Contents

Important safety information

.

 

v

Accessing system board components and drives .

. 22

Conditions that require immediate action . . .

.

. v

Identifying parts on the system board . . . .

. 23

General safety guidelines

. vi

Installing memory

.

24

Service and upgrades

. vi

Installing PCI adapters

.

25

Static electricity prevention

. vii

Installing internal drives

.

26

Power cords and power adapters

. viii

Drive specifications

.

27

Voltage-selection switch

. viii

Installing a drive in bay 2

.

28

Extension cords and related devices . . . .

. ix

Installing a diskette drive in bay 3

.

30

Plugs and outlets

. ix

Security features

.

32

External devices

. ix

Integrated cable lock

.

33

Batteries

. ix

Password protection

.

33

Heat and product ventilation

.

. x

Changing the battery

.

33

Operating environment

. xi

Erasing a lost or forgotten password (clearing

 

 

Electrical current safety information

. xi

CMOS)

.

34

Lithium battery notice

. xii

Closing the cover and connecting the cables . .

.

35

Modem safety information

. xii

Chapter 4. Recovering software . . .

.

37

Laser compliance statement

. xiii

Power supply statement

. xiii

Creating and using the Product Recovery disc . .

. 37

Data safety

. xiv

Performing backup and recovery operations . .

.

38

Cleaning and maintenance

. xiv

Using the Rescue and Recovery workspace . . .

. 39

Additional safety information

. xiv

Creating and using rescue media

.

40

Introduction

. xv

Creating and using a Recovery Repair diskette .

. 41

Recovering or installing device drivers . . . .

.

42

 

 

 

 

Setting a rescue device in the startup sequence .

. 43

Chapter 1. Arranging your workspace .

. 1

Solving recovery problems

.

43

Comfort

.

1

Chapter 5. Using the Setup Utility . .

.

45

Glare and lighting

.

.

1

Starting the Setup Utility program

.

45

Air circulation

.

.

2

Electrical outlets and cable lengths

.

.

2

Viewing and changing settings

.

45

 

 

 

 

Using passwords

.

45

Chapter 2. Setting up your computer .

. 3

Password considerations

.

45

Connecting your computer

.

.

3

User Password

.

46

Administrator Password

.

46

Turning on power

.

.

8

Setting, changing, and deleting a password . . . 46

Finishing the software installation

.

.

8

Using Security Profile by Device

.

46

Completing important tasks

.

.

8

Selecting a startup device

.

47

Updating your operating system

.

.

9

Selecting a temporary startup device . . . .

.

47

Installing other operating systems

.

.

9

Changing the startup device sequence . . .

. 47

Updating your antivirus software

.

.

9

Advanced settings

.

48

Shutting down the computer

.

.

9

Exiting from the Setup Utility program . . . .

. 48

 

 

 

 

Chapter 3. Installing options . . . .

.

11

Chapter 6. Updating system programs

 

49

Features

.

 

11

 

 

Using system programs

.

49

Available options

.

 

14

 

Updating (flashing) BIOS from a diskette or

 

 

Specifications

.

 

15

 

 

 

CD-ROM

.

49

Supported operating positions

.

 

16

 

Updating (flashing) BIOS from your operating

 

 

Tools required

.

 

16

 

 

 

system

.

50

Handling static-sensitive devices

.

 

16

 

Recovering from a POST/BIOS update failure . .

. 50

Installing external options

.

 

17

 

 

 

 

Locating controls and connectors on the front of

 

 

Chapter 7. Troubleshooting and

 

 

your computer

.

 

17

 

 

 

diagnostics

.

53

Locating connectors on the rear of your computer 18

Obtaining device drivers

.

 

19

Basic troubleshooting

.

53

Opening the cover

.

 

20

Diagnostic programs

.

54

Locating components

.

 

21

PC-Doctor for Windows

.

55

© Lenovo 2005, 2007. Portions © IBM Corp. 2005.

iii

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Lenovo TC A55-9636, 9638, 9643, 9644, 9645, 9640 manual Contents

TC A55-9636, 9640, 9645, 9644, 9643 specifications

Lenovo has consistently been at the forefront of innovation in the computing world, with a range of laptops and desktops that cater to a variety of needs and preferences. Among their popular offerings are the Lenovo 9640, 9643, TC A55-9636, 9644, and 9645. Each of these models is designed to provide exceptional performance, reliability, and user-friendly experience, making them appealing choices for both personal and business use.

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