Compaq PRESARIO CQ42 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: April 2010
Document Part Number: 594158-002
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).
iii
iv Safety warning notice
MSG revision history
Revision Publication date Description
A April 2010 Edited this guide to include HP G42 Notebook PC and Compaq CQ42
Notebook PC information only.
B October 2010
Added newly supported memory modules to spare parts listings in
●
the following locations:
Mass storage devices on page 29, Sequential part number listing
on page 31, Memory module on page 51.
Added newly supported processors to spare parts listings in the
●
following locations:
Mass storage devices on page 29, Sequential part number listing
on page 31, Processor on page 83.
Added newly supported system boards to spare parts listings in the
●
following locations:
Mass storage devices on page 29, Sequential part number listing
on page 31, System board on page 73.
Computer major components on page 20,
Computer major components on page 20,
Computer major components on page 20,
v
vi MSG revision history
Table of contents
1 Product description ........................................................................................................................................ 1
2 External component identification ................................................................................................................ 8
Identifying the hardware ....................................................................................................................... 8
Top components ................................................................................................................................... 9
TouchPad ............................................................................................................................ 9
Lights ................................................................................................................................. 10
Button and speakers .......................................................................................................... 11
Keys ................................................................................................................................... 12
Display ............................................................................................................................... 13
Right-side components ....................................................................................................................... 14
Left-side components ......................................................................................................................... 15
Bottom components ........................................................................................................................... 16
Wireless antennas .............................................................................................................................. 17
Additional hardware components ....................................................................................................... 18
3 Illustrated parts catalog ............................................................................................................................... 19
Serial number location ........................................................................................................................ 19
Computer major components ............................................................................................................. 20
Display assembly components ........................................................................................................... 26
Plastics Kit .......................................................................................................................................... 28
Mass storage devices ......................................................................................................................... 29
Miscellaneous parts ............................................................................................................................ 30
Sequential part number listing ............................................................................................................ 31
4 Removal and replacement procedures ....................................................................................................... 36
Preliminary replacement requirements ............................................................................................... 36
Tools required .................................................................................................................... 36
Service considerations ....................................................................................................... 36
Plastic parts ....................................................................................................... 36
Cables and connectors ..................................................................................... 37
Drive handling ................................................................................................... 37
Grounding guidelines ......................................................................................................... 38
vii
Electrostatic discharge damage ........................................................................ 38
Packaging and transporting guidelines ............................................. 39
Workstation guidelines ..................................................................... 39
Equipment guidelines ....................................................................... 40
Component replacement procedures ................................................................................................. 41
Serial number .................................................................................................................... 41
Computer feet .................................................................................................................... 42
Battery ............................................................................................................................... 43
