Lenovo ThinkPad T61 7659 User Manual

ThinkPad® T61

Service and Troubleshooting Guide

ThinkPad® T61

Service and Troubleshooting Guide

Note

Before using this information and the product it supports, be sure to read the following:

vSafety and Warranty Guide included in the package with this publication.

vWireless related information in online Access Help and Appendix D, “Notices,” on page 63.

vRegulatory Notice included in the package with this publication.

Second Edition (April 2007)

© Copyright Lenovo 2007. All rights reserved.

U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule contract with Lenovo, if any, or the standard terms of this commercial license, or if the agency is unable to accept this

Program under these terms, then we provide this Program under the provisions set forth in Commercial Computer Software–Restricted Rights at FAR 52.227-19, when applicable, or under Rights in Data-General, FAR 52.227.14 (Alternate III).

Contents

	Read this first . . . . . . . . . .	. v		Restoring factory contents . . . . . .	.	29
				Recovering data . . . . . . . . . .	.	30
	Chapter 1. Finding information . . . .	.	1
	This guide and other publications . . . .	. 1		Chapter 5. Upgrading and replacing
	Finding information with the ThinkVantage			devices . . . . . . . . . . . .	.	31
	button . . . . . . . . . . . . .	.	2	Replacing the battery . . . . . . . .	.	31
				Upgrading the hard disk drive . . . . .	. 33
	Chapter 2. Taking care of your ThinkPad			Replacing memory . . . . . . . . .	.	37
	computer . . . . . . . . . . . . . 3
	Important tips. . . . . . . . . . .	.	3	Chapter 6. Getting help and service . .	.	45
	Be careful about where and how you work		3	Getting help and service . . . . . . .	. 45
	Be gentle with your computer . . . .	. 4		Getting help on the Web . . . . . . .	. 45
	Carry your computer properly . . . .	. 4		Calling the Customer Support Center . .	. 45
	Handle storage media and drives properly		5	Getting help around the world . . . . .	. 47
	Take care in setting passwords . . . .	.	5	Worldwide telephone list. . . . . . .	.	47
	Other important tips . . . . . . .	.	5
	Cleaning the cover of your computer . .	. 6		Appendix A. Warranty information . . .	. 53
	Cleaning your computer keyboard . . .	. 6		Types of warranty service . . . . . .	. 54
	Cleaning your computer display . . .	. 7
	Care for the fingerprint reader . . . .	.	7	Appendix B. Customer Replaceable Units
	Chapter 3. Solving computer problems .	. 9		(CRUs) . . . . . . . . . . . .	.	57
	Frequently asked questions . . . . . .	.	10	Appendix C. Features and Specifications		59
	Diagnosing problems . . . . . . . .	.	11	Features . . . . . . . . . . . .	.	59
	HDD diagnostic program . . . . .	.	11	Specifications . . . . . . . . . .	.	60
	Diagnosing problems using PC-Doctor
	from the service partition . . . . .	.	12	Appendix D. Notices. . . . . . . .	.	63
	Troubleshooting . . . . . . . . . . .		13	Notices. . . . . . . . . . . . .	.	63
	Error messages . . . . . . . . .	.	13
				Electronic emissions notices . . . . . .	.	64
	Errors without messages . . . . . .	.	18
				Federal Communications Commission
	Password problems . . . . . . .	.	19
				(FCC) Statement . . . . . . . .	.	64
	Keyboard problems . . . . . . .	.	19
				Industry Canada Class B emission
	Pointing device problems . . . . .	.	20
				compliance statement . . . . . . .	.	65
	Sleep (standby) or hibernation problems		20
				Avis de conformité à la réglementation
	Computer screen problems . . . . .	. 21
				d’Industrie Canada. . . . . . . .	.	65
	Battery problems . . . . . . . .	.	24
				European Union EMC Directive
	Hard disk drive problems . . . . .	. 25
				conformance statement . . . . . .	.	65
	Fingerprint authentication problems . .	. 26
				Japanese VCCI Class B statement . . .	. 66
	Startup problems . . . . . . . .	.	26
				EU WEEE Statements . . . . . . . .	. 66
	Other problems . . . . . . . . .	.	27
				Notice for users in the U.S.A. . . . . .	.	66
	Starting BIOS Setup Utility . . . . . .	.	27
				IBM Lotus Software Offer . . . . . .	.	67
	Chapter 4. Recovery options . . . . .	. 29		Trademarks . . . . . . . . . . .	.	69
	Introducing Rescue and Recovery . . . .	. 29		Index . . . . . . . . . . . . .	.	71
	© Copyright Lenovo 2007					iii

iv ThinkPad® T61 Service and Troubleshooting Guide

Read this first

When your computer is turned on or the battery is charging, the base, the palm rest, and some other parts may become hot. Avoid keeping your hands, your lap, or any other part of your body in contact with a hot section of the computer for any extended length of time. When you use the keyboard, avoid keeping your palms on the palm rest for a prolonged period of time.

