IBM THINKPAD 600, THINKPAD 600E Users Guide

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Where to Find Information ...................... viii

Chapter 1. Using Your Computer Outside Your Home

Country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Changing the Date and Time ..................... 2

Power Cord Requirements ...................... 2

Selecting the Country for the Internal ThinkPad Modem ..... 3

International Hardware Service Information ............. 4

Chapter 2. Using Audio and Modem Features ......... 5

Using the Audio Features ....................... 6

Using the 3D Sound Retrieval System (SRS) Function .... 7

Using the Modem Features ...................... 9

Using the 56-Kbps Modem .................... 11

Telephony Features . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 3. Protecting Your Computer ............. 15

Using Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Using the Personalization Editor .................. 16

Using Mechanical Locks ....................... 16

Chapter 4. Using Your Computer with a Battery Pack ... 19

Using the Battery Pack ....................... 20

Charging the Battery Pack .................... 20

Monitoring the Battery Status .................. 20

Saving Battery Power ........................ 24

Using the Power Management Modes ............. 24

Customizing Power Management ................ 28

Considerations When Using a Power Management Mode .. 30

Using Other Battery-Saving Methods .............. 35

Chapter 5. Using Your Computer with a PC Card ...... 37

Using a PC Card ........................... 39

PC Card Types .......................... 39

PC Card Interface ......................... 41

PC Card Support Software ..................... 42

Using a PC Card in Windows 95 (with CardWorks) ....... 45

Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

PC Card Information ....................... 47

Stopping the PC Card ...................... 50

Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Using a PC Card in Windows NT (with CardWizard) ...... 51

Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

PC Card Information ....................... 52

Stopping the PC Card ...................... 53

Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Using ATA PC Cards ....................... 54

Power Management Support .................. 54

Using a PC Card in Windows 3.11 (with CardWizard) ...... 56

Self-Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Formatting PC Cards ....................... 58

Using a PC Card in OS/2 (with PC Card Director) ........ 61

Stopping the PC Card ...................... 62

Using the Auto Configurator Utility ............... 63

Updating the CONFIG.SYS File ................. 66

PCMCIA Storage Card Device Driver ............. 69

Checking the Allocated Resources for the PC Card ..... 72

Avoiding PC Card Resource Conflicts ............. 73

Using a PC Card in DOS (with CardSoft) ............. 75

CARDINFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Using the Configuration Utility .................. 77

Using Storage PC Cards ..................... 79

Chapter 6. Resolving System Resource Conflicts ...... 83

Sharing an IRQ between ThinkPad Modem Devices ...... 83

Default IRQ Assignments ...................... 86

System Resources and IRQs .................... 86

Chapter 7. Solving Computer Problems ............ 91

Frequently Asked Questions .................... 92

Hints, Tips, and Limitations ..................... 99

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . 101

Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . 102

Error Codes or Messages .................... 103

No Error Codes or Messages .................. 107

Input Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Suspend or Hibernation Problems ............... 109

LCD Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

An Indicator Problem ....................... 114

iv IBM ThinkPad 600 Online Book

Battery Problems . . . . . . . . . . . . . . . . . . . . . . . . . 114

CD-ROM Drive Problems .................... 114

Infrared Communication Problems ............... 116

Audio or Telephony Problems .................. 117

A Universal Serial Bus (USB) Problem ............. 117

Modem Problems . . . . . . . . . . . . . . . . . . . . . . . . . 118

PC Card Problems ........................ 120

Docking Station Problems .................... 122

A Printer Problem ......................... 124

External Monitor Problems .................... 124

A Port Replicator Problem .................... 126

Other Option Problems ...................... 126

Software Problems . . . . . . . . . . . . . . . . . . . . . . . . 128

Other Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Testing Your Computer ....................... 130

Recovering Lost or Damaged Software .............. 132

Using the Diskette Factory .................... 133

Using the ThinkPad Customization CD ............. 134

Using the Recovery CD ..................... 134

Chapter 8. Installing Software . . . . . . . . . . . . . . . . . . 135

Installing a New Operating System and Its Device Drivers ... 137

Installing Software for Windows 95 ................ 138

Installing Microsoft Windows 95 ................. 140

Installing the ThinkPad Configuration Program for Windows

95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Installing the ThinkPad Display Driver for Windows 95 ... 144