Hard drive .......................................................................................................................... 44
Optical drive ....................................................................................................................... 47
WLAN module .................................................................................................................... 49
Memory module ................................................................................................................. 51
Keyboard ........................................................................................................................... 53
Top cover ........................................................................................................................... 55
Speaker assembly ............................................................................................................. 58
Power button board ........................................................................................................... 59
TouchPad button board ..................................................................................................... 60
Modem module .................................................................................................................. 61
Bluetooth module ............................................................................................................... 63
USB board ......................................................................................................................... 64
Power connector cable ...................................................................................................... 65
Display assembly ............................................................................................................... 66
System board ..................................................................................................................... 73
Optical drive SATA cable and connector ........................................................................... 76
RTC battery ....................................................................................................................... 78
Fan/heat sink assembly ..................................................................................................... 80
Processor ........................................................................................................................... 83
5 Setup Utility ................................................................................................................................................... 85
Computer Setup in Windows 7 ........................................................................................................... 85
Starting Setup Utility .......................................................................................................... 85
Using Setup Utility ............................................................................................................. 85
Changing the language of Setup Utility ............................................................. 85
Navigating and selecting in Setup Utility ........................................................... 86
Displaying system information .......................................................................... 86
Restoring default settings in Setup Utility .......................................................... 87
Exiting Setup Utility ........................................................................................... 88
Setup Utility menus ............................................................................................................ 88
Main menu ........................................................................................................ 88
Security menu ................................................................................................... 88
System Configuration menu .............................................................................. 89
Diagnostics menu .............................................................................................. 89
Computer Setup in Linux .................................................................................................................... 90
viii
Starting Computer Setup ................................................................................................... 90
Using Computer Setup ...................................................................................................... 90
Navigating and selecting in Computer Setup .................................................... 90
Restoring factory settings in Computer Setup ................................................... 91
Computer Setup menus ..................................................................................................... 92
File menu .......................................................................................................... 92
Security menu ................................................................................................... 93
Diagnostics menu .............................................................................................. 93
System Configuration menu .............................................................................. 94
6 Specifications ................................................................................................................................................ 96
Computer specifications ..................................................................................................................... 96
35.6-cm (14.0-in) display specifications ............................................................................................. 97
Hard drive specifications .................................................................................................................... 98
DVD±RW SuperMulti Double-Layer Drive with LightScribe specifications ......................................... 99
Blu-ray ROM with LightScribe DVD±R/RW SuperMulti DL Drive specifications .............................. 100
System resource specifications ........................................................................................................ 101
