HP ProBook 6545b Notebook PC,
HP ProBook 6540b Notebook PC,
HP ProBook 6445b Notebook PC, and
HP ProBook 6440b Notebook PC
Maintenance and Service Guide
Document Part Number: 570786-003
October 2011
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.
AMD Athlon, AMD Sempron, and AMD Turion are trademarks of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its
proprietor and used by Hewlett-Packard Company under license. Intel and Core are U.S. registered trademarks of Intel Corporation.
Java is a U.S. trademark of Sun Microsystems, Inc. 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.
Third Edition: October 2011
Document Part Number: 570786-003
Safety warning notice
WARNING: To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly
Å
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).
RJ-45 (Ethernet, includes link and
activity lights)
Serial
Stereo headphone
Stereo microphone
USB v. 2.0
Full-sized keyboard with
spill-resistant design and drains
Supports dual-point (pointing stick and
TouchPad) and TouchPad-only
configurations
Numeric keypad
Supports 2-way scroll with legend
Taps enabled as default
90-W PFC HP Smart Adapter
Supports multi-pin AC connector and
3-wire plug (with ground pin)
Supports 9-cell Lithium Ion (Li Ion)
battery (93 WH) and 6-cell Li Ion
battery (55 WH)
Supports 8-cell Extended Life Battery
Supports 12-cell Ultra Capacity Battery
Supports HP Fast Charge Technology
Trusted platform module (TPM) 1.2
and TPM enhanced drive lock
Optional HP fingerprint reader
Optional active integrated Smart Card
Reader (SCM)
Full volume encryption
Preboot authentication (password and
smart card)
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Notebook PC
HP ProBook 6440b
Notebook PC
(Continued)
Maintenance and Service Guide1–5
Product description
CategoryDescription
Operating
system
Preinstalled without Microsoft®
Office:
■ Windows® 7 Home Premium 64
■ Windows 7 Home Premium 32
■ Windows 7 Pro 64
■ Windows 7 Pro 32
■ Windows Vista® Business 32
■ Windows Vista Home Basic 32
■ Windows XP Pro 32 with Windows
7 Pro downgrade
■ Free DOS
Preinstalled with Microsoft Office:
■ Windows 7 Home Basic 32
■ Windows 7 Home Premium 64
■ Windows 7 Home Premium 32
■ Windows 7 Pro 64
■ Windows 7 Pro 32
■ Windows Vista Home Basic 32
■ Windows Vista Business 32
■ Windows XP Pro 32 with Windows
7 Pro downgrade
Restore Media (OSDVD):
■ Windows 7 Home Basic 32
■ Windows 7 Home Premium 64
■ Windows 7 Home Premium 32
■ Windows 7 Pro 64
■ Windows 7 Pro 32
■ Windows Vista Business 32
■ Windows Vista Home Basic 32
■ Windows XP Pro 32 with Windows
7 Pro license
Restore media (DRDVD):
■ Windows 7 DRDVD with Windows
DVD
■ Windows 7 DRDVD without
Windows DVD
■ Windows Vista DRDVD
■ Windows XP DRDVD
Office restore media: Microsoft Office
ready restore DVD
Certified:
■ SuSE Linux
■ Microsoft Logo (Windows 7 and
Windows Vista Premium)
Web-only support:
■ Windows 7 Enterprise 64
■ Windows 7 Enterprise 32
■ Windows 7 Ultimate 64
■ Windows 7 Ultimate 32
■ Windows Vista Enterprise 32
■ Windows Vista Enterprise 64
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Notebook PC
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Notebook PC
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Notebook PC
HP ProBook 6440b
Notebook PC
(Continued)
1–6Maintenance and Service Guide
Product description
CategoryDescription
ServiceabilityEnd-user replaceable parts:
AC adapter
Battery (system)
Bluetooth module
Hard drive
Memory module
Optical drive
SIM
Solid-state drive
WLAN module
WWAN module
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Notebook PC
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Maintenance and Service Guide1–7
Product description
1–8Maintenance and Service Guide
Identifying 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:
For Windows 7 and Windows Vista:
1. Select Start > Computer > System Properties.
2. In the left pane, click Device Manager.
You can also add hardware or modify device configurations using Device Manager.
Windows includes the User Account Control feature to improve the security of your computer. You may be
✎
prompted for your permission or password for tasks such as installing applications, running utilities, or changing
Windows settings. Refer to Help and Support for more information.
