HP 4440s, 4540s User Manual

HP ProBook 4540s Notebook PC
HP ProBook 4440s Notebook PC
HP ProBook 4441s Notebook PC

Maintenance and Service Guide

© Copyright 2012 Hewlett-Packard
Development Company, L.P.

Bluetooth is a trademark owned by its
proprietor and used by Hewlett-Packard
Company under license. Intel and Core are
trademarks or registered trademarks of Intel
Corporation in the United States and other
countries. Microsoft and Windows are either
trademarks or registered trademarks of
Microsoft Corporation in the United States
and/or other countries. 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: May 2012

Document Part Number: 679211-001

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 ........................................................................................................................................ 1

2 External component identification ................................................................................................................ 8

Display .................................................................................................................................................. 8

Top ....................................................................................................................................................... 9

TouchPad ............................................................................................................................ 9

Lights ................................................................................................................................. 10

Buttons, speakers, and fingerprint reader (select models only) ......................................... 11

Keys ................................................................................................................................... 12

Model 4540s ...................................................................................................... 12

Model 4440s/4441s ........................................................................................... 13

Front ................................................................................................................................................... 14

Left ..................................................................................................................................................... 15

Right ................................................................................................................................................... 16

3 Illustrated parts catalog ............................................................................................................................... 17

Service tag ......................................................................................................................................... 17

Computer major components ............................................................................................................. 18

Model 4540s ...................................................................................................................... 18

Model 4440s/4441s ........................................................................................................... 22

Display components ........................................................................................................................... 25

Plastics Kit .......................................................................................................................................... 26

Cable Kit ............................................................................................................................................. 27

Mass storage devices ......................................................................................................................... 28

Miscellaneous parts ............................................................................................................................ 29

Sequential part number listing ............................................................................................................ 30

4 Removal and replacement procedures ....................................................................................................... 36

Preliminary replacement requirements ............................................................................................... 36

Tools required .................................................................................................................... 36

Service considerations ....................................................................................................... 36

v

Plastic parts ....................................................................................................... 36

Cables and connectors ..................................................................................... 37

Drive handling ................................................................................................... 37

Grounding guidelines ......................................................................................................... 38

Electrostatic discharge damage ........................................................................ 38

Packaging and transporting guidelines ............................................. 39

Workstation guidelines ..................................................................... 39

Equipment guidelines ....................................................................... 40

Component replacement procedures ................................................................................................. 41

Service tag ......................................................................................................................... 41

Battery ............................................................................................................................... 42

Using the optional security screw ...................................................................................... 43

Bottom door ....................................................................................................................... 44

SIM .................................................................................................................................... 45

Optical drive ....................................................................................................................... 46

Hard drive .......................................................................................................................... 48

Memory modules ............................................................................................................... 50

WWAN module .................................................................................................................. 52

WLAN/Bluetooth combo card ............................................................................................ 54

Keyboard ........................................................................................................................... 56

Heat shield ......................................................................................................................... 59

Fan ..................................................................................................................................... 61

Heat sink ............................................................................................................................ 63

Processor ........................................................................................................................... 66

Top cover ........................................................................................................................... 67

Fingerprint reader board .................................................................................................... 75

Speaker assembly ............................................................................................................. 76

Function board/Power button board assembly .................................................................. 79

Audio board ....................................................................................................................... 81

USB connector assembly .................................................................................................. 82

Battery cable ...................................................................................................................... 84

System board ..................................................................................................................... 85

RTC battery ....................................................................................................................... 88

Optical drive extension board (4540s models only) ........................................................... 90

Hard drive extension board (4540s models only) .............................................................. 92

Power cable ....................................................................................................................... 94

Latch assembly .................................................................................................................. 95

Display assembly ............................................................................................................... 97

5 Computer Setup (BIOS) and Advanced System Diagnostics ................................................................. 105

Using Computer Setup ..................................................................................................................... 105

vi

Starting Computer Setup ................................................................................................. 105

Navigating and selecting in Computer Setup ................................................................... 105

Restoring factory settings in Computer Setup ................................................................. 106

Updating the BIOS ........................................................................................................... 107

Downloading SoftPaqs to update the BIOS .................................................... 107

BIOS management using system diagnostics ................................................. 107

Using f10 setup to update the BIOS ................................................................ 107

Determining the BIOS version ......................................................................... 108

Downloading a BIOS update ........................................................................... 109

BIOS Setup Menu ............................................................................................................ 109

Main menu ...................................................................................................... 110

Security menu ................................................................................................. 110

Diagnostics menu ............................................................................................ 110

Using Advanced System Diagnostics ............................................................................................... 110

6 Specifications .............................................................................................................................................. 112

Computer specifications ................................................................................................................... 112

39.6-cm (15.6-in), HD display specifications .................................................................................... 113

35.6-cm (14.0-in), HD display specifications .................................................................................... 114

Hard drive specifications .................................................................................................................. 115

DVD±RW and CD-RW SuperMulti DL Combo Drive specifications ................................................. 116

Blu-ray Disc ROM with SuperMulti DVD±R/RW DL Drive ................................................................ 117

Specification information in Device Manager ................................................................................... 118

7 Backup and recovery .................................................................................................................................. 119

Creating recovery media with HP Recovery Disc Creator ................................................................ 120

Creating recovery media .................................................................................................. 120

Backing up your information ............................................................................................................. 121

Performing a system recovery .......................................................................................................... 122

Using the Windows recovery tools ................................................................................... 122

Using f11 recovery tools .................................................................................................. 123

Using a Windows 7 operating system DVD (purchased separately) ............................... 123

8 Power cord set requirements .................................................................................................................... 125

Requirements for all countries and regions ...................................................................................... 125

Requirements for specific countries and regions ............................................................................. 126

9 Recycling ..................................................................................................................................................... 128

Battery .............................................................................................................................................. 128

Display .............................................................................................................................................. 128

vii

Index ................................................................................................................................................................. 134

viii

1 Product description

Category Description 4540s

(UMA)

Product Name HP ProBook 4540s Notebook PC √√

HP ProBook 4440s Notebook PC √√

HP ProBook 4441s Notebook PC √

Processors Intel® Core™ i7 processor, Quad Core (6-MB L3

cache, 35W)

3612QM, 2.10-GHz processor √√√√

Intel® Core i5 processors, Dual Core (3-MB L3

cache, 35W)

3360M, 2.80-GHz processor √√√√

3320M, 2.60-GHz processor √√√√

2450M, 2.50-GHz processor √√√ √

Intel Core i3 processors, Dual Core, 3rd

generation (3-MB L3 cache, 35W)

3110M, 2.40-GHz processor √√√√

Intel Core i3 processors, Dual Core, 2nd

generation (3-MB L3 cache, 35W)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

2370M, 2.40-GHz processor √√√√

2350M, 2.30-GHz processor √√√√

Intel Pentium processor, Dual Core (2-MB L3

cache, 35W)

B980, 2.40-GHz processor √√√√

B970, 2.30-GHz processor √√√√

Intel Celeron processor (2-MB L3 cache, 35W)

B840, 1.90-GHz processor √√√√

Chipset Mobile Intel HM76 chipset √√√√

Graphics Intel HD Graphics (UMA) √ √

AMD Radeon™ HD 7650M, 1-GB or 2-GB

(discrete)

√ √

1

Category Description 4540s

(UMA)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

Panel All display assemblies include 2 wireless local area

network (WLAN) antennas

All displays are LED backlit

39.6-cm (15.6-inch) HD, 1366x768 √

39.6-cm (15.6-inch) HD, 1366x768, includes
camera

39.6-cm (15.6-inch) HD, 1366x768, includes
camera and WWAN

35.6-cm (14.0-inch) HD, 1366x768 √

35.6-cm (14.0-inch) HD, 1366x768, with camera √√

35.6-cm (14.0-inch) HD, 1366x768, with camera
and WWAN

35.6-cm (14.0-inch) HD, BrightView, 1366x768 √

35.6-cm (14.0-inch) HD, BrightView, 1366x768, with
camera

35.6-cm (14.0-inch) HD, BrightView, 1366x768, with
camera and WWAN

Memory Two customer-accessible/upgradeable memory

module slots supporting up to 8 GB of RAM

√√√√

√√

√

√

√√

√

√√√√

Supports dual-channel memory √√√√

PC3-10600, 1333-MHz, DDR3 √√√√

Supports the following configurations:

● 8192 (4096 × 2)

6144 (4096 + 2048)

●

4096 (2048 × 2)

●

● 4096 (4096 × 1)

2048 (2048 × 1)

●

Brazil

8192 (4096 × 2; dual channel)

●

4096 (2048 × 2; dual channel)

●

● 4096 (4096 × 1)

2048 (2048 × 1)

●

Hard drives Supports 7-mm/9.5-mm, 2.5-in SATA hard drives

Supports 12.7-mm. 2.5-inch hard drives with HP 3D

with HP 3D DriveGuard

DriveGuard

√√√√

√

√√√√

√√

Customer-accessible √√√√

2 Chapter 1 Product description

Category Description 4540s

(UMA)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

Supports the following drives:

● 750-GB, 7200-rpm or 5400-rpm

● 640-GB, 5400-rpm

● 500-GB, 7200-rpm or 5400-rpm

320-GB, 7200-rpm or 5400-rpm

●

Supports the following drives:

● 750-GB, 7200-rpm or 5400-rpm

● 640-GB, 5400-rpm

● 500-GB, 7200-rpm

320-GB, 7200-rpm

●

Fixed optical drives Supports the following 12.7-mm SATA optical

drives:

● DVD+/-RW SuperMulti DL

Blu-ray ROM DVD+/-RW SuperMulti DL

●

DVD-ROM drive √√

Supports no optical drive option √√√√

√√

√√

√√√√

Audio/Visual Integrated dual-array microphone (webcam models

only)

