Bluetooth is a trademark owned by its
proprietor and used by Hewlett-Packard
Company under license. Intel, Core, and
Pentium are trademarks of Intel Corporation
in the U.S. and other countries. Microsoft,
Windows, and Windows Vista 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 2009
Document Part Number: 519816-001
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
Table of contents
1 Product description
2 External component identification
Top components ................................................................................................................................... 4
Service tag ......................................................................................................................................... 15
Computer major components ............................................................................................................. 16
Index ................................................................................................................................................................. 138
viii
1Product description
CategoryDescription
Product NameCompaq Presario CQ40 Notebook PC
ProcessorsIntel® Core™2 Duo mobile processors
T9550 2.66 GHz, 6-MB L2 cache, 1066-MHz front-side bus (FSB)
P8700 2.53 GHz, 3-MB L2 cache, 1066-MHz FSB
P8600 2.4 GHz, 3-MB L2 cache, 1066-MHz FSB
P8400 2.26 GHz, 3-MB L2 cache, 1066-MHz FSB
P7450 2.13 GHz, 3-MB L2 cache, 1066-MHz FSB
T5800 2.0 GHz, 2-MB L2 cache, 800-MHz FSB
T6400 2.0 GHz, 2-MB L2 cache, 800-MHz FSB
T6600 2.2 GHz, 2-MB L2 cache, 800-MHz FSB
Intel Pentium® processor for mobile
T3400 2.16 GHz, 1-MB L2 cache, 800-MHz FSB
T4200 2.0 GHz, 1-MB L2 cache, 800-MHz FSB
ChipsetNorthbridge: Intel PM45
Southbridge: Intel ICH9M
GraphicsDiscrete graphics
nVIDIA N1OM-GE2-S with 512 MB of dedicated video memory
TouchPad with 2 buttons and 2-way scroll (taps enabled by default)
Power requirements6-cell Li-Ion battery (2.2-Ah, 47-Wh)
90-W AC adapter with localized cable support (Smart-Pin DC connector)
SecuritySecurity cable slot
Operating systemPreinstalled:
Windows Vista Home Basic (32 bit)
Windows Vista Home Premium (32 bit)
Windows Vista Business (32 bit)
FreeDOS
ServiceabilityEnd-user replaceable parts:
AC adapter
Battery (system)
Memory module
Optical drive
Mini Card
3
2External component identification
Top components
TouchPad
ComponentDescription
(1)TouchPad on/off buttonEnables/disables the TouchPad.
(2)TouchPad*Moves the pointer and selects or activates items on the screen.
(3)Left TouchPad button*Functions like the left button on an external mouse.
(4)TouchPad light
(5)TouchPad scroll zone*Scrolls up or down.
(6)Right TouchPad button*Functions like the right button on an external mouse.
*This table describes factory settings. To view or change pointing device preferences, select Start > Control Panel > Hardware
and Sound > Mouse.
4Chapter 2 External component identification
White: TouchPad is enabled.
●
Amber: TouchPad is disabled.
●
Lights
ComponentDescription
(1)Caps lock lightOn: Caps lock is on.
(2)Power lights (2)*
(3)Wireless light
(4)Num lock lightOn: Num lock is on or the embedded numeric keypad is enabled.
(5)Battery light
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off or in Hibernation.
●
Blue: 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.
●
On: A battery is charging.
●
Blinking: A battery that is the only available power source has
●
reached a low battery level or a critical battery level.
Off: If the computer is plugged into an external power source,
●
the light is turned off when all batteries in the computer are
fully charged. If the computer is not plugged into an external
power source, the light stays off until the battery reaches a
low battery level.
Top components5
ComponentDescription
(6)Drive light
*The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The
power light on the front of the computer is visible whether the computer is open or closed.
Blinking: The hard drive or optical drive is being accessed.
●
On: HP ProtectSmart Hard Drive Protection has temporarily
●
parked the internal hard drive.
6Chapter 2 External component identification
Buttons and speakers
ComponentDescription
(1)Speakers (2)Produce sound.
(2)Power button*
(3)Wireless buttonTurns the wireless feature on or off but does not establish a
*This table describes factory settings. For information about changing factory settings, refer to the user guides located in Help
and Support.
When the computer is off, press the button to turn on the
●
computer.
When the computer is on, briefly press the button 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 Maintenance > Power Options.
wireless connection.
NOTE: A wireless network must be set up in order to establish a
wireless connection.
Top components7
Keys
NOTE:Your computer may look slightly different from the illustration in this section.
ComponentDescription
(1)esc keyDisplays system information when pressed in combination with
the fn key.
(2)fn keyExecutes frequently used system functions when pressed in
(3)Windows logo keyDisplays the Windows Start menu.
(4)Function keysExecute frequently used system functions when pressed in
(5)Embedded numeric keypad keysCan be used like the keys on an external numeric keypad.
(6)Windows applications keyDisplays a shortcut menu for items beneath the pointer.
(7)Navigation keys (home, pg up, pg down)Execute volume mute, volume up, or volume down when pressed
combination with a function key or the esc key.
combination with the fn key.
in combination with the fn key.
8Chapter 2 External component identification
Display
NOTE:Your computer may look slightly different from the illustration in this section.