Your computer generates some heat during normal operation. The amount of heat depends on the amount of system activity and the battery charge level. Extended contact with your body, even through clothing, could cause discomfort or even a skin burn. Periodically take breaks from using the keyboard by lifting your hands from the palm rest; and be careful not to use the keyboard for any extended length of time.

When the ac adapter is connected to an electrical outlet and your computer, it generates heat. Do not place the adapter in contact with any part of your body while using it. Never use the ac adapter to warm your body. Extended contact with your body, even through clothing, may cause a skin burn.

© Copyright Lenovo 2007

v

Read this first

Route the cables of an ac adapter, a mouse, a keyboard, a printer, or any other electronic device, or communication lines, so that they cannot be walked on, tripped over, pinched by your computer or other objects, or in any way subjected to treatment that could disturb the operation of your computer. Applying strong force to the cables may damage or break them.

Before moving your computer, do one of the following: turn it off, press Fn+F4 to put it in sleep (standby) mode, or press Fn+F12 to put it in hibernation mode.

Before moving the computer, make sure that the power on indicator is off. This will help to prevent damage to the hard disk drive, and possible loss of data.

Do not drop, bump, scratch, twist, hit, vibrate, push or place heavy objects on your computer, display, or external devices.

vi ThinkPad® T61 Service and Troubleshooting Guide

Read this first

Use a quality carrying case that provides adequate cushion and protection. Do not pack your computer in a tightly packed suitcase or bag.

Place liquids away from your computer to avoid spills, and keep your computer away from water to avoid the danger of electrical shock.

Read this first vii

Read this first

viii ThinkPad® T61 Service and Troubleshooting Guide

Chapter 1. Finding information

This guide and other publications

Setup Instructions

helps you to unpack your ThinkPad computer and get started. It includes a few tips for first-time users, and introduces software preinstalled by Lenovo.

This Service and Troubleshooting Guide

provides information about caring for your ThinkPad computer, basic troubleshooting information, some recovery procedures, help and service information, and warranty information for your computer. The troubleshooting information in this Guide applies only to problems that might prevent you from accessing the comprehensive online

manual, called Access Help , preinstalled on your ThinkPad computer.

Access Help

is a comprehensive online manual that provides answers to most of
your questions about your computer, helps you to configure
preloaded features and tools, or solve problems. To open Access Help	,
do either of the following:
v Press the ThinkVantage® button. Under Quick Links in the

Productivity Center, click Access on-system help			.
v Click Start	, move the pointer toAll Programs (in Windows® 2000,
Programs	); then ThinkVantageto	. CliAccessk Help	.

Productivity Center

provides an easy access to software tools and key Lenovo sites, eliminating the need to carry other reference manuals around. To open Productivity Center, press the blue ThinkVantage button on your keyboard. For more information about using the ThinkVantage button, see“Finding information with the ThinkVantage button” on page 2.

Safety and Warranty Guide

includes general safety instructions and complete Lenovo Limited

Warranty.

Regulatory Notice

supplements this Guide. Read it before you use the wireless features of your ThinkPad computer. The ThinkPad computer complies with the radio frequency and safety standards of any country or region in which it has been approved for wireless use. You are requested to install and use your ThinkPad computer in strict accordance with the local RF regulations.

© Copyright Lenovo 2007

1

Finding information

Finding information with the ThinkVantage button

The blue ThinkVantage button can help you in many situations when your computer is working normally, and even when it is not. Press the ThinkVantage button to open the Productivity Center and get access to informative illustrations and easy-to-follow instructions for getting started and staying productive.

You can also use the ThinkVantage button to interrupt the startup sequence of your computer and start the Rescue and Recovery™ workspace, which runs independently of the Windows operating system and is hidden from it.

2ThinkPad® T61 Service and Troubleshooting Guide

Chapter 2. Taking care of your ThinkPad computer

Though your computer is designed to function reliably in normal work environments, you need to use common sense in handling it. By following these important tips, you will get the most use and enjoyment out of your computer.