Installing PC Card Support Software for Windows 95 .... 145

Installing the Audio Device Driver for Windows 95 ...... 146

Installing the ThinkPad Modem Software for Windows 95 .. 147

Installing the IBM TrackPoint Driver for Windows 95 ..... 148

Installing the CD-ROM Device Driver for Windows 95 .... 149

Installing Software for Windows NT ................ 151

Installing Microsoft Windows NT ................ 151

Installing the ThinkPad Configuration Program for Windows

NT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Installing the Display Driver for Windows NT ......... 153

Installing PC Card Support Software for Windows NT .... 155

Installing the Audio Device Driver for Windows NT ...... 155

Installing the ThinkPad Modem Software for Windows NT . 156

Contents v

Installing the Infrared Device Driver for Windows NT ..... 158

Installing the IBM TrackPoint Driver for Windows NT .... 160

Installing the IDE Driver for Windows NT ........... 161

Installing Software for Windows Version 3.11 .......... 162

Installing Microsoft Windows Version 3.11 ........... 162

Installing the ThinkPad Configuration Program for Windows

3.11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Installing the ThinkPad Display Driver for Windows 3.11 .. 165 Installing PC Card Support Software for Windows 3.11 ... 166

Installing the Audio Device Driver for Windows 3.11 ..... 166

Installing the ThinkPad Modem Software for Windows 3.11 . 167

Installing Software for OS/2 Warp 4 ................ 169

Installing IBM OS/2 ........................ 169

Installing the ThinkPad Configuration Program for OS/2 ... 171

Installing the Display Device Driver for OS/2 ......... 171

Installing the PC Card Support Software for OS/2 ...... 172

Installing the Audio Device Driver for OS/2 .......... 173

Installing the ThinkPad Modem Software for OS/2 ...... 173

Installing the IBM TrackPoint Driver for OS/2 ......... 174

Installing the CD-ROM Device Driver for OS/2 ........ 175

Installing Software for DOS ..................... 177

Installing IBM PC DOS Version 7.0 ............... 177

Installing the ThinkPad Configuration Program for DOS ... 177

Installing PC Card Support Software for DOS ......... 178

Installing the Audio Device Driver for DOS .......... 178

Installing the CD-ROM Device Driver for DOS ........ 178

Appendix A. Using System Management ........... 181

System-Management Features . . . . . . . . . . . . . . . . . . . 182

Desktop Management Interface (DMI) ............. 183

Remote Program Load (RPL) .................. 184

Dynamic Host Configuration Protocol (DHCP) ........ 184

Wake on LAN ........................... 185

Waking Up from Suspend Mode ................ 185

System-Management Features Software ............ 186

Setting Up System-Management Features ............ 189

Enabling or Disabling Wake on LAN .............. 190

Automatic Power-On Startup Sequence ............ 192

Enabling or Disabling a Flash (POST/BIOS) Update from the

Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

vi IBM ThinkPad 600 Online Book

Appendix B. Using PS2 Commands .............. 197

Appendix C. Version Notice . . . . . . . . . . . . . . . . . . . 207

Appendix D. Trademarks . . . . . . . . . . . . . . . . . . . . . 209

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Contents vii

Where to Find Information

This online book supplements the following topics are covered. Click on the topic you want to read:

ThinkPad 600 User's Guide

. The

To use your computer in foreign countries To use audio and modem features To protect your computer To use your computer witha battery pack To get PC Card information To allocate the system resources manually

To install operating systems and the ThinkPad device drivers

Chapter 8

To solve computer problems

Chapter 3

Chapter 5

Chapter 2

Chapter 7

Chapter 4

Chapter 1

Chapter 6

viii IBM ThinkPad 600 Online Book

Chapter 1. Using Your Computer Outside Your Home Count

This chapter provides necessary information if you are using the computer outside the country where you purchased it.

Changing the Date and Time ..................... 2

Power Cord Requirements ...................... 2

Selecting the Country for the Internal ThinkPad Modem ..... 3

International Hardware Service Information ............. 4

Changing the Date and Time

You need to change the date and time settings if you go to a different time zone.