Integrated mono (non-webcam models) √ √

Stereo speakers (2) √√√√

Integrated webcam (720p HD) √√√√

Supports no camera option √ √

Headphone and microphone jacks √√√√

IDT 92HD87 √√√√

Ethernet Realtek RTL8151FH-CG 10/100/1000 √√√√

S3/S4/S5 wake on LAN (AC mode only) √√√√

Ethernet cable not included √√√√

Wireless Integrated WLAN options by way of wireless module:

Two WLAN antennas built into display assembly √√√√

Supports “no WLAN” option √√√√

√√√√

3

Category Description 4540s

(UMA)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

Supports the following WLAN formats:

● Ralink 802.11 b/g/n 1×1

● Atheros 802.11 b/g/n 1×1

● Atheros 802.11 b/g/n + BT Combo

Broadcom 802.11 b/g/n + BT Combo

●

Intel 802.11 b/g/n + BT Combo

●

Intel 802.11 a/b/g/n 2×2 + BT Combo

●

Integrated WWAN options by way of wireless module:

Two WWAN antennas built into display assembly

Subscriber identity module (SIM) security

Supports “no WWAN” option √√√√

Supports the following WWAN modules:

Integrated personal area network (PAN) options by way of Bluetooth® module:

(world-wide 5 band, configured with panels)

(customer-accessible)

● Sierra MC8355 HSPA/CDMA with GPS

● Ericsson 5321 HSPA+ with GPS

√√√√

√ √

√ √

√ √

Bluetooth 4.0 only supported by combo card √√√√

External media card 6-in-1 Digital Media Reader Slot √√√√

Ports Audio-in (stereo microphone) √√√√

Audio-out (stereo headphone) √√√√

RJ-45 (Ethernet, includes link and activity lights) √√√√

USB 3.0 (2) √√√√

USB 2.0 (2) √√√√

VGA (Dsub 15-pin) supporting 1600 × 1200

HDMI √√√√

Multi-pin AC port √√√√

Keyboard/pointing
devices

Numeric keypad √√

Touchpad includes: supports 2-way scroll with

external resolution at 75-GHz (hot plug/unplug with
auto-detect)

Full-sized keyboard √√√√

legend, taps enabled by default, 2-finger scrolling
and zoom enabled by default

√√√√

√√√√

4 Chapter 1 Product description

Category Description 4540s

(UMA)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

Power requirements Smart AC adapter with localized cable plug support

(3-wire plug with ground pin):

90-W √ √

65-W √ √

9-cell, 93-Wh Li-ion battery √√√√

6-cell, 47-Wh Li-ion battery √√√√

Security Integrated fingerprint reader √√√√

Intel AT support √√√√

Support Kensington security lock √√√√

Support no fingerprint reader option √√√√

Operating system Preinstalled:

Windows 7 Professional 64 with Microsoft Basics √√√√

Windows 7 Professional 32 with Microsoft Basics

(Japan only)

Windows 7 Home Premium 64 with Microsoft

Basics

Novell™: SuSE Linux™ – SLED 11, 64-bit, SP2

(not available with WWAN)

√√√√

√√

√√√√

√√√√

FreeDOS √√√√

Preinstalled with Microsoft Office:

Windows 7 Home Basic 64 with Microsoft Office

2010 Starter (not for Japan)

Windows 7 Home Basic 64 with Microsoft Office

2010 Starter – EDGI

Windows 7 Home Basic 64 with Microsoft Office

2010 Professional (Japan only)

Windows 7 Professional 64 with Microsoft Office

2010 Starter MSNA

Windows 7 Professional 64 with Microsoft Office

2010 Starter EDGI

Windows 7 Professional 64 with Microsoft Office

2010 Starter (not for Japan)

Windows 7 Professional 64 with Microsoft Office

2010 Personal (Japan only)

Windows 7 Professional 64 with Microsoft Office

2010 Home & Business (Japan only)

Windows 7 Professional 64 with Microsoft Office

2010 Professional (Japan only)

√√√√

√√√√

√√√√

√√√√

√√√√

√√√√

√√√√

√√√√

√√√√

5

Category Description 4540s

(UMA)

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

Windows 7 Professional 32 with Microsoft Office

2010 Personal (Japan only)

Windows 7 Professional 32 with Microsoft Office

2010 Home & Business (Japan only)

Windows 7 Professional 32 with Microsoft Office

2010 Professional (Japan only)

Windows 7 Home Premium 64 with Microsoft Office

2010 Starter EDGI

Windows 7 Home Premium 64 with Microsoft Office

2010 Starter (not for Japan)

Windows 7 Home Premium 64 with Microsoft Office

2010 Personal (Japan only)

Windows 7 Home Premium 64 with Microsoft Office

2010 Home & Business (Japan only)

Windows 7 Home Premium 64 with Microsoft Office

2010 Professional

Restore Media:

Windows 7 Professional 64 √√√√

Windows 7 Professional 32 √√

Windows 7 Home Premium 64 √√√√

√√

√√

√√

√√√√

√√√√

√√√√

√√√√

√√√√

Windows 7 Home Basic 64 √√√√

DRDVD Windows 7 √√√√

Web-only support:

Windows XP Professional (Discrete graphic drive

not supported)

Windows 7 Home Basic 32 √√√√

Windows 7 Home Premium 32 √√√√

Windows 7 Professional 32 √√√√

Certified:

Microsoft WHQL √√√√

Serviceability End-user replaceable parts:

AC adapter √√√√

Battery (system) √√√√

Hard drive √√√√

Memory module √√√√

Optical drive √√√√

WLAN module √√√√

√√√√

6 Chapter 1 Product description

Category Description 4540s

(UMA)

WWAN module √ √

Keyboard √√√√

4540s
(Disc)

4440s
(UMA)

4440s/

4441s
(Disc)

7

2 External component identification

Display

Component Description

(1) WWAN antennas (2)* (select models only) Send and receive wireless signals to communicate with wireless

(2) WLAN antennas (2)* Send and receive wireless signals to communicate with wireless

(3) Internal microphone(s) (1 or 2 depending on

model)

(4) Webcam light (select models only) On: The webcam is in use.

(5) Webcam (select models only) Records video and captures still photographs.

8 Chapter 2 External component identification

wide-area networks (WWAN).

local area networks (WLAN).

Record sound.

To use the webcam, select Start > All Programs > Music,

Photos and Videos>WebCam Companion.

Component Description

(6) Internal display switch Turns off the display or initiates Sleep if the display is closed

*The antennas are not visible from the outside of the computer. For optimal transmission, keep the areas immediately
around the antennas free from obstructions. To see wireless regulatory notices, 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.

Top

TouchPad

while the power is on.

NOTE: The display switch is not visible from the outside of the

computer.

Component Description

(1) TouchPad on/off button Turns the TouchPad on and off.

(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.

screen.

Top 9

Lights

Components Description

(1)

(2) Caps lock light On: Caps lock is on.

(3)

(4)

(5) TouchPad light

Power light

Web browser light

Wireless light ● White: An integrated wireless device, such as a

On: The computer is on.

●

● Blinking: The computer is in the Sleep state.

Off: The computer is off or in Hibernation.

●

On: The computer is on.

●

● Off: The computer is off, in Suspend mode, or in

Hibernation.

wireless local area network (WLAN) device and/or a
Bluetooth® device, is on

● Amber: All wireless devices are off.

Amber: The TouchPad is off.

●

● Off: TouchPad is on.

10 Chapter 2 External component identification

Buttons, speakers, and fingerprint reader (select models only)

Component Description

(1)

(2) Speakers (2) Produce sound.

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, press the

button briefly to exit Sleep.

When the computer is in Hibernation, press the button

●

briefly to exit Hibernation.

If the computer has stopped responding and Microsoft®
Windows® shutdown procedures are ineffective, press and
hold the power button down for at least 5 seconds to turn off
the computer.

CAUTION: Pressing and holding down the power button

will result in the loss of unsaved information.

To learn more about your power settings:

Select Start > Control Panel > System and

●

Security > Power Options.

Refer to the HP Notebook Reference Guide.

●

(3)

Web browser button Opens the default Web browser.

Top 11

Component Description

(4)

(5) Fingerprint reader (select models only) Allows a fingerprint logon to Windows, instead of a

Keys

Model 4540s

Wireless button Turns the wireless feature on or off but does not establish a

wireless connection.

password logon.

Component Description

(1) esc key Displays system information when pressed in combination

(2) fn key Executes frequently used system functions when pressed

(3)

(4) Function keys Execute frequently used system functions when pressed in

(5)

(6) num lk key Alternates between the navigational and numeric functions

(7) Integrated numeric keypad Can be used like an external numeric keypad.

Windows logo key Displays the Windows Start menu.

Windows applications key Displays a shortcut menu for items beneath the cursor.

with the fn key.

in combination with a function key, the num lk key, the esc
key, or other keys.

combination with the fn key.

on the integrated numeric keypad.

12 Chapter 2 External component identification

Model 4440s/4441s

Component Description

(1) esc key Displays system information when pressed in combination

(2) fn key Executes frequently used system functions when pressed in

(3)

(4) Function keys Execute frequently used system functions when pressed in

(5) Embedded numeric keypad keys When the keypad is turned on, it can be used like an

(6)

(7) num lk key Turns the embedded numeric keypad on and off when

Windows logo key Displays the Windows Start menu.

Windows applications key Displays a shortcut menu for items beneath the cursor.

with the fn key.

combination with a function key, the num lk key, the esc
key, or other keys.

combination with the fn key.

external numeric keypad.

Each key on the keypad performs the function indicated by
the icon in the upper-right corner of the key.

pressed in combination with the fn key.

Top 13

Front

Component Description

(1)

(2) Media Card Reader Supports the following digital card formats:

(3)

Drive light

Audio-out (headphone) jack Connects optional powered stereo speakers, headphones,

White: The hard drive is being accessed.