2
External component identification
For Windows XP:
1. Select Start > My Computer.
2. In the left pane of the System Tasks window, click View system information.
3. Select Hardware tab > Device Manager.
You can also add hardware or modify device configurations using Device Manager.
Maintenance and Service Guide2–1
External component identification
Top components
Display components
Your computer may look slightly different from the illustration in this section.
✎
ItemComponentDescription
(1)WWAN antennas (2)*Send and receive wireless signals to communicate with wireless wide-area
networks (WWAN).
(2)Internal microphones (1 or 2, varying
by computer model)†
(3)WLAN antennas (2)*Send and receive wireless signals to communicate with wireless local area
(4)Webcam light (select models only)On: The webcam is in use.
(5)Webcam (select models only)Records audio and video and captures still photographs.
(6)Internal display switchTurns off the display or initiates the Sleep state (Windows 7 and
*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately around
the antennas free from obstructions.
†Only computers equipped with a webcam are equipped with 2 microphones. Computers not equipped with a webcam are
equipped with only one microphone.
Record sound.
If there is a microphone icon next to each microphone opening,
✎
your computer has internal microphones.
networks (WLAN).
Windows Vista) or Standby (Windows XP) if the display is closed while the
power is on.
2–2Maintenance and Service Guide
Keys
✎
External component identification
Refer to the illustration that most closely matches your computer.
ItemComponentDescription
(1)
(2)
(3)Windows logo keyDisplays the Windows Start menu.
(4)Windows applications keyDisplays a shortcut menu for items beneath the pointer.
(5)Integrated numeric keypad keysCan be used like the keys on an external numeric keypad.
(6)Function keysExecute frequently used system functions when pressed in combination with
esc keyDisplays system information when pressed in combination with the fn key.
fn keyExecutes frequently used system functions when pressed in combination with
a function key or the
fn key.
the
esc key.
Maintenance and Service Guide2–3
External component identification
ItemComponentDescription
(1)
(2)
(3)Windows logo keyDisplays the Windows Start menu.
(4)Windows applications keyDisplays a shortcut menu for items beneath the pointer.
(5)Embedded numeric keypad keysCan be used like the keys on an external numeric keypad.
(6)Function keysExecute frequently used system functions when pressed in combination with
esc keyDisplays system information when pressed in combination with the fn key.
fn keyExecutes frequently used system functions when pressed in combination with
a function key or the
fn key.
the
esc key.
2–4Maintenance and Service Guide
Pointing devices
External component identification
ItemComponentDescription
(1)Pointing stick (select models only)*Moves the pointer and selects or activates items on the screen.
(2)Left pointing stick button (select
models only)*
(3)TouchPad*Moves the pointer and selects or activates items on the screen.
(4)Left TouchPad button*Functions like the left button on an external mouse.
(5)Right pointing stick button*Functions like the right button on an external mouse.
(6)TouchPad scroll zoneScrolls up or down.
(7)Right TouchPad button*Functions like the right button on an external mouse.
*This table describes factory settings. To view or change pointing device preferences:
■ In Windows 7 and Windows Vista: Select Start > Control Panel > Hardware and Sound > Mouse.
■ In Windows XP: Select Start > Control Panel > Printers and Other Hardware > Mouse.
Functions like the left button on an external mouse.
Maintenance and Service Guide2–5
External component identification
Buttons and fingerprint reader
Refer to the illustration that most closely matches your computer.
✎
ItemComponentDescription
(1)Power button■ When the computer is off, press the button to turn on the computer.
■ When the computer is on, press the button to shut down the computer.
■ When the computer is in the Sleep state (Windows 7 and Windows Vista)
or Standby (Windows XP), press the button briefly to exit Sleep or Standby.
■ When the computer is in Hibernation, press the button briefly 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 one of the following:
■ In Windows 7 and Windows Vista: select Start > Control Panel > System
and Maintenance > Power Options.
■ In Windows XP: select Start > Control Panel > Performance and
Maintenance > Power Options.
(2)QuickLook button■ When the computer is off, press the button to open HP QuickLook.
■ When the computer is on, press the button to open Software Setup.
If Software Setup is not available, the default Web browser opens.
✎
(3)QuickWeb button■ When the computer is off, press the button to open HP QuickWeb.