In the Windows 95 desktop, click on Start and move the cursor to Settings and Control Panel. Then double-click on Control

Panel and Date/Time.

Set the current date and time.

Click on the Time Zone tab. Click on

the list. Press Enter.

Note:

, and select the region closest to your location from

If you do saving time, remove the check from the check box ( ).

Click on OK.

Power Cord Requirements

To use the AC Adapter outside the country where you purchased the computer, you need an ac power cord that is certified for the country you are visiting. You can purchase one through an IBM authorized reseller or IBM marketing representative in that country.

Attention

The use of an improper power cord might cause severe damage to your computer.

The following tables show the part numbers for power cords.

For 2-pin power cords:

IBM Power Cord Part Number

13H5273 Japan

not

want to automatically adjust the clock for daylight

Used in These Countries

2 IBM ThinkPad 600 Online Book

For 3-pin power cords:

Note

The grounded adapter is required for full MPRII compliance.

IBM Power Cord Part Number

76H3514 Australia, New Zealand 75H3516 Canada, Thailand, U.S. 76H3518 Europe 76H3520 Denmark 76H3522 India, South Africa 76H3524 United Kingdom 76H3526 Japan 76H3528 Switzerland 76H3530 Italy 76H3532 Israel 76H3535 Korea

Used in These Countries

Selecting the Country for the Internal ThinkPad Modem

To use the internal ThinkPad modem outside the country where you purchased the computer, you must change the country name.

In the Windows 95 desktop, click on Start, Programs, ThinkPad Modem, and then Country Selection.

The following two windows appear:

Chapter 1. Using Your Computer Outside Your Home Country 3

In the Dialing Properties window, select the country where you are using the modem and click on OK.

In the Modem Country Select window, select the country where you are using the modem and click on OK.

Note

| Check the IBM Web site for the latest information. When | updates become available, they will posted on:

| http://www.pc.ibm.com/thinkpad

International Hardware Service Information

The ThinkPad computer comes with an International Warranty Service (IWS). The booklet

Information

numbers for obtaining international technical support.

Note

(which comes with the computer) contains telephone

International Hardware Service

The kind of support you can get differs according to the country you are visiting.

4 IBM ThinkPad 600 Online Book

Chapter 2. Using Audio and Modem Features

Using the Audio Features ....................... 6

Using the 3D Sound Retrieval System (SRS) Function .... 7

Using the Modem Features ...................... 9

Using the 56-Kbps Modem .................... 11

Telephony Features . . . . . . . . . . . . . . . . . . . . . . . . 12

| Setting the RingCentral Application for New Zealand ... 13

| Caller ID Support ........................ 13

Using the Audio Features

Your computer is equipped with the following:

A -inch (3.5-mm) diameter external stereo line-in or monaural

microphone/line-in jack.

To use the input jack for an external stereo line-in device, you need to disable the microphone function with software on your operating system. For example in Windows 95, you can disable the function by putting a check mark in the check box of Mute for MIC in the “Master Out” window. To use the jack for a manual microphone, disable the line-in function with software.

A -inch (3.5-mm) diameter stereo headphone or an

external-powered speaker jack.

A MIDI/joystick port on the docking station. To use a MIDI device, you should first connect your computer to the &dosk.; then connect an external MIDI device to the docking station. After docking your computer in the docking station, you should enable this port using the ThinkPad Configuration program.

Note

Your computer also has an audio chip that enables you to enjoy various multimedia audio features. This audio chip provides the following features:

Recording and playing back of PCM and WAV files in 8-bit or 16-bit format.

Sampling of various rates from 8 KHz to 44 KHz for the WAV file.

Playback of MIDI files through an FM synthesizer.

Recording from various sound sources, such as an integrated microphone, an external microphone, or an audio device attached to a line-in jack or an integrated CD-ROM drive.

DOS game compatibility. You should select Sound Blaster Pro** for the audio adapter in the sound setup of the game.

IBM ThinkPad 600 Online Book

The 3D Sound Retrieval System (SRS) function compensates for flat, two-dimensional sound image limitations by reestablishing the necessary information that allows the human ear to hear in three dimensions.