Important tips

Be careful about where and how you work

vWhen your computer is turned on or the battery is charging, the base, the palm rest, and some other parts may become hot. Avoid keeping your hands, your lap, or any other part of your body in contact with a hot section of the computer for any extended length of time. When you use the keyboard, avoid keeping your palms on the palm rest for a prolonged period of time.

Your computer generates some heat during normal operation. The amount of heat depends on the amount of system activity and the battery charge level. Extended contact with your body, even through clothing, could cause discomfort or even a skin burn. Periodically take breaks from using the keyboard by lifting your hands from the palm rest; and be careful not to use the keyboard for any extended length of time.

vWhen the ac adapter is connected to an electrical outlet and your computer, it generates heat. Do not place the adapter in contact with any part of your body while using it. Never use the ac adapter to warm your body.

Extended contact with your body, even through clothing, may cause a skin burn.

vRoute the cables of an ac adapter, a mouse, a keyboard, a printer, or any other electronic device, or communication lines, so that they cannot be walked on, tripped over, pinched by your machine or other objects, or in any way subjected to treatment that could disturb the operation of your computer. Applying strong force to the cables may damage or break them.

vPlace liquids away from your computer to avoid spills, and keep your computer away from water (to avoid the danger of electrical shock).

vStore packing materials safely out of the reach of children to prevent the risk of suffocation from plastic bags.

vKeep your computer away from magnets, activated cellular phones, electrical appliances, or speakers (within 13 cm or 5 in).

vAvoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).

© Copyright Lenovo 2007

3

Taking care of your ThinkPad computer

vSome appliances, such as certain portable desktop fans or air purifiers, can produce negative ions. If a computer is close to such an appliance, and is exposed for an extended time to air containing negative ions, it may become electrostatically charged. Such a charge may be discharged through your hands when you touch the keyboard or other parts of the computer, or through connectors on I/O devices connected to it. Even though this kind of electrostatic discharge (ESD) is the opposite of a discharge from your body or clothing to the computer, it poses the same risk of a computer malfunction.

Your computer is designed and manufactured to minimize any effects of electrostatic charge. An electrostatic charge above a certain limit, however, can increase the risk of ESD. Therefore, when using the computer close to an appliance that can produce negative ions, give special attention to the following:

–Avoid directly exposing your computer to the air from an appliance that can produce negative ions.

–Keep your computer and peripherals as far as possible from such an appliance.

–Wherever possible, ground your computer to facilitate safe electrostatic discharge.

Note: Not all such appliances cause a significant electrostatic charge.

Be gentle with your computer

vAvoid placing any objects (including paper) between the display and the keyboard or under the keyboard.

vDo not drop, bump, scratch, twist, hit, vibrate, push, or place heavy objects on your computer, display, or external devices.

vYour computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do not open the display beyond 180 degrees, as this might damage the computer hinge.

Carry your computer properly

vBefore moving your computer, be sure to remove any media, turn off attached devices, and disconnect cords and cables.

vBe sure your computer is in sleep (standby) or hibernation mode, or turned off, before moving it. This will prevent damage to the hard disk drive and data loss.

vWhen picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the display.

vUse a quality carrying case that provides adequate cushion and protection. Do not pack your computer in a tightly packed suitcase or bag.

4ThinkPad® T61 Service and Troubleshooting Guide

Taking care of your ThinkPad computer

Handle storage media and drives properly

vIf your computer comes with a diskette drive, avoid inserting diskettes at an angle and attaching multiple or loose diskette labels, as these can lodge in the drive.

vIf your computer comes with an optical drive, do not touch the surface of a disc or the lens on the tray.

vWait until you hear the CD or DVD click into the center pivot of an optical drive before closing the tray.

vWhen installing your hard disk, diskette or optical drive, follow the instructions shipped with your hardware, and apply pressure only where needed on the device.

Take care in setting passwords

vRemember your passwords. If you forget a supervisor or hard disk password, Lenovo authorized service provider will not reset it, and you might have to replace your system board or hard disk drive.