●

● Amber: HP 3D DriveGuard has temporarily parked the

hard drive.

NOTE: For information on HP 3D DriveGuard, refer

to the HP Notebook Reference Guide.

● Memory Stick PRO

● Memory Stick PRO Duo (needs an adapter)

● MultiMediaCard (MMC)

MultiMediaCardplus (MMC+)

●

Secure Digital (SD) Card

●

Secure Digital High Capacity (SDHC) Card

●

Secure Digital Extra Capacity (SDXC) Card

●

earbuds, a headset, or a television audio cable.

WARNING! To reduce the risk of personal injury, adjust

the volume before putting on headphones, earbuds, or a
headset. For additional safety information, refer to the

Regulatory, Safety, and Environmental Notices

(4)

Audio-in (microphone) jack Connects an optional computer headset microphone, stereo

14 Chapter 2 External component identification

NOTE: When a device is connected to the jack, the

computer speakers are disabled.

array microphone, or monaural microphone.

Left

Component Description

(1)

(2) Power connector Connects an AC adapter.

(3)

(4) Vent Enables airflow to cool internal components.

(5)

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.

AC adapter/battery light

External monitor port Connects an external VGA monitor or projector.

White: The computer is connected to external power

●

and the battery is charged from 90 to 99 percent.

Amber: The computer is connected to external power

●

and the battery is charged from 0 to 90 percent.

● Blinking amber: A battery that is the only available

power source has reached a low battery level. When
the battery reaches a critical battery level, the battery
light begins blinking rapidly.

Off: The battery is fully charged.

●

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.

(6)

(7)

(8)

RJ-45 (network) jack Connects a network cable.

HDMI port Connects an optional video or audio device, such as a

high-definition television, or any compatible digital or audio
device.

USB 3.0 ports (2) Connect optional USB devices. For more information about

USB devices, see the HP Notebook Reference Guide.

Left 15

Right

Component Description

(1)

(2) Optical drive (select models only) Reads an optical disc.

(3) Optical drive light (select models only)

(4) Optical drive eject button (select models

USB 2.0 ports (2) Connect optional USB devices. For more information about

USB devices, see the HP Notebook Reference Guide.

NOTE: On select models, the optical drive also writes to

an optical disc.

On: The optical drive is being accessed.

●

● Off: The optical drive is idle.

only)

Releases the optical drive disc tray.

16 Chapter 2 External component identification

3 Illustrated parts catalog

Service tag

When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag.

Product name (1). This is the product name affixed to the front of the computer.

●

Serial number (s/n) (2). This is an alphanumeric identifier that is unique to each product.

●

Part number/Product number (p/n) (3). 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.

Warranty period (4). This number describes the duration (in years) of the warranty period for the

●

computer.

Model description (select models only) (5). This is the alphanumeric identifier used to locate

●

documents, drivers, and support for the computer.

Service tag 17

Computer major components

Model 4540s

Figure 3-1 Model 4540s

18 Chapter 3 Illustrated parts catalog

Item Description Spare part number

(1) Display panel

39.6-cm (15.6-inch) HD, anti-glare, without webcam 683481-001

39.6-cm (15.6-inch) HD, anti-glare, with webcam 683482-001

39.6-cm (15.6-inch) HD, anti-glare, with webcam and WWAN 683483-001

(2) Keyboard (includes cable)

NOTE: For a detailed list of available keyboards, see

on page 30.

(3) Top cover (includes touchpad assembly and cable)

With a fingerprint reader 683506-001

Without a fingerprint reader 683507-001

(4) Audio board 683475-001

(5) Function board/Power button board assembly (includes cable) 683486-001

(6) Speaker assembly 683505-001

(7) RTC battery 683502-001

(8) System board (includes replacement thermal material)

UMA graphics with WWAN 683496-001

UMA graphics without WWAN 683495-001

1-GB discrete graphics memory 683493-001

2-GB discrete graphics memory 683494-001

(9) Fingerprint reader assembly (includes cable, bracket, and screws) 683485-001

(10) Optical drive extension board 683498-001

Sequential part number listing

683491-xxx

(11) Heat shield 687696-001

(12) Hard drive extension board 683487-001

(13) Base enclosure 683476-001

(14) Battery, Li-ion

9-cell (93 WHr, 2.8 Ah) 633809-001

6-cell (47 WHr, 2.2 Ah) 633805-001

(15) WLAN module

Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter 655795-001

Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter 657325-001

Intel Centrino Wireless-N 2230 670290-001

Intel Centrino Advanced-N 6235 670292-001

Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC 670691-001

Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter 675794-001

Computer major components 19

Item Description Spare part number

(16) WWAN modules

Ericsson F5321 HSPA+ with GPS 668969-001

Sierra MC8355 HSPA/CDMA with GPS 634400-001

(17) Memory modules (PC3-12800, 1600-MHz, DDR3)

4-GB 641369-001

2-GB 652972-001

(18) Optical drive (includes bracket, bezel, and screws)

DVD±RW Double-Layer Drive 683500-001

Blu-ray ROM DVD±RW SuperMulti DL Drive 683499-001

(19) Processor (includes thermal material)

Intel Core i7 processor, Quad Core

3612QM, 2.1-GHz processor with 6-MB L3 cache 680647-001

Intel Core i5 processors, Dual Core

3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease) 681953-001

3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease) 681952-001

2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease) 676359-001

Intel Core i3 processors, Dual Core

3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 682417-001

2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease) 677152-001

2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 653340-001

Intel Pentium processor, Dual Core

B980, 2.4-GHz, with 2-MB L3 cache 692428-001

B970, 2.3-GHz, with 2-MB L3 cache 676785-001

Intel Celeron processor

B840, 1.9-GHz, with 2-MB L3 cache 664663-001

(20) Heat sink (includes replacement thermal material)

For use in models with discrete graphics 683489-001

For use in models with UMA graphics 683490-001

(21) Fan 683484-001

(22) Hard drive

750-GB, 7200-rpm 633252-001

750-GB, 5400-rpm 634250-001

640-GB, 5400-rpm 669300-001

500-GB, 7200-rpm 634925-001

20 Chapter 3 Illustrated parts catalog

Item Description Spare part number

320-GB, 7200-rpm 641672-001

(23) Bottom door 690978-001

Computer major components 21

Model 4440s/4441s

Figure 3-2 Model 4440s/4441s

22 Chapter 3 Illustrated parts catalog

Item Description Spare part number

(1) Display panel

35.6-cm (14.0-inch), anti-glare, without webcam 683644-001

35.6-cm (14.0-inch), anti-glare, with webcam 683645-001

35.6-cm (14.0-inch), anti-glare, with webcam and WWAN 683646-001

35.6-cm (14.0-inch), BrightView, without webcam 683647-001

35.6-cm (14.0-inch), BrightView, with webcam 683648-001

35.6-cm (14.0-inch), BrightView, with webcam and WWAN 683650-001

(2) Keyboard (includes cable)

NOTE: For a detailed list of available keyboards, see

on page 30.

(3) Top cover (includes touchpad assembly)

With a fingerprint reader 683666-001

Without a fingerprint reader 683667-001

(4) Audio board 683475-001

(5) RTC battery 683502-001

(6) Function board/Power button board assembly (includes cable) 683653-001

(7) Fingerprint reader assembly (includes cable, bracket, and screws) 683652-001

(8) System board (includes replacement thermal material)

For use in models with 1-GB discrete graphics 683493-001

For use in models with 2-GB discrete graphics 683494-001

For use in models with UMA graphics without WWAN 683495-001

For use in models with UMA graphics and with WWAN 683496-001

(9) Speaker assembly 683665-001

(10) Heat shield 683497-001

Sequential part number listing

683657-xxx

(11) Battery, Li-ion

9-cell (93 WHr, 2.8 Ah) 633809-001

6-cell (47 WHr, 2.2 Ah) 633805-001

(12) Base enclosure 683639-001

(13) WLAN module

Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter 655795-001

Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter 657325-001

Intel Centrino Wireless-N 2230 670290-001

Intel Centrino Advanced-N 6235 670292-001

Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC 670691-001

Computer major components 23

Item Description Spare part number

Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter 675794-001

(14) WWAN modules

Ericsson F5321 HSPA+ with GPS 668969-001

Sierra MC8355 HSPA/CDMA with GPS 634400-001

(15) Memory modules (PC3-12800, 1600-MHz, DDR3)

4-GB 641369-001

2-GB 652972-001

(16) Optical drive (includes bracket, bezel, and screws)

DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 691110-001

Blu-ray ROM DVD±RW SuperMulti DL Drive 691111-001

(17) Processor (includes thermal material)

Intel Core i7 processor, Quad Core

3612QM, 2.1-GHz processor with 6-MB L3 cache 680647-001

Intel Core i5 processors, Dual Core

3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease) 681953-001

3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease) 681952-001

2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease) 676359-001

Intel Core i3 processors, Dual Core

3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 682417-001

2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease) 677152-001

2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 653340-001

Intel Pentium processor, Dual Core

B980, 2.4-GHz, with 2-MB L3 cache 692428-001

B970, 2.3-GHz, with 2-MB L3 cache 676785-001

Intel Celeron processor

B840, 1.9-GHz, with 2-MB L3 cache 664663-001

(18) Hard drive

750-GB, 7200-rpm 633252-001

750-GB, 5400-rpm 634250-001

640-GB, 5400-rpm 669300-001

500-GB, 7200-rpm 634925-001

500-GB, 5400-rpm 669299-001

320-GB, 7200-rpm 641672-001

320-GB, 5400-rpm 622643-001

24 Chapter 3 Illustrated parts catalog

Item Description Spare part number

128-GB solid-state drive 684253-001

(19) Heat sink (includes replacement thermal material)