Attention

Do not enter suspend or hibernation mode when you are using audio features. You need to turn off any automatic timers that put the computer into suspend or hibernation mode. If the computer enters suspend or hibernation mode, data from a running audio program will be lost.

Using the 3D Sound Retrieval System (SRS) Function

To use the SRS function, do the following:

Double-click on the small speaker icon ( ) at the bottom right of the Windows desktop.

Click on the Start button, and then select Programs, Accessories, Multimedia, and Volume Control.

The “Master Out” window appears:

Make sure that the SRS Balance column is displayed and the Mute check box is unchecked.

Chapter 2. Using Audio and Modem Features 7

If the column is displayed and the check box is not checked, exit the window. You can use the SRS function; skip the remaining steps.

If the column is not displayed, go to the next step.

Select Options on the upper left corner of the window.

Select Properties. The “Properties” window appears:

Put a check mark on SRS and press OK. You return to the “Master Out” window.

Make sure that there is no check mark in the Mute check box in the SRS Balance column.

Exit the “Master Out” window.

Now you can use the SRS function.

8 IBM ThinkPad 600 Online Book

Using the Modem Features

You can use the following functions with the ThinkPad Modem:

Data modem functions

– Asynchronous communications port interface (NS16550A

UART compatible) operation – ITU-T V.34 up to 33.6 Kbps data modem – ITU-T V.32bis protocols with data rates of 4800, 7200, 9600,

12000, and 14000 bps – ITU-T V.32 protocols with data rates of 4800, 9600 uncoded,

and 9600 bps Trellis coded – ITU-T V.21/V.22, V.22bis protocols with data rates from 300

bps to 2400 bps – Hayes** AT command set compatibility – Asynchronous error recovery protocol – Microcom Network Protocol (MNP**) protocols

– VoiceView (Windows 95 only) –X2

Windows NT only)

Facsimile (fax) modem functions

– Class 1 fax modem – Class 2 fax modem

– G3 transfers

– ITU-T T.4 & T.30 operations – ITU-T V.27ter-2400/4800 bps send/receive – ITU-T V.29-7200/9600 bps send/receive – ITU-T V.17-14400 bps send/receive

- Error correction via MNP classes 1–4

- Data compression via MNP class 5 and V.42bis

- MNP class 5 for up to 2x data compression

** protocol with data rates of 56 kbps (Windows 95 and

You can use this ThinkPad modem only on a public-switched telephone network (PSTN). You cannot use a private branch exchange (PBX) or some other type of digital telephone extension line. If you connect the modem to a line other than PSTN, an error message appears, preventing you from using the line. If you are not sure which kind of phone line you are using, contact your telephone company.

Chapter 2. Using Audio and Modem Features 9

Attention for Use Overseas

In many countries, you cannot use the ThinkPad modem

function before obtaining approval from the proper authorities.

Your ThinkPad modem is a worldwide modem and can be used in any country where Postal Telegraph and Telephone (PTT) type approval has been obtained. If the country you want is not on the Country Selection listing, see http://www.pc.ibm.com/thinkpad on the Internet, and download the newest Country Selection list.

If you are a non-U.S. user, run the Country Selection program in the ThinkPad Modem folder after you complete the ThinkPad Modem installation. The “Country Selection” window enables you to change the country name to the country in which you are actually going to use the ThinkPad Modem telephony function in. Click on ThinkPad Modem in your operating system; then click on Country Selection. Confirm whether the selection matches the country name in the Dialing Properties listing (for Windows 95).

For more information on the use of the internal modem in a specific country, contact the IBM customer support center in that country. You can look up the phone number by referring to the International Service Information booklet that came with your computer.

DANGER

To avoid shock hazard, do not connect the cable to or disconnect the cable from the telephone outlet on the wall during electrical storms.

To use the ThinkPad modem, connect one end of the telephone cable to the modem port; then connect the other end to the telephone outlet on the wall.

For Windows 95 and Windows NT:

IBM ThinkPad 600 Online Book

When you start Windows, the ThinkPad Modem automatically starts and is ready for use.

For OS/2:

To start the ThinkPad modem from OS/2, do the following:

Open the Communications for OS/2 folder.

Double-click on the Modem icon.