7 Backup and recovery .................................................................................................................................. 102
Windows 7 ........................................................................................................................................ 102
Creating recovery discs ................................................................................................... 103
Backing up your information ............................................................................................ 104
Using Windows Backup and Restore .............................................................. 105
Using system restore points ............................................................................ 106
When to create restore points ........................................................ 106
Create a system restore point ........................................................ 106
Restore to a previous date and time ............................................... 106
Performing a recovery ..................................................................................................... 106
Recovering from the recovery discs ................................................................ 107
Recovering from the dedicated recovery partition (select models only) .......... 107
Linux backup and recovery .............................................................................................................. 108
8 Connector pin assignments ....................................................................................................................... 109
Audio-out (headphone) ..................................................................................................................... 109
Audio-in (microphone) ...................................................................................................................... 109
External monitor ............................................................................................................................... 110
RJ-11 (modem) ................................................................................................................................ 111
RJ-45 (network) ................................................................................................................................ 111
HDMI ................................................................................................................................................ 112
Universal Serial Bus ......................................................................................................................... 113
9 Power cord set requirements .................................................................................................................... 114
Requirements for all countries or regions ......................................................................................... 114
ix
Requirements for specific countries or regions ................................................................................ 115
10 Recycling ................................................................................................................................................... 116
Battery .............................................................................................................................................. 116
Display .............................................................................................................................................. 116
Index ................................................................................................................................................................. 122
x
1 Product description
Category Description HP G42 Compaq
Presario
CQ42
UMA Discrete UMA Models
Product Name Compaq Presario CQ42 Notebook
PC
HP G42 Notebook PC √
Processors Intel® Arrandale™
i7-620M, 2.66-GHz, SC turbo, 4-MB
L3 cache
i5-540M, 2.53-GHz, SC turbo, 3-MB
L3 cache
i5-520M, 2.4-GHz, SC turbo, 3-MB
L3 cache
i5-430M 2.26-GHz (turbo to 2.53-
GHz) 3-MB L3 cache
i3-350M, 2.26-GHz 3-MB L3 cache √√√
i3-330M, 2.13-GHz 3-MB L3 cache √√√
Intel Pentium™
√√√
√√√
√√√
√√√
√√√
Compaq
Presario
CQ42
150 – 199
Compaq
Presario
CQ42
UMA Models
100 – 149
DC T4400, 2.2-GHz, 800-MHz FSB,
1-MB L2 cache
DC T4300, 2.1-GHz, 800-MHz FSB,
1-MB L2 cache
Intel Celeron™
DC T3100, 1.9-GHz, 800-MHz FSB,
1-MB L2 cache
DC T3000, 1.8-GHz 800-MHz FSB,
1-MB L2 cache
AMD® Phenom™ II Processor
DC N930 QC 2.0 GHz √√√
DC N830 Tri-core 2.1Ghz 1.5M L2
35W
√
√
√
√
√√√
1
Category Description HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
UMA Discrete UMA Models
150 – 199
N620 DDR3-1333 Mhz √√√
DC QC P920 1.6Ghz 2M L2 25W √√√
DC P820 Tri-Core 1.8Ghz 1.5M L2
25W
DC P820 Tri-Core 1.8Ghz 1.5M L2
25W
AMD Turion™ II Processor
DC N530 DC 2.5GHz L2 35W √√√
P520 DDR3-1066 Mh √√√
AMD Athlon™ II Processor
DC N330 2.3GHz 1M L2 35W √√√
P320 DDR3-1066 Mhz √√√
AMD Sempron™ II Processor
N120 DDR3-1066 Mhz √√√
Chipset Intel® HM55 Express √√√
Intel® GL40 √
√√√
√√√
UMA Models
100 – 149
Southbridge: ICH9m √
AMD
ATI RS880M (Northbridge) √ √
ATI RS880MD (Northbridge) √
Southbridge - SB820 √√√
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
Category Description 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
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
ATi Discrete PCI Express x 16
Graphics
UMA Discrete UMA Models
150 – 199
√
√
UMA Models
100 – 149
ATi Mobility Radeon Park-LP S3
package (ATI Mobility Radeon™
HD5430 with 512-MB of dedicated
video memory (64-MB×16 DDR3, 4
pcs, 800-MHz))
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 resolution)
16:9 wide aspect ratio √√√√
Memory 2 SODIMM slots √√√√
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:
√√√√
√√√√
√√√√
√√√
√
3
Category Description HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
UMA Discrete UMA Models
150 – 199
Hard drives Supports 9.5-mm, 6.35-cm (2.5-in)
Serial ATA √√√√
Supports the following drives:
Optical drives Fixed (removal of one screw
4096 MB (2048 MB × 2) √√√√
●
3072 MB (1024 MB × 1 + 2048
●
MB × 1)
2048 MB (2048 MB × 1) √√√√
●
2048 MB (1024 MB × 2) √√√√
●
1024 MB (1024 MB × 1) √√√√
●
hard drives
640-GB 5400 RPM √√√