For use in models with discrete graphics 683655-001

For use in models with UMA graphics 683656-001

(20) Fan 683651-001

(21) Bottom door 690979-001

Display components

Item Description Spare part number

(1) Display bezel

For use with 4540s models with a webcam 683478-001

For use with 4540s models without a webcam 683479-001

For use with 4440/4441s models with a webcam 683641-001

For use with 4440/4441s models without a webcam 683642-001

(2) Webcam module for use in all models 683508-001

Microphone module (not illustrated) 647675-001

Display Hinge Kit

For use with 4540s models 683480-001

For use with 4440/4441s models 683643-001

(3) ● Display hinge covers

(4)

Display hinges

●

Screw covers (not illustrated)

●

Display components 25

Plastics Kit

Item Description Spare part number

Plastics Kit for use in 4540s models 683501-001

Plastics Kit for use in 4440s/4441s models 683662-001

(1) Optical drive protective insert

(2) Secure Digital card protective insert

26 Chapter 3 Illustrated parts catalog

Cable Kit

Item Description Spare part number

Cable Kit for use in 4540s models 683477-001

Cable Kit for use in 4440s/4441s models 683640-001

(1) Battery connector cable

(2) Power connector cable

(3) Audio cable

(4) USB connector and cable

Cable Kit 27

Mass storage devices

Description Spare part number

(1) Hard drives

750-GB, 7200-rpm 633252-001

750-GB, 5400-rpm 634250-001

640-GB, 5400-rpm 669300-001

500-GB, 7200-rpm 634925-001

500-GB, 5400-rpm (4440s/4441s models only) 669299-001

320-GB, 7200-rpm 641672-001

320-GB, 5400-rpm (4440s/4441s models only) 622643-001

128-GB solid-state drive 684253-001

Hard Drive Hardware Kit (includes hard drive bracket and screws; not illustrated) 683488-001

(2) Optical drives

For use in 4540s models:

● DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 683500-001

For use in 4440s/4441s models:

● DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 691111-001

Blu-ray ROM DVD±RW SuperMulti DL Drive 683499-001

●

Blu-ray ROM DVD±RW SuperMulti DL Drive 691110-001

●

28 Chapter 3 Illustrated parts catalog

Miscellaneous parts

Description Spare part number

AC adapters

65-W AC adapter 693711-001

65-W AC adapter for use in India and the People's Republic of China 693710-001

90-W AC adapter 693712-001

90-W AC adapter for use in India and the People's Republic of China 693713-001

Power cords:

For use in Argentina 490371-D01

For use in Brazil 490371-202

For use in Denmark 490371-081

For use in Europe, the Middle East, and Africa 490371-021

For use in Israel 490371-BB1

For use in Italy 490371-061

For use in South Africa 490371-AR1

For use in South Korea 490371-AD1

For use in Switzerland 490371-111

For use in Thailand 490371-201

For use in the United Kingdom 490371-031

For use in the United States 490371-001

Rubber Kit (includes LCD screw covers rubber feet)

For use with model 4540s 683503-001

For use with model 4440s/4441s 683663-001

Screw Kit

For use with model 4540s 683504-001

For use with model 4440s/4441s 683664-001

Locks

Notebook combination lock 591699-001

HP keyed cable lock 626729-001

Mice

HP USB Optical Travel Mouse 434594-001

Optical mouse 390632-001

Cases

Slim top load case 592923-001

Miscellaneous parts 29

Description Spare part number

Nylon case 612757-001

Top load case 679921-001

Sequential part number listing

CSR flag designations:

A = Mandatory

B = Optional

C = Service technician recommended

N = Non-user replaceable

Spare part
number

390632-001 A Optical mouse

434594-001 A HP USB Optical Travel Mouse

490371-001 A Power cord for use in North America

490371-011 A Power cord for use in Australia and New Zealand

490371-021 A Power cord for use in Europe, the Middle East, and Africa

490371-031 A Power cord for use in the United Kingdom

490371-061 A Power cord for use in Italy

490371-081 A Power cord for use in Denmark

490371-111 A Power cord for use in Switzerland

490371-201 A Power cord for use in Thailand

490371-291 A Power cord for use in Japan

490371-AA1 A Power cord for use in the People's Republic of China

490371-AB1 A Power cord for use in Taiwan

490371-AD1 A Power cord for use in South Korea

490371-AR1 A Power cord for use in South Africa

CSR
flag

Description

490371-BB1 A Power cord for use in Israel

490371-D01 A Power cord for use in Argentina

490371-D61 A Power cord for use in India

591699-001 A Notebook combination lock

592923-001 A Slim top load case

612757-001 A Nylon case

626729-001 A HP keyed cable lock

30 Chapter 3 Illustrated parts catalog

Spare part
number

679921-001 A Top load case

693711-001 A 65-W AC adapter

693712-001 A 90-W AC adapter

693713-001 A 90-W AC adapter for use in India and the People's Republic of China

693710-001 A 65-W AC adapter for use in India and the People's Republic of China

622643-001 A 320-GB, 5400-rpm hard drive (4440s/4441s models only)

631255-001 A Intel Pentium B970 processor, 2.3-GHz, 2-MB L3 cache (includes thermal material)

633252-001 A 750-GB, 7200-rpm hard drive

633805-001 A 6-cell, 47 WHr, 2.2 Ah Li-ion battery

633809-001 A 9-cell, 93 WHr, 2.8 Ah Li-ion battery

634250-001 A 750-GB, 5400-rpm hard drive

634400-001 A Sierra MC8355 HSPA/CDMA with GPS

634925-001 A 500-GB, 7200-rpm hard drive

641369-001 A 4-GB memory module (PC3-12800, 1600-MHz, DDR3)

641672-001 A 320-GB, 7200-rpm hard drive

CSR
flag

Description

647675-001 N Microphone module

652972-001 A 2-GB memory module (PC3-12800, 1600-MHz, DDR3)

653340-001 N Intel Core i3 processor, 2350M, 2.3-GHz processor, 3-MB L3 cache (includes thermal material)

655795-001 A Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter

657325-001 A Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter

664663-001 N Intel Celeron B840 processor, 1.9-GHz processor, 3-MB L3 cache (includes thermal material)

668969-001 A Ericsson F5321 HSPA+ with GPS

669299-001 A 500-GB, 5400-rpm hard drive (4440s/4441s models only)

669300-001 A 640-GB, 5400-rpm hard drive

670290-001 A Intel Centrino Wireless-N 2230 WLAN card

670292-001 A Intel Centrino Advanced-N 6235 WLAN card

670691-001 A Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC

675794-001 A Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter

676359-001 N Intel Core i5 processor, 2450M, 2.5-GHz, 3-MB L3 cache (include thermal material)

676785-001 N Intel Pentium B970 processor, 2.3-GHz, 2-MB L3 cache (includes thermal material)

677152-001 N Intel Core i3 processor, 2370M, 2.4-GHz, 3-MB L3 cache (includes thermal material)

680647-001 N Intel Core i7 processor, 3612QM, 2.1-GHz, 6-MB L3 cache (include thermal material)

681952-001 N Intel Core i5 processor, 3320M, 2.6-GHz, 3-MB L3 cache (include thermal material)

681953-001 N Intel Core i5 processor, 3360M, 2.8-GHz, 3-MB L3 cache (include thermal material)

Sequential part number listing 31

Spare part
number

682417-001 N Intel Core i3 processor, 3110M, 2.3-GHz, 3-MB L3 cache (include thermal material)

683475-001 N Audio board

683476-001 N Base enclosure for use with 4540s models

CSR
flag

Description

683477-001 N Cable Kit for use in 4540s models (see

information)

683478-001 N Display bezel for use with HP ProBook 4540s models with a webcam

683479-001 N Display bezel for use with HP ProBook 4540s models without a webcam

683480-001 N Display Hinge Kit for use on 4540s models (includes left and right hinges, hinge covers, screw covers,

and screws)

683481-001 N 39.6-cm (15.6-inch) display assembly, HD, anti-glare, without webcam, for use in 4540s models

683482-001 N 39.6-cm (15.6-inch) display assembly, HD, anti-glare, with webcam, for use in 4540s models

683483-001 N 39.6-cm (15.6-inch) display assembly, HD, anti-glare, with webcam and WWAN, for use in 4540s

models

683484-001 N Fan

683485-001 N Fingerprint reader assembly for use in 4540s models (includes cable, bracket, and screws)

683486-001 N Function board/power button board assembly for use in 4540s models (includes cable)

683487-001 N Hard drive extension board for use in 4540s models

683488-001 N Hard Drive Hardware Kit (includes hard drive bracket and screws)

683489-001 N Heat sink for use in computers with discrete graphics (includes thermal material)

683490-001 N Heat sink for use in computers with UMA graphics (includes thermal material)

683491-001 A Keyboard for use in 4540s models in the United States

Cable Kit on page 27 for more Cable Kit spare part

683491-031 A Keyboard for use in 4540s models in the United Kingdom

683491-041 A Keyboard for use in 4540s models in Germany

683491-051 A Keyboard for use in 4540s models in France

683491-061 A Keyboard for use in 4540s models in Italy

683491-071 A Keyboard for use in 4540s models in Spain

683491-131 A Keyboard for use in 4540s models in Portugal

683491-141 A Keyboard for use in 4540s models in Turkey

683491-151 A Keyboard for use in 4540s models in Greece

683491-161 A Keyboard for use in 4540s models in Latin America

683491-171 A Keyboard for use in 4540s models in Saudi Arabia

683491-211 A Keyboard for use in 4540s models in Hungary

683491-251 A Keyboard for use in 4540s models in Russia

683491-261 A Keyboard for use in 4540s models in Bulgaria

683491-271 A Keyboard for use in 4540s models in Romania

32 Chapter 3 Illustrated parts catalog

Spare part
number

683491-281 A Keyboard for use in 4540s models in Thailand

683491-291 A Keyboard for use in 4540s models in Japan

683491-A41 A Keyboard for use in 47540s models in Belgium

683491-AB1 A Keyboard for use in 4540s models in Taiwan

683491-AD1 A Keyboard for use in 4540s models in South Korea

683491-B31 A Keyboard for use in 4540s models in the Netherlands and Europe

683491-BA1 A Keyboard for use in 4540s models in Slovakia

683491-BB1 A Keyboard for use in 4540s models in Israel

683491-BG1 A Keyboard for use in 4540s models in Switzerland

683491-D61 A Keyboard for use in 4540s models in India

683491-DB1 A Keyboard for use in 4540s models in Canada and England

683491-DD1 A Keyboard for use in 4540s models in Iceland

683491-DH1 A Keyboard for use in 4540s models in the Netherlands

683491-FL1 A Keyboard for use in 4540s models in the Czech Republic and Slovakia

683491-FP1 A Keyboard for use in 4540s models — Arabic

CSR
flag

Description

683493-001 A System board for use in models with 1-GB of discrete graphics memory (includes thermal material)