Start your communication program.

Using the 56-Kbps Modem

To take advantage of your modem's 56-Kbps x2** technology, you must first make sure that your Internet service provider (ISP) supports a 56-Kbps modem protocol.

Contact your ISP and determine which 56-Kbps modem protocol they use.

Determine which 56-Kbps modem protocol your modem supports. To view your modem's supported protocol, do the following:

a) Click on the Start button, and select Programs and

Modem (or Modem & Audio). b) Click on Modem. c) Choose Options from the “Modem Status” window; then

choose Settings.

The available transfer speeds are displayed. The 56-Kbps

protocol your modem supports is listed in parentheses

following the 56-Kbps transfer setting.

If no 56-Kbps transfer setting is listed, your modem's

56-Kbps technology is not currently enabled.

Your modem and your ISP must support the same 56-Kbps protocol, or your maximum connection speed will be limited to V.34 technology.

Chapter 2. Using Audio and Modem Features 11

Significantly higher Internet modem connection speeds up to 56 Kbps require all-digital transmission connections from your ISP to the line card in the central office to which your phone line is connected. The actual rate of reception is limited by the quality of your telephone line, which may vary from location to location.

In the U.S., current FCC regulations limit the maximum speed for downstream communication to 53 Kbps. Even though your modem contains 56-Kbps technology, connect rate in the receive direction might be significantly less than 56 Kbps.

Currently, 56-Kbps capability is in the receive direction only (from the ISP to your local modem). The transmit or send direction (from your local modem to the ISP) uses V.34 technology.

Note: 56-Kbps transfer rates are not available in all locations or

Telephony Features

The ThinkPad modem, with the associated software, provides the following telephony features:

Other

countries. You must check with your ISP to determine if your area is capable of 56-Kbps transfer rates.

Industry standard modem support up to 33.6 Kbps Industry standard fax support up to 14.4 Kbps Computer telephony function support

– DTMF and pulse dialing – Detecting DTMF digits received from the phone line – Call progress monitoring

– Auto-dialing feature

– Telephony API (TAPI) support through Windows 95

Unimodem V (Windows 95 only)

Telephone answering machine support (Windows 95 only)

– Recording and playback of messages and greetings – Answering device with caller ID – Modem class 8 AT commands for TAPI calls

Full-duplex speaker phone support (Windows 95 only)

– Acoustic echo cancellation

– DOS box operation for 33.6-Kbps data and 14.4-Kbps fax – System level and device level power management

IBM ThinkPad 600 Online Book

| | The RingCentral** program allows you to set the number of rings for | incoming messages before it answers the call.

| You can set the value by selecting: | Options - Answering - Ring Options | from the RingCentral menu.

| The values x and y in the following fields must be between 2 and 5: | Answer after x rings if there are new messages.

| Answer after y rings if there are no new messages.

Setting the RingCentral Application for New Zealand

| | The “Answering devices with caller ID support” can be used only | where the caller ID services is available, currently only in the U.S. | and Canada.

Caller ID Support

Chapter 2. Using Audio and Modem Features 13

14 IBM ThinkPad 600 Online Book

Chapter 3. Protecting Your Computer

This chapter provides overall information about how to protect your computer from theft or unauthorized use. To protect your computer, you can use

Passwords

The Personalization Editor A mechanical Lock

For more details, see the

User's Reference

Using Passwords

The password-setting feature prevents your computer from being used by others. Once you set a password, a prompt appears on the screen each time you turn on the computer. You must enter your password at the prompt. You will not be able to use the computer unless you type the correct password. You can set the following passwords on your computer:

The power-on password protects your computer from being

used by unauthorized persons.

The hard disk password protects the data on your hard disk

from being accessed by unauthorized persons.

The supervisor password protects the system information stored in Easy-Setup so that without knowing the password, nobody can change the configuration of the computer.

To use the password, refer to the

Using the Personalization Editor

With the Personalization Editor, you can display such personal information as your name and address on the screen each time you power on your computer. This feature helps you to identify your computer when identical computers are being used in your location, or to deter theft.

To set the Personalization Editor, refer to the

Using Mechanical Locks

You can attach a mechanical lock to your computer, to prevent it from being removed without your permission.

