. Select Start > My Computer.
2. In the left pane of the System Tasks window, select View system information.
3. Select Hardware tab > Device Manager.
You can also add hardware or modify computer configurations using Device Manager.
ENWW Identifying the hardware 11
Top components
TouchPad
Component Description
(1)
(2) TouchPad zone Moves the pointer and selects or activates items on the
(3) Left TouchPad button Functions like the left button on an external mouse.
(4) Right TouchPad button Functions like the right button on an external mouse.
TouchPad off indicator To switch the TouchPad zone on and off, quickly double-tap
the TouchPad off indicator.
NOTE: When the TouchPad zone is active, the light is off.
screen.
There is an unmarked scroll zone inside the right edge of the TouchPad. To scroll up and down using
the TouchPad vertical scroll zone, slide your finger up or down inside the right edge of the TouchPad.
For more information about TouchPad features, refer to” Using the TouchPad” section later in this
guide.
12 Chapter 2 External component identification ENWW
Lights
Component Description
(1) TouchPad light
(2) Caps lock light On: Caps lock is on.
(3)
(4)
Power light
Wireless light
On: The TouchPad is disabled.
●
● Off: The TouchPad is enabled.
On: The computer is on.
●
● Blinking: The computer is in the Sleep state.
● Off: The computer is off or in Hibernation.
White: An integrated wireless device, such as a
●
wireless local area network (WLAN) device and/or a
Bluetooth® device, is on.
Amber: All wireless devices are off.
●
ENWW Top components 13
Button and speakers
Component Description
(1) Speakers (2) Produce sound.
(2) 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 Sleep.
When the computer is in the Sleep state, briefly press
●
the button to exit Sleep.
When the computer is in Hibernation, briefly press the
●
button to exit Hibernation.
If the computer has stopped responding and Windows®
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, select Start >
Control Panel > System and Security > Power Options.
14 Chapter 2 External component identification ENWW
Keys
Component Description
(1) esc key Displays system information when pressed in combination with
(2) fn key Displays system information when pressed in combination with
(3)
(4)
(5) Navigation keys Navigate using the Up, Down, Left and Right arrow keys.
(6) Action keys Execute frequently used system actions.
Windows logo key Displays the Windows Start menu.
Windows applications key Displays a shortcut menu for items beneath the pointer.
the fn key.
the esc key.
ENWW Top components 15
Display
Component Description
(1) Internal microphone Records sound.
(2) Integrated webcam (select models only) Records audio and video and captures still photographs.
(3) Integrated webcam light (select models only) On: The integrated webcam is in use.
16 Chapter 2 External component identification ENWW
Right-side components
Component Description
(1) Optical drive Reads and writes to optical discs.
(2) Optical drive light Blinking: The optical drive is being accessed.
(3)
(4) RJ-11 (modem) jack (select models only) Connects a modem cable.
(5) AC adapter/power/battery light
(6)
(7)
USB port Connects an optional USB device.
White: The computer is connected to external power and
●
the battery is fully charged.
● Blinking white: The computer is in the Sleep state.
Amber: A battery is charging.
●
Power connector Connects an AC adapter.
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.
ENWW Right-side components 17
Left-side components
Component Description
(1)
(2) Vent Enables airflow to cool internal components.
(3) HDMI port (select models only) Connects an optional video or audio device, such as a high-
(4)
(5)
(6)
(7)
(8) Digital Media Slot (select models only) Supports the following optional digital card formats:
External monitor port Connects an external VGA monitor or projector.
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.
definition television, or any compatible digital or audio
component.
RJ-45 (network) jack Connects a network cable.
USB ports (2) Connects optional USB devices.
Audio-in (microphone) jack Connects an optional computer headset microphone, stereo
array microphone, or monaural microphone.
Audio-out (headphone) jack Produces sound when connected to optional powered stereo
speakers, headphones, earbuds, a headset, or television
audio.
Memory Stick (MS)
●
Memory Stick Pro (MSP)
●
● MultiMediaCard (MMC)
● Secure Digital (SD) Memory Card
xD-Picture Card (XD)
●
(9)
Drive light On: The hard drive is in use.
18 Chapter 2 External component identification ENWW
Bottom components
Component Description
(1) Battery bay Holds the battery.
(2)
(3) Vents (4) Enable airflow to cool internal components.
(4)
(5)
Battery release latch Releases the battery from the battery bay.
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.
Memory module compartment Contains 2 memory module slots and, on select models,
the wireless LAN (WLAN) device.
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 technical support through
Help and Support.
Hard drive bay Holds the hard drive.
ENWW Bottom components 19
Wireless antennas
At least 2 antennas send and receive signals from one or more wireless devices. These antennas are
not visible from the outside of the computer.
NOTE: For optimal transmission, keep the areas immediately around the antennas free from
obstructions.
To see wireless regulatory notices, refer to the section of the Regulatory, Safety and Environmental
Notices that applies to your country or region. These notices are located in Help and Support.
20 Chapter 2 External component identification ENWW
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