Contents

Important safety information

v

Service and upgrades

v

Static electricity prevention

v

Power cords and power adapters

vi

Extension cords and related devices

vi

Plugs and outlets

vii

External devices

vii

Heat and product ventilation

vii

Operating environment

viii

Modem safety information

viii

Laser compliance statement

ix

Power supply statement

ix

Cleaning and maintenance

ix

Chapter 1. Product overview

1

Features

1

Specifications

4

Software overview

5

Software provided by Lenovo

5

Adobe Reader

6

Antivirus software

6

Locations

6

Locating connectors, controls, and indicators

 

on the front of your computer

6

Locating connectors on the rear of your

 

computer

8

Locating components

9

Locating parts on the system board . . . .

10

Locating internal drives

12

Machine type and model label

13

Chapter 2. Using your computer . . .

15

Frequently asked questions

15

Using the keyboard

15

Using Windows shortcut keys

15

Using the blue ThinkVantage button . . . .

16

Using the wheel mouse

16

Adjusting audio

16

About your computer audio

16

Setting the volume from the desktop . . . .

17

Setting the volume from Control Panel . . .

17

Using CDs and DVDs

17

Handling and storing CD and DVD media . .

17

Playing a CD or DVD

18

Recording a CD or DVD

18

Chapter 3. You and your computer . .

19

Accessibility and comfort

19

Arranging your workspace

19

Comfort

19

Glare and lighting

20

Air circulation

20

Electrical outlets and cable lengths

20

Register your computer with Lenovo

21

Moving your computer to another country or

 

region

21

Replacement power cords

21

Chapter 4. Security

23

Security features

23

Locking the computer cover

23

Installing a padlock

24

Attaching an integrated cable lock

26

Using passwords

26

BIOS passwords

26

Windows passwords

27

Using and understanding firewalls

27

Protecting data against viruses

27

Chapter 5. Installing or replacing

 

hardware

29

Handling static-sensitive devices

29

Installing or replacing hardware

29

Installing external options

29

Removing the computer cover

30

Removing and reinstalling the front bezel . .

31

Installing or replacing a PCI card

32

Installing or replacing a memory module . . .

34

Installing or replacing the optical drive . . .

37

Replacing the card reader

40

Replacing the battery

42

Replacing the heat sink and fan assembly . .

43

Replacing the hard disk drive fan assembly .

45

Replacing the rear fan assembly

46

Installing or replacing a hard disk drive . . .

48

Installing or replacing a hard disk drive

 

enablement module

52

Replacing the front audio and USB

 

assembly

53

Replacing the internal speaker

54

Replacing the keyboard or mouse

55

Completing the parts replacement

56

Chapter 6. Recovery information . . .

59

© Copyright Lenovo 2012

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Lenovo 4223, 4228, 4229 manual Contents

4229, 4223, 4228 specifications

Lenovo has long been recognized for its commitment to producing high-quality computing solutions, and the ThinkPad line is no exception. Among its various models, the Lenovo ThinkPad series 4228, 4223, and 4229 stand out for their robust features and reliable performance, making them ideal choices for business and professional use.

The Lenovo ThinkPad 4228 series is engineered with a focus on durability and performance. One of its key features is the powerful Intel Core processor range, which ensures that users can manage demanding applications and multitask efficiently. Alongside this, the device typically comes equipped with ample RAM, providing speed and responsiveness that enhances productivity.

Moving to the ThinkPad 4223, it streamlines user experience with advanced connectivity options. The inclusion of multiple USB ports, HDMI, and Ethernet capabilities allows for seamless integration with various devices and networks. The 4223 model often houses a backlit keyboard, enabling users to work effortlessly in low-light environments. This model puts a strong emphasis on portability, making it a reliable companion for professionals on the move.

The ThinkPad 4229 takes connectivity a step further by offering options like Wi-Fi 6 and Bluetooth, ensuring fast and stable connections whether in the office or on the go. This model is often equipped with a higher resolution display, contributing to a better viewing experience for video conferencing and presentations. Its extended battery life is a notable feature, allowing users to remain productive without the constant need for recharging.

All three models in the 422x series boast Lenovo’s robust security features, including fingerprint readers and TPM (Trusted Platform Module), which safeguard sensitive data against unauthorized access. Furthermore, the reputation of Lenovo ThinkPads for their exceptional keyboard layout ensures that users can type comfortably over extended periods, reducing strain and increasing efficiency.

In summary, the Lenovo ThinkPad 4228, 4223, and 4229 models represent a blend of power, durability, and user-friendly design. With their focus on connectivity, performance, and security, these laptops cater perfectly to the needs of professionals and businesses, confirming Lenovo's status as a leading manufacturer in the world of computing technology. Whether you need a rugged workhorse for heavy tasks or a portable device for meetings, the ThinkPad series provides versatile solutions to meet any requirement.