■ When the computer is on, press the button to open the default
Web browser.
(4)Wireless buttonTurns the wireless feature on or off but does not establish a
wireless connection.
(5)Volume mute buttonMutes and restores speaker sound.
(Continued)
2–6Maintenance and Service Guide
External component identification
ItemComponentDescription
Buttons and fingerprint reader (continued)
(6)Volume down buttonDecreases computer volume.
(7)Volume up buttonIncreases computer volume.
(8)Calculator button (select models only) Opens the Windows calculator feature.
(9)Fingerprint readerAllows a fingerprint logon to Windows, instead of a password logon.
ItemComponentDescription
(1)Power bu tton■ When the computer is off, press the button to turn on the computer.
■ When the computer is on, press the button to shut down the computer.
■ When the computer is in the Sleep state (Windows 7 and Windows Vista)
or Standby (Windows XP), press the button briefly to exit Sleep or Standby.
■ When the computer is in Hibernation, press the button briefly 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 one of the following:
■ In Windows 7 and Windows Vista: Select Start > Control Panel > System
and Maintenance > Power Options.
■ In Windows XP: Select Start > Control Panel > Performance and
Maintenance > Power Options.
(2)QuickLook button■ When the computer is off, press the button to open HP QuickLook.
■ When the computer is on, press the button to open Software Setup.
If Software Setup is not available, the default Web browser opens.
✎
(Continued)
Maintenance and Service Guide2–7
External component identification
ItemComponentDescription
Buttons and fingerprint reader (continued)
(3)QuickWeb button■ When the computer is off, press the button to open HP QuickWeb.
(4)Wireless buttonTurns the wireless feature on or off but does not establish a
(5)Volume mute buttonMutes and restores speaker sound.
(6)Volume down buttonDecreases computer volume.
(7)Volume up buttonIncreases computer volume.
(8)Fingerprint readerAllows a fingerprint logon to Windows, instead of a password logon.
Lights
Refer to the illustration that most closely matches your computer.
✎
■ When the computer is on, press the button to open the default
Web browser.
wireless connection.
ItemComponentDescription
(1)Wireless lights (2)*■ Blue: An integrated wireless device, such as a WLAN device,
the HP Mobile Broadband Module (select models only), and/or a Bluetooth
device, is on.
■ Amber: All wireless devices are off.
(2)Power lights (2)†■ On: The computer is on.
■ Blinking: The computer is in the Sleep state (Windows 7 and Windows
Vista) or Standby (Windows XP).
■ Off: The computer is off or in Hibernation.
(Continued)
2–8Maintenance and Service Guide
External component identification
ItemComponentDescription
Lights (continued)
(3)Battery light■ Amber: A battery is charging.
■ Turquoise: A battery is close to full charge capacity.
■ 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: If the computer is plugged into an external power source, the light turns
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.
(4)Drive light■ Blinking turquoise: The hard drive or optical drive (select models only) is
being accessed.
■ Amber: HP 3D DriveGuard has temporarily parked the hard drive.
(5)QuickLook light■ On: The computer is on.
■ Off: The computer is off or in the Sleep state (Windows 7 and
Windows Vista) or Standby (Windows XP) or Hibernation.
(6)QuickWeb lightOn: The Web browser is in use.
(7)Caps lock lightOn: Caps lock is on.
(8)Num lock lightOn: Num lock is on or the embedded numeric keypad is enabled.
(9)Volume mute light■ Turquoise: Speaker sound is on.
■ Amber: Speaker sound is off.
(10)Volume down lightBlinking: The volume down button is being used to decrease the
speaker volume.
(11)Volume up lightBlinking: The volume up button is being used to increase the speaker volume.
(12)Calculator lightOn: The Windows calculator function is on.
*The 2 wireless lights display the same information. The light on the wireless button is visible only when the computer is open.
The wireless light on the front of the computer is visible whether the computer is open or closed.
†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.
Maintenance and Service Guide2–9
External component identification
ItemComponentDescription
(1)Wireless lights (2)*■ Blue: An integrated wireless device, such as a WLAN device,
the HP Mobile Broadband Module (select models only), and/or a Bluetooth
device, is on.
■ Amber: All wireless devices are off.
(2)Power lights (2)†■ On: The computer is on.
■ Blinking: The computer is in the Sleep state (Windows 7 and Windows
Vista) or Standby (Windows XP).