683494-001 A System board for use in models with 2-GB of discrete graphics memory (includes thermal material)

683495-001 A System board for use in models with UMA graphics without WWAN (includes thermal material)

683496-001 A System board for use in models with UMA graphics with WWAN (includes thermal material)

683498-001 N Optical drive extension board for use in 4540s models

683499-001 A Blu-ray ROM DVD±RW SuperMulti DL Drive (includes bezel, bracket, and screws)

683500-001 A DVD±RW and CD-RW SuperMulti DL Combo Drive (includes bezel, bracket, and screws)

683501-001 A Plastics Kit for use in 4540s models (for more information, see

683502-001 A RTC battery

683503-001 A Rubber Kit for use with model 4540s (includes rubber LCD screw covers and rubber feet)

683504-001 A Screw Kit for use in 4540s models

683505-001 N Speaker assembly for use in 4540s models

683506-001 N Top cover for use in 4540s models with a fingerprint reader (includes touchpad)

683507-001 N Top cover for use in 4540s models without a fingerprint reader (includes touchpad)

683508-001 N Webcam module

683639-001 N Base enclosure for use with 4440s/4441s models

Plastics Kit on page 26)

683640-001 N Cable Kit for use in 4440s/4441s models (see

information)

683641-001 N Display bezel for use with HP ProBook 4440s/4441s models with a webcam

Cable Kit on page 27 for more Cable Kit spare part

Sequential part number listing 33

Spare part
number

683642-001 N Display bezel for use with HP ProBook 4440s/4441s models without a webcam

CSR
flag

Description

683643-001 N Display Hinge Kit for use in 4440s/4441s models (includes left and right hinges, hinge covers, bezel

683644-001 N 35.6-cm (14.0-inch) display assembly, anti-glare, without webcam

683645-001 N 35.6-cm (14.0-inch) display assembly, anti-glare, with webcam

683646-001 N 35.6-cm (14.0-inch) display assembly, anti-glare, with webcam and WWAN

683647-001 N 35.6-cm (14.0-inch) display assembly, BrightView, without webcam

683648-001 N 35.6-cm (14.0-inch) display assembly, BrightView, with webcam

683650-001 N 35.6-cm (14.0-inch) display assembly, BrightView, with webcam and WWAN

683651-001 N Fan for use in 4440s/4441s models

683652-001 N Fingerprint reader assembly for use in 4440s/4441s models (includes cable, bracket, and screws))

683653-001 N Function board/Power button board for use in 4440s/4441s models (includes cable)

683655-001 N Heat sink for use in 4440s/4441s models with discrete graphics (includes thermal material)

683656-001 N Heat sink for use in 4440s/4441s models with UMA graphics (includes thermal material)

683657-001 A Keyboard for use in 4440s/4441s models in the United States

683657-161 A Keyboard for use in 4440s/4441s models in Latin America

683657-201 A Keyboard for use in 4440s/4441s models in Brazil

683657-281 A Keyboard for use in 4440s/4441s models in Thailand

screw covers, and screws)

683657-291 A Keyboard for use in 4440s/4441s models in Japan

683657-AB1 A Keyboard for use in 4440s/4441s models in Taiwan

683657-AD1 A Keyboard for use in 4440s/4441s models in South Korea

683657-D61 A Keyboard for use in 4440s/4441s models in India

683657-DB1 A Keyboard for use in 4440s/4441s models in Canada/England

683662-001 N Plastics Kit for use in 4440s/4441s models

683663-001 N Rubber Kit for use with model 4440s/4441s (includes rubber LCD screw covers and rubber feet)

683664-001 N Screw Kit for use in 4440s/4441s models

683665-001 N Speaker assembly for use in 4440s/4441s models

683666-001 N Top cover for use in 4440s/4441s models with a fingerprint reader (includes touchpad)

683667-001 N Top cover for use in 4440s/4441s models without a fingerprint reader (includes touchpad)

684631-001 N 43.9-cm (17.3-inch) display assembly, HD+ anti-glare, with webcam

687696-001 N Heat shield for use in 4540s models

690978-001 A Bottom door for use in 4540s models

690979-001 A Bottom door for use in 4440s/4441s models

691110-001 A Blu-ray ROM DVD±RW SuperMulti DL Drive (includes bezel, bracket, and screws)

34 Chapter 3 Illustrated parts catalog

Spare part
number

691111-001 A DVD±RW and CD-RW Super Multi Double-Layer Combo Drive (includes bezel, bracket, and screws)

692428-001 N Intel Pentium B980 processor, 2.4-GHz, 2-MB L3 cache (includes thermal material)

CSR
flag

Description

Sequential part number listing 35

4 Removal and replacement procedures

Preliminary replacement requirements

Tools required

You will need the following tools to complete the removal and replacement procedures:

● Flat-bladed screwdriver

● Phillips P0 and P1 screwdrivers

Torx T8 screwdriver

●

Service considerations

The following sections include some of the considerations that you must keep in mind during
disassembly and assembly procedures.

NOTE: As you remove each subassembly from the computer, place the subassembly (and all

accompanying screws) away from the work area to prevent damage.

Plastic parts

CAUTION: Using excessive force during disassembly and reassembly can damage plastic parts.

Use care when handling the plastic parts. Apply pressure only at the points designated in the
maintenance instructions.

36 Chapter 4 Removal and replacement procedures

Cables and connectors

CAUTION: When servicing the computer, be sure that cables are placed in their proper locations

during the reassembly process. Improper cable placement can damage the computer.

Cables must be handled with extreme care to avoid damage. Apply only the tension required to
unseat or seat the cables during removal and insertion. Handle cables by the connector whenever
possible. In all cases, avoid bending, twisting, or tearing cables. Be sure that cables are routed in
such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex
cables with extreme care; these cables tear easily.

Drive handling

CAUTION: Drives are fragile components that must be handled with care. To prevent damage to

the computer, damage to a drive, or loss of information, observe these precautions:

Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the
computer is off or in Hibernation, turn the computer on, and then shut it down through the operating
system.

Before handling a drive, be sure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.

Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and
be sure that the optical drive tray is closed.

Handle drives on surfaces covered with at least one inch of shock-proof foam.

Avoid dropping drives from any height onto any surface.

After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.

Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers.

Avoid exposing a drive to temperature extremes or liquids.

If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective
packaging and label the package “FRAGILE.”

Preliminary replacement requirements 37

Grounding guidelines

Electrostatic discharge damage

Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure
determine the degree of sensitivity. Networks built into many integrated circuits provide some
protection, but in many cases, ESD contains enough power to alter device parameters or melt
silicon junctions.

A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or
microcircuitry. Even if the spark is neither felt nor heard, damage may have occurred.

An electronic device exposed to ESD may not be affected at all and can work perfectly throughout a
normal cycle. Or the device may function normally for a while, and then degrade in the internal layers,
reducing its life expectancy.

CAUTION: To prevent damage to the computer when you are removing or installing internal

components, observe these precautions:

Keep components in their electrostatic-safe containers until you are ready to install them.

Use nonmagnetic tools.

Before touching an electronic component, discharge static electricity by using the guidelines
described in this section.

Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.

If you remove a component, place it in an electrostatic-safe container.

The following table shows how humidity affects the electrostatic voltage levels generated by different
activities.

CAUTION: A product can be degraded by as little as 700 V.

Typical electrostatic voltage levels

Relative humidity

Event 10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V

Walking across vinyl floor 12,000 V 5,000 V 3,000 V

Motions of bench worker 6,000 V 800 V 400 V

Removing DIPS from plastic tube 2,000 V 700 V 400 V

Removing DIPS from vinyl tray 11,500 V 4,000 V 2,000 V

Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V

Removing bubble pack from PCB 26,500 V 20,000 V 7,000 V

Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V

38 Chapter 4 Removal and replacement procedures

Packaging and transporting guidelines

Follow these grounding guidelines when packaging and transporting equipment:

● To avoid hand contact, transport products in static-safe tubes, bags, or boxes.

Protect ESD-sensitive parts and assemblies with conductive or approved containers or

●

packaging.

● Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations.

Place items on a grounded surface before removing items from their containers.

●

Always be properly grounded when touching a component or assembly.

●

Store reusable ESD-sensitive parts from assemblies in protective packaging or nonconductive

●

foam.

Use transporters and conveyors made of antistatic belts and roller bushings. Be sure that

●

mechanized equipment used for moving materials is wired to ground and that proper materials
are selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate
electric charges.

Workstation guidelines

Follow these grounding workstation guidelines:

● Cover the workstation with approved static-shielding material.

Use a wrist strap connected to a properly grounded work surface and use properly grounded

●

tools and equipment.

● Use conductive field service tools, such as cutters, screwdrivers, and vacuums.

When fixtures must directly contact dissipative surfaces, use fixtures made only of static-safe

●

materials.

● Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and

Styrofoam.

● Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle

these items only at static-free workstations.

Avoid contact with pins, leads, or circuitry.

●

● Turn off power and input signals before inserting or removing connectors or test equipment.

Preliminary replacement requirements 39

Equipment guidelines

Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.

● When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible

straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper
ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug
connectors, use alligator clips to connect a wrist strap.

When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps)

●

can be used at standing workstations and are compatible with most types of shoes or boots. On
conductive floors or dissipative floor mats, use foot straps on both feet with a minimum of one
megohm resistance between the operator and ground. To be effective, the conductive strips
must be worn in contact with the skin.

The following grounding equipment is recommended to prevent electrostatic damage:

Antistatic tape

●

Antistatic smocks, aprons, and sleeve protectors

●

Conductive bins and other assembly or soldering aids

●

Nonconductive foam

●

● Conductive tabletop workstations with ground cords of one megohm resistance

● Static-dissipative tables or floor mats with hard ties to the ground

Field service kits

●

Static awareness labels

●

Material-handling packages

●

Nonconductive plastic bags, tubes, or boxes

●

● Metal tote boxes

● Electrostatic voltage levels and protective materials

The following table lists the shielding protection provided by antistatic bags and floor mats.

Material Use Voltage protection level

Antistatic plastic Bags 1,500 V

Carbon-loaded plastic Floor mats 7,500 V

Metallized laminate Floor mats 5,000 V

40 Chapter 4 Removal and replacement procedures

Component replacement procedures

This chapter provides removal and replacement procedures.

There are as many as 95 screws and screw locks, in 15 different sizes, that must be removed,
replaced, or loosened when servicing the computer. Make special note of each screw and screw lock
size and location during removal and replacement.

Service tag

When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag.

Product name (1). This is the product name affixed to the front of the computer.

●

Serial number (s/n) (2). This is an alphanumeric identifier that is unique to each product.

●

Part number/Product number (p/n) (3). 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.

Warranty period (4). This number describes the duration (in years) of the warranty period for the

●

computer.

Model description (select models only) (5). This is the model number of the computer.

●

Component replacement procedures 41

Battery

Description Spare part number

9-cell, 93 WHr, 2.8 Ah Li-ion battery 633809-001

6-cell, 47 WHr, 2.2 Ah Li-ion battery 633805-001

Before disassembling the computer, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

Remove the battery:

1. Position the computer upside-down on a flat surface.

2. Slide the battery release latches (1) to release the battery.

NOTE: You can slide the battery release latches simultaneously or one at a time.

3. Tilt the battery upward (2), and remove it from the battery bay (3).

Install the battery by inserting it into the battery bay until you hear a click.

42 Chapter 4 Removal and replacement procedures

Using the optional security screw

Use the optional security screw to lock the service door to the bottom of the computer. When not in
use the security screw can be stored inside the battery bay.

Remove the battery:

To use the security screw:

1. Remove the battery.

2. Remove the security screw from inside the battery bay (1) and insert it (2) to lock the service

door in place.

Component replacement procedures 43

Bottom door

Description Spare part number

Bottom door for use in 4540s models 690978-001

Bottom door for use in 4440s/4441s models 690979-001

Before disassembling the computer, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

Remove the bottom door:

1. Position the computer upside-down on a flat surface with the battery bay toward you.

2. With the battery bay toward you, remove the security screw (1) (if the security screw is being

used). For additional information about the security screw, see

Using the optional security screw

on page 43.

3. Slide the service door release latches (2) to release the service door.

NOTE: You can slide the service door release latches simultaneously or you can slide them

one at a time.

4. Slide the service door towards the front of the computer (3) and then lift it (4) away from the

computer.

Reverse the removal procedures to install the bottom door.

44 Chapter 4 Removal and replacement procedures

SIM

NOTE: This section applies only to computer models with WWAN capability.

NOTE: The SIM is provided by the end-user as a security measure for the WWAN module. The SIM

should be removed, placed into a static-dissipative container, and then replaced when the computer
is reassembled.

Before removing the SIM, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Remove the SIM:

1. Press in on the SIM (1). (The module is partially ejected from the SIM slot.)

2. Remove the SIM (2) from the SIM slot.

Reverse this procedure to install the SIM.

Battery on page 42).

Bottom door on page 44).

Component replacement procedures 45

Optical drive

NOTE: All optical drive spare part kits include an optical drive bezel, bracket, and screws.

Description Spare part number

For use in 4540s models

DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 683500-001

Blu-ray ROM DVD±RW SuperMulti DL Drive 683499-001

For use in 4440s/4441s models

DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 691111-001

Blu-ray ROM DVD±RW SuperMulti DL Drive 691110-001

Before removing the optical drive, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

Remove the optical drive:

1. Position the computer upside-down.

2. Remove the Phillips PM2.5×6.0 screw (1) that secures the optical drive to the computer.

3. Push the optical drive tab (2) to release the optical drive from the computer.

46 Chapter 4 Removal and replacement procedures

4. Remove the optical drive (3) from the computer.

Reverse this procedure to install an optical drive.

Component replacement procedures 47

Hard drive

NOTE: All hard drive spare part kits include a hard drive bracket and screws.

Description Spare part number

750-GB, 7200-rpm hard drive 633252-001

750-GB, 5400-rpm hard drive 634250-001

640-GB, 5400-rpm hard drive 669300-001

500-GB, 7200-rpm hard drive 634925-001

500-GB, 5400-rpm hard drive (4440s/4441s models only) 669299-001

320-GB, 7200-rpm hard drive 641672-001

320-GB, 5400-rpm hard drive (4440s/4441s models only) 622643-001

128-GB solid-state drive 684253-001

Hard Drive Hardware Kit (includes hard drive bracket and screws) 683488-001

Before disassembling the computer, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

NOTE: Instructions for removing the hard drive are imprinted on the service door.

Remove the hard drive:

1. Position the computer upside-down.

2. Remove the four Phillips PM2.0×4.0 screws (1) that secure the hard drive to the computer.

48 Chapter 4 Removal and replacement procedures

3. Pull the Mylar tab on the hard drive (2) toward the side of the computer to disengage the hard

drive from the connector, and then lift the hard drive out of the hard drive bay.

NOTE: Model 4540s shown.

4. If it is necessary to replace the hard drive cover, lift the Mylar tab to unlock it.

5. Remove the four Phillips PM3.0×3.0 hard drive cover screws (1) that secure the cover to the

hard drive.

Component replacement procedures 49

6. Lift the top of the Mylar cover (2) from the drive, and then remove the cover from the hard drive

(3).

Reverse this procedure to reassemble and install the hard drive.

Memory modules

NOTE: Primary and expansion memory is installed in a stacked configuration in the bottom of the

computer.

Description Spare part number

2-GB (PC3-12800, 1600-MHz, DDR3) 652972-001

4-GB (PC3-12800, 1600-MHz, DDR3) 641369-001

Update BIOS before adding memory modules

Before adding new memory, make sure you update the computer to the latest BIOS.

CAUTION: Failure to update the computer to the latest BIOS prior to installing new memory may

result in various system problems.

To update BIOS:

1. Navigate to

www.hp.com.

2. Click Support & Drivers > click Drivers & Software.

3. In the Enter a product name/number box, type the computer model information, and then click

Search.

4. Click the link for the computer model.

5. Select the operating system, and then click Next.

6. Under Step 2: Select a Download, click the BIOS link.

50 Chapter 4 Removal and replacement procedures

7. Click the link for the most recent BIOS.

8. Click the Download button, and then follow the on-screen instructions.

Before removing the memory module, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

Remove the memory module:

1. Position the computer upside-down.

2. Spread the retaining tabs (1) on each side of the memory module slot to release the memory

module. (The edge of the module opposite the slot rises away from the computer.)

3. Remove the memory module (2) by pulling the module away from the slot at an angle.

NOTE: Memory modules are designed with a notch to prevent incorrect insertion into the

memory module slot.

NOTE: The computer uses two memory sockets. The top socket houses the expansion

memory module and the bottom socket houses the primary memory module. The removal
procedure is the same for both memory sockets.

Reverse this procedure to install a memory module.

Component replacement procedures 51

WWAN module

CAUTION: The WWAN module and the WLAN module are not interchangeable.

Description Spare part number

Ericsson F5321 HSPA+ with GPS 668969-001

Sierra MC8355 HSPA/CDMA with GPS 634400-001

Before removing the WWAN module, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

Remove the WWAN module:

1. Position the computer upside-down.

2. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.

NOTE: The red WWAN antenna cable is connected to the WWAN module “Main” terminal. The

blue WWAN antenna cable is connected to the WWAN module “Aux” terminal.

3. Remove the two Phillips PM2.0×3.0 screws (2) that secure the WWAN module to the computer.

(The edge of the module opposite the slot rises away from the computer.)

52 Chapter 4 Removal and replacement procedures

4. Remove the WWAN module (3) by pulling the module away from the slot at an angle.

NOTE: WWAN modules are designed with a notch to prevent incorrect insertion.

Figure 4-1 Removing the WWAN module

NOTE: If the WWAN antennas are not connected to the terminals on the WWAN module, the

protective sleeves must be installed on the antenna connectors, as shown in the following
illustration.

Reverse this procedure to install the WWAN module.

Component replacement procedures 53

WLAN/Bluetooth combo card

The computer uses a card that provides both WLAN and Bluetooth functionality.

CAUTION: The WLAN module and the WWAN module are not interchangeable.

Description Spare part number

Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter 655795-001

Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter 657325-001

Intel Centrino Wireless-N 2230 670290-001

Intel Centrino Advanced-N 6235 670292-001

Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC 670691-001

Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter 675794-001

Before removing the WLAN module, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

Remove the WLAN module:

1. Position the computer upside-down.

2. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.

NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal

labeled “1”. The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal
labeled “2”. If the computer is equipped with an 802.11a/b/g/n WLAN module, the yellow WLAN
antenna cable connects to the middle terminal on the WLAN module.

3. Remove the two Phillips PM2.0×3.0 screws (2) that secure the WLAN module to the computer.

(The edge of the module opposite the slot rises away from the computer.)

54 Chapter 4 Removal and replacement procedures

4. Remove the WLAN module (3) by pulling the module away from the slot at an angle.

NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.

NOTE: If the WLAN antennas are not connected to the terminals on the WLAN module, the

protective sleeves must be installed on the antenna connectors, as shown in the following
illustration.

Reverse this procedure to install the WLAN module.

Component replacement procedures 55

Keyboard

NOTE: For a detailed list of available keyboards, see Sequential part number listing on page 30.

Description Spare part number

Keyboard for use in 4540s models 683491-xxx

Keyboard for use in 4440s/4441s 683657-xxx

Before removing the keyboard, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

the computer on, and then shut it down through the operating system.

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the bottom door (see

Battery on page 42).

Bottom door on page 44).

Remove the keyboard:

1. Position the computer upside-down with the front toward you.

2. For model 4540s, remove the three Phillips PM2.5×6.0 screws that secure the keyboard to the

computer.

56 Chapter 4 Removal and replacement procedures

3. For model 4440s/4441s, remove the two Phillips PM2.5×6.0 screws that secure the keyboard to

the computer.

4. Position the computer right-side up with the front toward you.

5. Open the computer as far as possible.

6. Slide the keyboard downward toward the palm rest (1).

7. Lift the top of the keyboard at an angle (2), and then pull the keyboard up to remove it from the

palm rest(3).

NOTE: Only pull the keyboard up enough to release it from the computer and flip it over onto

the palm rest. Under the keyboard, the cable is connected to the system board.

Component replacement procedures 57

8. Rotate the keyboard until it rests on the palm rest (1), and then disconnect the keyboard cable

by lifting the keyboard connector latch (2), and then disconnecting the keyboard cable from the
system board (3).

9. Remove the keyboard.

Reverse this procedure to install the keyboard.

58 Chapter 4 Removal and replacement procedures

Heat shield

Description Spare part number

Heat shield for use in 4540s models 687696-001

Heat shield for use in 4440s/4441s models 683497-001

Before removing the heat shield, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

the computer on, and then shut it down through the operating system.

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

Bottom door on page 44).

Keyboard on page 56)

Remove the heat shield:

1. Position the computer upside-down with the front toward you.

2. If disassembling model 4440s/4441s, skip to step 7.

3. For model 4540s, remove the three Phillips PM2.5×6.0 screws (1) that secure the heat shield to

the computer.

4. Slide the shield toward the inside of the computer (2).

5. Rotate the top of the shield upward (3).

Component replacement procedures 59

6. Remove the heat shield from the computer (4).

7. For model 4440s/4441s, remove the three Phillips PM2.0×3.0 screws (1) that secure the heat

shield to the computer.

8. Rotate the top of the shield upward (2).

9. Lift the heat shield from the computer (3).

Reverse this procedure to install the heat shield.

60 Chapter 4 Removal and replacement procedures

Fan

Description Spare part number

Fan for use in 4540s models 683484-001

Fan for use in 4440s/4441s models 683651-001

Before removing the fan, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Heat shield (see

Bottom door on page 44).

Keyboard on page 56)

Heat shield on page 59)

Remove the fan:

1. Position the computer upside-down.

2. Disconnect the fan cable (1) from the system board.

3. Remove the two Phillips PM2.5×5.0 screws (2) that secure the fan to the system board.

Component replacement procedures 61

4. Remove the fan from the system board (3).

Reverse this procedure to install the fan.

NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-in) clearance on the left side of

the computer.

The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is
designed to turn on automatically when high temperature conditions exist. These conditions are
affected by high external temperatures, system power consumption, power management/battery
conservation configurations, battery fast charging, and software requirements. Exhaust air is
displaced through the ventilation grill located on the left side of the computer.

62 Chapter 4 Removal and replacement procedures

Heat sink

All heat sink spare part kits include replacement thermal material.

Description Spare part number

For use in 4540s models:

Heat sink for use in models with UMA graphics 683489-001

Heat sink for use in models with discrete graphics 683490-001

For use in 4440s/4441s models:

Heat sink for use in models with discrete graphics 683655-001

Heat sink for use in models with UMA graphics 683656-001

Before removing the heat sink, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

the computer on, and then shut it down through the operating system.

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Heat shield (see

d. Fan (see

Fan on page 61)

Bottom door on page 44).

Keyboard on page 56)

Heat shield on page 59)

Remove the heat sink:

1. Position the computer upside-down.

2. To remove the discrete heat sink, in the order indicated, loosen the six captive Phillips screws

(1) that secure the heat sink to the system board.

Component replacement procedures 63

3. Lift the left side of the heat sink up at an angle (2), and then pull it away from the side of the

computer to remove it (3).

4. To remove the UMA heat sink, in the order indicated, loosen the four captive Phillips screws (1)

that secure the heat sink to the system board.

5. Lift the left side of the heat sink up at an angle (2), and then pull it away from the side of the

computer to remove it (3).

NOTE: For discrete models, thoroughly clean thermal material from the surfaces of the system

board components (1)(3) and the heat sink (2)(4) each time you remove the heat sink. All heat sink
and processor spare part kits include thermal material.

64 Chapter 4 Removal and replacement procedures

NOTE: For UMA models, thoroughly clean thermal material from the surface of the system board

(1) and heat sink (2) each time you remove the heat sink. All heat sink and processor spare part kits

include thermal material.

Reverse this procedure to install the heat sink.

Component replacement procedures 65

Processor

NOTE: All processor spare part kits include replacement thermal material.

Description Spare part number

Intel Core i7 processor, Quad Core:

3612QM, 2.1-GHz processor with 6-MB L3 cache 680647-001

Intel Core i5 processors, Dual Core:

3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease) 681953-001

3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease) 681952-001

2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease) 676359-001

Intel Core i3 processors, Dual Core:

3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 682417-001

2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease) 677152-001

2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 653340-001

Intel Pentium processor, Dual Core:

B980, 2.4-GHz, with 2-MB L3 cache 692428-001

B970, 2.3-GHz, with 2-MB L3 cache 676785-001

Intel Celeron processor:

B840, 1.9-GHz, with 2-MB L3 cache 664663-001

Before removing the processor, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Heat shield (see

Bottom door on page 44).

Keyboard on page 56)

Heat shield on page 59)

d. Fan (see

e. Heat sink (see

Fan on page 61)

Heat sink on page 63)

66 Chapter 4 Removal and replacement procedures

Remove the processor:

1. Position the computer upside-down.

2. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn

counterclockwise until you hear a click.

3. Lift the processor (2) straight up and remove it.

NOTE: The gold triangle (3) on the processor must be aligned with the triangle embossed on

the processor slot when you install the processor.

Reverse this procedure to install the processor.

Top cover

NOTE: All top covers include the touchpad assembly.

Description Spare part number

Top cover for use in model 4540s:

With a fingerprint reader 683506-001

Without a fingerprint reader 683507-001

For use in model 4440s/4441s:

With a fingerprint reader 683666-001

Without a fingerprint reader 683667-001

Before removing the top cover, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

2. Disconnect all external devices connected to the computer.

the computer on, and then shut it down through the operating system.

Component replacement procedures 67

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Memory modules (see

c. WLAN/Bluetooth module (see

d. WWAN module (see

e. Keyboard (see

f. Heat shield (see

Bottom door on page 44).

Memory modules on page 50)

WLAN/Bluetooth combo card on page 54)

WWAN module on page 52)

Keyboard on page 56)

Heat shield on page 59)

Remove the top cover:

1. Position the computer upright with the front toward you.

2. For 4540s models, disconnect the following cables from the system board:

(1) Speaker cable

(2) Function board/Power button board cable

(3) Fingerprint reader board cable

68 Chapter 4 Removal and replacement procedures

3. For 4440s/4441 models, disconnect the following cables from the system board:

(1) Function board/Power button board cable

(2) Finger print reader board cable

4. Position the computer upside down.

Component replacement procedures 69

5. For 4540s models, remove the following screws that secure the top cover to the computer:

(1) 4 rubber screw covers from the corners of the computer

(2) 11 Torx T8M2.5×6.0 screws

70 Chapter 4 Removal and replacement procedures

6. For 4440s/4441s models, remove the following screws that secure the top cover to the

computer:

(1) 4 rubber screw covers from the corners of the computer

(2) 9 Torx T8M2.5×6.0 screws

(3) 1 Phillips PM2.5×3.0 screw from the hard drive bay

Component replacement procedures 71

7. For 4540s models, remove the following screws that secure the top cover to the computer:

(1) 2 Phillips PM2.0×2.5 screws from the optical drive bay

(2) 3 Phillips PM2.0×2.0 broadhead screws from the battery bay

8. For 4440s/4441s models, remove the following screws that secure the top cover to the

computer:

(1) 3 Phillips PM2.0×2.5 screws from the optical drive bay

(2) 2 Phillips PM2.0×2.0 screws from the battery bay

72 Chapter 4 Removal and replacement procedures

9. Position the computer upright.

10. For 4540s models, remove the two 2 Torx T8M2.5×6.0 screws screws that secure the top cover

to the computer.

11. For 4440s/4441s models, remove the three 2 Torx T8M2.5×6.0 screws screws that secure the

top cover to the computer.

Component replacement procedures 73

12. Turn the computer upright and open it as far as possible.

13. Pry the top of the top cover loose from the computer (1).

14. Lift the top cover up slightly (2), enough not to inadvertently disconnect the touch pad cable from

the system board.

15. Lift the top cover upward enough to access the audio board cable (1), and the disconnect the

cable from the system board (2).