ComponentDescription
(1)Integrated webcam lightOn: The integrated webcam is in use.
(2)Integrated webcamRecords video and captures still photographs.
(3)Internal microphoneRecords sound.
NOTE: If there is a microphone icon next to each microphone
opening, your computer has internal microphones.
(4)Internal display switchTurns off the display if the display is closed while the computer is
turned on.
Top components9
Wireless antennas
On select computer models, at least 2 antennas send and receive signals from one or more wireless
devices.
NOTE: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, refer to the section of the Regulatory, Safety and EnvironmentalNotices that applies to your country or region. These notices are located in Help and Support.
10Chapter 2 External component identification
Front components
NOTE:Your computer may look slightly different from the illustration in this section.
ComponentDescription
(1)Power light
(2)Battery light
(3)Drive light
(4)Audio-in (microphone) jackConnects an optional computer headset microphone, stereo array
(5)Audio-out (headphone) jackProduces sound when connected to optional powered stereo
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off or in Hibernation.
●
On: A battery is charging.
●
Blinking: A battery that is the only available power source has
●
reached a low battery level or a critical battery level.
Off: If the computer is plugged into an external power source,
●
the light is turned off when all batteries in the computer are
fully charged. If the computer is not plugged into an external
power source, the light stays off until the battery reaches a low
battery level.
Blinking: The hard drive or optical drive is being accessed.
●
On: HP ProtectSmart Hard Drive Protection has temporarily
●
parked the internal hard drive.
microphone, or monaural microphone.
speakers, headphones, ear buds, a headset, or television audio.
Front components11
Left-side components
NOTE:Your computer may look slightly different from the illustration in this section.
ComponentDescription
(1)Security cable slotAttaches an optional security cable to the computer.
(2)External monitor portConnects an external VGA monitor or projector.
(3)RJ-45 (network) jackConnects a network cable.
(4)HDMI portConnects an optional video or audio device, such as a high-
NOTE: The security cable is designed to act as a deterrent, but
it may not prevent the computer from being mishandled or stolen.
definition television, or any compatible digital or audio component.
(5)USB portConnects an optional USB device.
(6)Digital Media Slot lightOn: A digital card is being accessed.
(7)Digital Media SlotSupports the following optional digital card formats:
Memory Stick (MS)
●
Memory Stick Pro (MSP)
●
MultiMedia Card (MMC)
●
Secure Digital (SD) Memory Card
●
xD-Picture Card (XD)
●
12Chapter 2 External component identification
Rear component
ComponentDescription
VentEnables airflow to cool internal components.
Right-side components
NOTE:Your computer may look slightly different from the illustration in this section.
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.
ComponentDescription
(1)Optical drive lightBlinking: The optical drive is being accessed.
(2)Optical driveReads optical discs and, on select models, also writes to optical
discs.
(3)USB ports (2)Connect optional USB devices.
(4)RJ-11 (modem) jack (select models only)Connects a modem cable.
(5)Power connectorConnects an AC adapter.
Rear component13
Bottom components
ComponentDescription
(1)Battery bayHolds the battery.
(2)Battery release latchReleases the battery from the battery bay.
(3)RTC battery compartmentHolds the RTC battery.
(4)Memory module compartmentContains the 2 memory module slots.
(5)Hard drive and WLAN module compartmentHolds the hard drive and 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.
(6)Vents (3)Enable airflow to cool internal components.
NOTE: The computer fan starts up automatically to cool internal
components and prevent overheating. It is normal for the internal
fan to cycle on and off during routine operation.
14Chapter 2 External component identification
3Illustrated part numbers catalog
Service tag
When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag.
(1) Product name: This is the product name affixed to the front of the device.
(2) Serial number (s/n): This is an alphanumeric identifier that is unique to each product.
(3) Part number/Product number (p/n): This number provides specific information about the product's
hardware components. The part number helps a service technician to determine what components and
parts are needed.
(4) Model description: This is the alphanumeric identifier used to locate documents, drivers, and support
for the device.
(5) Warranty period: This number describes the duration of the warranty period for the device.
Service tag15
Computer major components
16Chapter 3 Illustrated part numbers catalog
ItemDescriptionSpare part number
(1)14.1-in, WXGA BrightView display assembly
NOTE: See
internal component spare part information.
(2)Keyboard cover (includes power button board and cable)487299-001
Power button board (not illustrated)492249-001
(3)Keyboard
Taiwan486904-AB1
Thailand486904-281
The United States486904-001
(4)Top cover487300-001
(5)USB board486842-001
USB board cable (not illustrated)486843-001
(6)TouchPad494960-001
(7)Power connector cable (includes power connector and cable)486864-001
(8)TouchPad bracket494962-001
(9)TouchPad button board494965-001
South Korea486904-AD1
Display assembly componentson page 20 for more display assembly
487281-001
(10)Audio board (includes audio connectors and audio board cable)487344-001
Audio board cable (not illustrated)486841-001
(11)Modem module (select models only)
For use in all countries and regions except Australia and New Zealand461749-001
For use in Australia and New Zealand461749-011
Modem module cable (includes RJ-11 connector, not illustrated)494981-001
Plastics Kit486862-001
(12a)Real time clock (RTC) battery compartment cover