●
500 GB, 7200 rpm √√√
●
320 GB, 7200 rpm √√√√
●
250 GB, 7200 rpm √√√√
●
160 GB, 7200 rpm √√√
●
required)
√√√√
√√√√
√√√√
UMA Models
100 – 149
SATA √√√√
12.7-mm (0.50-in) tray load √√√√
Supports the following drives:
Diskette drive
Camera VGA camera √√√√
Fixed (no tilt) √√√√
640 × 480 by 24 frames per second √√√√
Microphone One microphone, analog √√√√
Audio HD audio √√√√
Blu-ray ROM with LightScribe
●
DVD±R/RW SuperMulti DL
Drive
Blu-ray ROM DVD±R/RW
●
SuperMulti DL Drive
DVD±R/RW SuperMulti DL
●
Drive with LightScribe
DVD±R/RW SuperMulti DL
●
Drive
Supports external USB drive only √√√√
√√√
√√√
√√√√
√√√√
4 Chapter 1 Product description
Category Description HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
UMA Discrete UMA Models
150 – 199
Supports Microsoft Premium
requirements
Altec Lansing speakers √√√√
Modem Support for optional high-speed 56k
modem
Ethernet Integrated 10/100 network interface
card (NIC)
Wireless Integrated wireless local area
network (WLAN) options by way of
wireless module:
Intel Centrino Wireless-N 1000
802.11b/g 1x2
Intel Centrino Wireless-N 1000
802.11b/g 1x2 plus Broadcom 2070
Bluetooth 2.1+EDR Adapter
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
√√√√
√√√√
√√√√
√√√
√√√
√√√√
√√√√
UMA Models
100 – 149
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
Realtek RTL8191SE 802.11b/g/n 1x1
WiFi Adapter plus Broadcom 2070
Bluetooth 2.1+EDR Adapter
External media
card
Single port configured as either
Supports mini versions of SD, MMC,
Ports VGA (Dsub 15-pin) supporting 1600
Hot plug/unplug and auto detect for
5-in-1 Digital Media Slot; supports
SD, MMC, MS, Mspro, xD
HDMI or 5-in-1 Digital Media Slot
and MS Duo with adapter (adapter
not included)
x 1200 resolution at 75 Hz; disabled
when connected to devices through
Expansion port 3
wide-aspect or standard-aspect video
√
√
√√√√
√√√√
√√√√
√√√
√√√√
√√√√
√√√√
5
Category Description HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
UMA Discrete UMA Models
150 – 199
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) √√√√
Smart-pin AC adapter plug √√√√
Keyboard/
pointing devices
TouchPad with 2 buttons and 2-way
Power
requirements
14.0-inch keyboard √√√
scroll (taps enabled as default)
6-cell (47-Wh) 2.20-Ah Li-ion battery √√√√
√√√√
√√√
√√√√
√√√
UMA Models
100 – 149
65-W AC adapter with Smart-Pin DC
connector
90-W AC adapter with Smart-Pin DC
connector
Security Security cable slot √√√√
Operating system Preinstalled:
Windows 7 Professional (32 & 64 bit) √√√
Windows 7 Home Premium (32 & 64
bit)
Windows 7 Home Basic (32 & 64 bit) √√
Windows 7 Starter (32 bit) √√
Free DOS √√√
Novell Linux √√
Serviceability End-user replaceable parts:
AC adapter √√√√
Battery (system) √√√√
Hard drive √√√√
Memory module √√√√
√ √√
√
√√√
6 Chapter 1 Product description
Category Description HP G42 Compaq
Presario
CQ42
Compaq
Presario
CQ42
Compaq
Presario
CQ42
UMA Discrete UMA Models
150 – 199
Optical drive √√√√
Mini-card device √√√√
UMA Models
100 – 149
7
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.
8 Chapter 2 External component identification
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.
Top components 9
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.
●
10 Chapter 2 External component identification
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.
Top components 11
Keys
Component Description
(1) esc key Displays system information when pressed in combination with
the fn key.
(2) fn key Displays system information when pressed in combination with
the esc key.
(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.
12 Chapter 2 External component identification
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.
Top components 13
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.
14 Chapter 2 External component identification
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
Audio-out (headphone) jack Produces sound when connected to optional powered stereo
array microphone, or monaural microphone.
speakers, headphones, earbuds, a headset, or television
audio.
Memory Stick (MS)
●
Memory Stick Pro (MSP)
●
(9)
MultiMediaCard (MMC)
●
Secure Digital (SD) Memory Card
●
xD-Picture Card (XD)
●
Drive light On: The hard drive is in use.
Left-side components 15
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.
16 Chapter 2 External component identification
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.
Wireless antennas 17
Additional hardware components
Component Description
(1) Power cord* Connects an AC adapter to an AC outlet.
(2) AC adapter Converts AC power to DC power.
(3) Battery* Powers the computer when the computer is not plugged into
external power.
*Power cords vary in appearance by country or region.
WARNING! Connecting the internal analog modem to a digital line can permanently damage the
modem. Immediately disconnect the modem cable if you accidentally connect it to a digital line.
NOTE: Telephone jacks vary by country or region. To use the modem and the modem cable
(included with select models only) outside the country or region in which you purchased the
computer, you must obtain a country- or region-specific modem cable adapter (included with select
models or purchased separately). The modem must be connected to an analog telephone line using a
6-pin, RJ-11 modem cable (included with select models only). Jacks for digital PBX systems may
resemble analog telephone jacks, but they are not compatible with the modem.
If the modem cable contains noise suppression circuitry, which prevents interference from TV and
radio reception, orient the circuitry end of the cable toward the computer.
18 Chapter 2 External component identification
3 Illustrated parts catalog
Serial number location
When ordering parts or requesting information, provide the computer serial number and model
number located in the battery bay of the computer.
Serial number location 19
Computer major components
Item Description Spare part number
(1) 35.6 cm (14-in), WXGA, BrightView display assembly
NOTE: See
internal component spare part information.
For use with integrated microphone and webcam; Presario, matte black 592146-001
●
Display assembly components on page 26 for more display assembly
20 Chapter 3 Illustrated parts catalog
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