16. Remove the top cover from the computer.

Reverse this procedure to install the top cover.

74 Chapter 4 Removal and replacement procedures

Fingerprint reader board

NOTE: Fingerprint assembly spare part kits include cable, bracket, and screws.

Description Spare part number

Fingerprint reader board for use in 4540s models 683485-001

Fingerprint reader board for use in 4440s/4441s models 683652-001

Before removing the fingerprint reader board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

Remove the fingerprint reader board:

1. Position the top cover upside-down with the front toward you.

2. Remove the Phillips PM2.0×4.0 screw (1) that secures the fingerprint reader board bracket to

the top cover.

3. Slide the bracket toward the bottom of the top cover (2), and then lift it off the top cover (3).

Component replacement procedures 75

4. Remove the reader and cable assembly from the top cover (4).

Reverse this procedure to install the fingerprint reader board.

Speaker assembly

NOTE: In 4540s models, the speakers are mounted to the bottom of the top cover.

NOTE: In 4440s/4441s models, the speakers are mounted to the base enclosure.

Description Spare part number

Speaker assembly for use in 4540s models 683505-001

Speaker assembly for use in 4440s/4441s models 683665-001

Before removing the speaker assembly, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

76 Chapter 4 Removal and replacement procedures

4. Remove the battery (see Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

Remove the speaker assembly:

1. If disassembling model 4440s/4441s, skip to step 7.

2. Position the top cover upside-down with the front toward you.

3. For model 4540s, disconnect the speaker cable from the system board (1) and remove the

cables from under the power button board cable and from the clips.

4. Remove the cables from under the power button board cable and from the clips.

5. Remove the two Phillips PM2.0×7.0 screws (2) that secure the speakers to the computer.

6. Lift the opposite end of each speaker away from the tab and up at an angle, and then pull the

speaker away from tab and up and off the top cover (3).

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

7. For model 4440s/4441s, position the computer upright and open as far as possible.

8. Disconnect the speaker cable from the system board (1).

Component replacement procedures 77

9. Remove the two broadhead PM2.0×3.0 screws (2) that secure the speakers to the computer,

and the remove the speakers from the computer (3).

Reverse these procedures to install the speaker assembly.

78 Chapter 4 Removal and replacement procedures

Function board/Power button board assembly

Description Spare part number

Function board/Power button board assembly for use in 4540s models (includes cable) 683486-001

Function board/Power button board for use in 4440s/4441s models (includes cable) 683653-001

Before removing the function board and power button board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

d. Speaker (see

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

Speaker assembly on page 76)

Remove the function board/power button board assembly:

1. Position the top cover upside-down with the front toward you.

2. Remove the two Phillips PM2.0×4.0 screws (1) that secure the boards to the top cover.

3. Remove the function board from the top cover (2).

Component replacement procedures 79

4. Remove the power button board from the top cover. (3).

Reverse this procedure to install the function board/power button board assembly.

80 Chapter 4 Removal and replacement procedures

Audio board

Description Spare part number

Audio board (includes cable) 683475-001

Before removing the audio board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

Remove the audio board:

1. Position the top cover upside-down.

2. Disconnect the smaller touchpad button cable (1).

3. Remove the Phillips PM2.0×4.0 screw (2) that secures the audio board to the computer.

4. Rotate the top of the board upward, pull the board away from the connectors (to remove them

from top cover holes), and then lift the board off the top cover (3).

Component replacement procedures 81

Reverse this procedure to install the audio board.

USB connector assembly

The USB connector assembly is included in the Cable Kit, spare part number 683477-001 for 4540s
models and 683640-001 for 4440s/4441s models.

Before removing the USB connector assembly, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

Remove the USB connector assembly:

1. Position the computer upright.

2. Disconnect the cable from the system board (1).

3. Remove the cables from the routing path (2).

Battery on page 42).

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

82 Chapter 4 Removal and replacement procedures

4. Remove the two Phillips PM2.5×4.5 screws (4440s/4441s models) (3) that secure the USB

connector to the computer.

NOTE: Model 4540s has only one screw securing the USB connector. Model 4440s/4441s has

two screws.

Reverse this procedure to install the USB connector assembly.

Component replacement procedures 83

Battery cable

The battery cable is included in the Cable Kit, spare part number 683477-001 for 4540s models,
684640-001 for 4440s/4441s models.

Before removing the battery cable, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

5. Remove the following components:

a. Bottom door (see

b. Keyboard (see

c. Top cover (see

Remove the battery cable:

1. Position the computer upright.

2. Disconnect the battery cable connector from the system board (1).

3. Remove the two Phillips PM2.5×4.5 screws that secure the cable to the computer (2).

4. Remove the battery cable from the computer (3).

Battery on page 42).

Bottom door on page 44).

Keyboard on page 56)

Top cover on page 67)

Reverse this procedure to install the battery cable.

84 Chapter 4 Removal and replacement procedures

System board

NOTE: All system board spare part kits include replacement thermal material.

Description Spare part number

For use in 4540s models with:

UMA graphics with WWAN 683496-001

UMA graphics without WWAN 683495-001

1-GB of discrete graphics memory 683493-001

2-GB of discrete graphics memory 683494-001

System board for use in 4440s/4441s models with:

1-GB discrete graphics 683493-001

2-GB discrete graphics 683494-001

UMA graphics without WWAN 683495-001

UMA graphics and with WWAN 683496-001

Before removing the system board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Hard drive (see

c. Optical drive (see

d. Keyboard (see

e. Heat shield (see

f. Fan (see

Fan on page 61)

g. Heat sink (see

h. Top cover (see

Bottom door on page 44).

Hard drive on page 48)

Optical drive on page 46)

Keyboard on page 56)

Heat shield on page 59)

Heat sink on page 63)

Top cover on page 67)

Component replacement procedures 85

When replacing the system board, be sure to remove the following components from the defective
system board and install on the replacement system board:

Memory module (see

●

SIM (see

●

WLAN/Bluetooth module (see

●

WWAN module (see

●

Processor (see

●

SIM on page 45)

Memory modules on page 50)

WLAN/Bluetooth combo card on page 54)

WWAN module on page 52)

Processor on page 66)

Remove the system board:

1. Position the computer upright with the front toward you.

2. Disconnect the following cables from the system board (model 4440s/4441s shown): .

(1) Power cable

●

(2) Display cable

●

(3) Battery connector cable

●

(4) USB connector cable

●

3. If disassembling 4440s/4441s models, skip to step 7.

4. For model 4540s, remove the three Phillips PM2.5×4.5 screws (1) that secure the system board

to the computer. Note that two of the screws secure the optical drive connector board and hard
drive connector board.

5. Disconnect the display cable from the system board (if necessary).

86 Chapter 4 Removal and replacement procedures

6. Lift the right side of the system board up at an angle (2), and then lift it up and off the computer.

7. For 4440s/4441s models, remove the two Phillips PM2.5×4.5 screws (1) that secure the system

board to the computer, lift the right side of the board up at an angle (2), and then pull the board
up and toward the right to remove it from the computer (3).

Reverse this procedure to install the system board.

Component replacement procedures 87

RTC battery

Description Spare part number

RTC battery 683502-001

Before removing the RTC battery, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Hard drive (see

c. Optical drive (see

d. Keyboard (see

e. Heat shield (see

f. Fan (see

Fan on page 61)

g. Heat sink (see

h. Top cover (see

i. System board (see

Bottom door on page 44).

Hard drive on page 48)

Optical drive on page 46)

Keyboard on page 56)

Heat shield on page 59)

Heat sink on page 63)

Top cover on page 67)

System board on page 85)

Remove the RTC battery:

1. Position the system board upside-down.

2. Disconnect the battery cable from the system board (1).

88 Chapter 4 Removal and replacement procedures

3. Lift the battery from the system board (2).

Reverse this procedure to install the RTC battery.

Component replacement procedures 89

Optical drive extension board (4540s models only)

Description Spare part number

Optical drive extension board 683498-001

Before removing the optical drive extension board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Hard drive (see

c. Optical drive (see

d. WLAN/Bluetooth module (see

e. WWAN module (see

f. Keyboard (see

g. Heat shield (see

h. Fan (see

Fan on page 61)

i. Heat sink (see

j. Top cover (see

k. System board (see

Bottom door on page 44).

Hard drive on page 48)

Optical drive on page 46)

WLAN/Bluetooth combo card on page 54)

WWAN module on page 52)

Keyboard on page 56)

Heat shield on page 59)

Heat sink on page 63)

Top cover on page 67)

System board on page 85)

Remove the optical drive extension board:

1. Lift the right side of the system board up.

90 Chapter 4 Removal and replacement procedures

2. Pull the optical drive extension board straight away from the system board.

Reverse this procedure to install the optical drive extension board.

Component replacement procedures 91

Hard drive extension board (4540s models only)

Description Spare part number

Hard drive extension board 683487-001

Before removing the hard drive extension board, follow these steps:

1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn

the computer on, and then shut it down through the operating system.

2. Disconnect all external devices connected to the computer.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,

and then unplugging the AC adapter from the computer.

4. Remove the battery (see

Battery on page 42).

5. Remove the following components:

a. Bottom door (see

b. Hard drive (see

c. Optical drive (see

Bottom door on page 44).

Hard drive on page 48)

Optical drive on page 46)

d. WLAN/Bluetooth module (see

e. WWAN module (see

f. Keyboard (see

g. Heat shield (see

h. Fan (see

Fan on page 61)

i. Heat sink (see

j. Top cover (see

k. System board (see

WWAN module on page 52)

Keyboard on page 56)

Heat shield on page 59)

Heat sink on page 63)

Top cover on page 67)

System board on page 85)

Remove the hard drive extension board:

WLAN/Bluetooth combo card on page 54)

1. Lift the right side of the system board up.

92 Chapter 4 Removal and replacement procedures