■ Off: The computer is off or in Hibernation.
(Continued)
2–10Maintenance and Service Guide
External component identification
ItemComponentDescription
Lights (continued)
(3)Battery light■ Amber: A battery is charging.
■ Turquoise: A battery is close to full charge capacity.
■ 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: If the computer is plugged into an external power source, the light turns
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.
(4)Drive light■ Blinking turquoise: The hard drive or optical drive (select models only) is
being accessed.
■ Amber: HP 3D DriveGuard has temporarily parked the hard drive.
(5)QuickLook light■ On: The computer is on.
■ Off: The computer is off or in the Sleep state (Windows 7 and
Windows Vista) or Standby (Windows XP) or Hibernation.
(6)QuickWeb lightOn: The Web browser is in use.
(7)Caps lock lightOn: Caps lock is on.
(8)Num lock lightOn: Num lock is on or the embedded numeric keypad is enabled.
(9)Volume mute light■ Turquoise: Speaker sound is on.
■ Amber: Speaker sound is off.
(10)Volume down lightBlinking: The volume down button is being used to decrease the
speaker volume.
(11)Volume up lightBlinking: The volume up button is being used to increase the speaker volume.
*The 2 wireless lights display the same information. The light on the wireless button is visible only when the computer is open.
The wireless light on the front of the computer is visible whether the computer is open or closed.
†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.
Maintenance and Service Guide2–11
External component identification
Front components
ItemComponentDescription
(1)Wireless light■ Blue: An integrated wireless device, such as a wireless local area network
(2)Power light■ On: The computer is on.
(3)Battery light■ Amber: A battery is charging.
(4)Drive light■ Blinking turquoise: The hard drive or optical drive (select models only) is
(WLAN) device, the HP Mobile Broadband Module (select models only),
and/or a Bluetooth device, is on.
■ Amber: All wireless devices are off.
■ Blinking: The computer is in the Sleep state (Windows 7 and
Windows Vista) or Standby (Windows XP).
■ Off: The computer is off or in Hibernation.
■ Turquoise: A battery is close to full charge capacity.
■ 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: If the computer is plugged into an external power source, the light turns
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.
being accessed.
■ Amber: HP 3D DriveGuard has temporarily parked the hard drive.
(5)Webcam light (select models only)On: The webcam is in use.
(6)Display release latchOpens the computer.
(7)Speakers (2)Produce sound.
2–12Maintenance and Service Guide
Right-side components
Refer to the illustration that most closely matches your computer.
✎
ItemComponentDescription
(1)Media Card ReaderSupports the following optional digital card formats:
(2)Upgrade baySupports an optical drive or a hard drive.
(3)USB portConnects an optional USB device.
External component identification
■ Memory Stick
■ Memory Stick Pro
■ Memory Stick Duo (adapter required)
■ Memory Stick Duo Pro (adapter required)
■ MultiMediaCard
■ MultiMediaCard Plus
■ Secure Digital (SD) Memory Card
■ Secure Digital (SD) High Capacity Memory Card
■ micro Secure Digital (SD) Memory Card (adapter required)
■ xD-Picture Card
(4)1394 portConnects an optional IEEE 1394 or 1394a device, such as a camcorder.
(5)Serial portConnects an optional device such as a serial modem, mouse, or printer.
Maintenance and Service Guide2–13
External component identification
ItemComponentDescription
(1)Media Card ReaderSupports the following optional digital card formats:
(2)Upgrade baySupports an optical drive or a hard drive.
■ Memory Stick
■ Memory Stick Pro
■ Memory Stick Duo (adapter required)
■ Memory Stick Duo Pro (adapter required)
■ MultiMediaCard
■ MultiMediaCard Plus
■ Secure Digital (SD) Memory Card
■ Secure Digital (SD) High Capacity Memory Card
■ micro Secure Digital (SD) Memory Card (adapter required)
■ xD-Picture Card
(3)USB portConnects an optional USB device.
(4)1394 portConnects an optional IEEE 1394 or 1394a device, such as a camcorder.
(5)RJ-11 (modem) jackConnects a modem cable.
(6)Security cable slotAttaches an optional security cable to the computer.
The security cable is designed to act as a deterrent, but it may not
✎
prevent the computer from being mishandled or stolen.
2–14Maintenance and Service Guide
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