To attach a lock, do the following: Attach a mechanical lock to the keyhole 1 on the left side of the

computer; then secure the chain on the lock to a secure stationary object.

User's Reference

IBM ThinkPad 600 Online Book

Note

You are responsible for evaluating, selecting, and implementing the locking devices and security features. IBM makes no comments, judgments, or warranties about the function, quality, or performance of locking devices and security features.

Chapter 3. Protecting Your Computer 17

18 IBM ThinkPad 600 Online Book

Chapter 4. Using Your Computer with a Battery Pack

If you use your ThinkPad computer with the battery pack, you need to conserve the power for long operation. The ThinkPad computer is provided with power management for saving battery power, and it always indicates the battery status. This chapter describes these function for battery operation.

Using the Battery Pack ....................... 20

Charging the Battery Pack .................... 20

Monitoring the Battery Status .................. 20

Using the Battery Status Indicator .............. 21

Using the Fuel-Gauge Program ............... 23

Saving Battery Power ........................ 24

Using the Power Management Modes ............. 24

Customizing Power Management ................ 28

Setting the Suspend Timer .................. 28

Enabling Hibernation Mode .................. 29

Considerations When Using a Power Management Mode .. 30

Considerations for Suspend Mode .............. 30

Considerations for Hibernation Mode ............ 32

Notes for Reinstalling or Installing the Operating System 33

Using Other Battery-Saving Methods .............. 35

Using the Battery Pack

This section describes how to charge your battery pack and display its status.

Charging the Battery Pack

You can charge the battery pack when the AC Adapter is connected to the computer and the battery pack is installed. You need to charge the battery pack in any of the following conditions:

Monitoring the Battery Status

You can monitor the battery status through the battery status indicator and the Fuel-Gauge program.

When you purchase a new battery pack

If the battery status indicator starts blinking

If the battery pack has not been used for a long time

Notes

Before you charge the battery pack, ensure that its

temperature is at least 10°C (50°F).

If the battery pack has not been used for a long time, it will not be fully charged with only a single charging. You will have to completely discharge it; then recharge it three to six times to maximize battery operating time.

20 IBM ThinkPad 600 Online Book

Using the Battery Status Indicator

The battery status indicator shows the current status of the battery pack (only when the battery is installed).

Compare the battery status indicator with the following table to determine the condition of your battery.

Status Condition

Green Enough power remains for operation. Orange The battery pack is being charged. Blinking

orange

Off The battery pack is not installed.

The battery pack needs charging. If the indicator starts blinking orange, the computer beeps three times.

The computer is turned off or is in suspend mode

when the AC Adapter is not connected.

Chapter 4. Using Your Computer with a Battery Pack 21

Attention

You should take corrective actions when the battery status indicator is consecutive beeps. (If your computer enters suspend mode because of a low-battery condition, data in memory might be lost.)

blinking orange

, and your computer sounds three

Immediately connect the AC Adapter to the computer

Then take either of the following actions:

To continue your work with AC Adapter, press the Fn key.

or:

To continue your work with a fully charged battery pack, do the following:

Replace the battery pack with a fully charged one. (See the

User's Reference

Press the Fn key.

Disconnect the AC Adapter from the computer.

If you do not take corrective actions within about 30 seconds, the computer will enter suspend mode.

Do not leave the computer in this condition for an extended time. Data in memory will be lost.

22 IBM ThinkPad 600 Online Book

Using the Fuel-Gauge Program

Using the Fuel-Gauge program, you can display the battery status and power mode (High Performance, Automatic, or Customized). You also can select suspend or hibernation mode.

To start the Fuel-Gauge program, click on the Fuel-Gauge icon in the ThinkPad Configuration window. The following window appears:

Notes

The “Current Power Mode” icon depends on the power mode. The “Power Source” icon depends on the power source.

( is for the AC Adapter and is for battery pack.)

The “Duration of Remaining Power” does not appear when

the AC Adapter is connected.

You can minimize the window to an icon by clicking on the icon at the top of the window. You can toggle between the Fuel-Gauge window and the icon by pressing the Fn+F2 key combination.

Chapter 4. Using Your Computer with a Battery Pack 23

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