Other important tips

vYour computer modem might use only an analog telephone network, or public-switched telephone network (PSTN). Do not connect the modem to a PBX (private branch exchange) or any other digital telephone extension line because this could damage your modem. Analog phone lines are often used in homes, while digital phone lines are often used in hotels or office buildings. If you are not sure which kind of phone line you are using, contact your telephone company.

vYour computer might have both an Ethernet connector and a modem connector. If so, be sure to connect your communication cable to the correct one, so your connector is not damaged.

vRegister your ThinkPad products with Lenovo (visit the following Web site: http://www.lenovo.com/register). This can help authorities return your computer to you if it is lost or stolen. Registering your computer also enables Lenovo to notify you about possible technical information and upgrades.

vOnly an authorized ThinkPad repair technician should disassemble and repair your computer.

vDo not modify or tape the latches to keep the display open or closed.

vTake care not to turn your computer over while the ac adapter is plugged in. This could break the adapter plug.

vTurn off your computer if you are replacing a device in a device bay, or else verify that the device is warmor hot-swappable.

vIf you exchange drives in your computer, reinstall the plastic bezel faces (if supplied).

Chapter 2. Taking care of your ThinkPad computer 5

Taking care of your ThinkPad computer

vStore your external and removable hard disk, diskette or optical drives in the appropriate containers or packaging when they are not being used.

vBefore you install any of the following devices, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the device.

–PC Card

–ExpressCard

–Smart Card

–Memory Card, such as xD-Picture Card, SD Card, Memory Stick, and MultiMediaCard

–Memory module

–PCI Express Mini Card

–Communication Daughter Card

vWhen transferring data to or from a Flash Media Card, such as an SD card, do not put your computer in sleep (standby) or hibernation mode before the data transfer is complete. To do so might cause damage to your data.

Cleaning the cover of your computer

Occasionally clean your computer as follows:

1.Prepare a mixture of a gentle kitchen-use detergent (one that does not contain abrasive powder or strong chemicals such as acid or alkaline). Use 5 parts water to 1 part detergent.

2.Absorb the diluted detergent into a sponge.

3.Squeeze excess liquid from the sponge.

4.Wipe the cover with the sponge, using a circular motion and taking care not to let any excess liquid drip.

5.Wipe the surface to remove the detergent.

6.Rinse the sponge with clean running water.

7.Wipe the cover with the clean sponge.

8.Wipe the surface again with a dry, soft lint-free cloth.

9.Wait for the surface to dry completely and remove any cloth fibers from the computer surface.

Cleaning your computer keyboard

1.Absorb some isopropyl rubbing alcohol on a soft, dust-free cloth.

2.Wipe each keytop surface with the cloth. Wipe the keys one by one; if you wipe several keys at a time, the cloth may hook onto an adjacent key and possibly damage it. Make sure that no liquid drips onto or between the keys.

3.Allow to dry.

4.To remove any crumbs and dust from beneath the keys, you can use a camera blower with a brush or cool air from a hair dryer.

6ThinkPad® T61 Service and Troubleshooting Guide

Taking care of your ThinkPad computer

Note: Avoid spraying cleaner directly on the display or the keyboard.

Cleaning your computer display

1.Gently wipe the display with a dry, soft lint-free cloth. If you see a

scratch-like mark on your display, it might be a stain transferred from the keyboard or the TrackPoint® pointing stick when the cover was pressed from the outside.

2.Wipe or dust the stain gently with a soft, dry cloth.

3.If the stain remains, moisten a soft, lint-free cloth with water or a 50-50 mixture of isopropyl alcohol and water that does not contain impurities.

4.Wring out as much of the liquid as you can.

5.Wipe the display again; do not let any liquid drip into the computer.

6.Be sure to dry the display before closing it.

Care for the fingerprint reader

The following actions could damage the fingerprint reader or cause it not to work properly:

vScratching the surface of the reader with a hard, pointed object.

vScraping the surface of the reader with your nail or anything hard.

vUsing or touching the reader with a dirty finger.

If you notice any of the following conditions, gently clean the surface of the reader with a dry, soft, lint-free cloth:

vThe surface of the reader is dirty or stained.

vThe surface of the reader is wet.

vThe reader often fails to enroll or authenticate your fingerprint.

Chapter 2. Taking care of your ThinkPad computer 7

Taking care of your ThinkPad computer

8ThinkPad® T61 Service and Troubleshooting Guide

Chapter 3. Solving computer problems

Frequently asked questions . . . . .	.	.	10	Pointing device problems . . . . .	.	20
Diagnosing problems . . . . . . .	.	. 11		Sleep (standby) or hibernation problems		20
HDD diagnostic program . . . .	.	. 11		Computer screen problems . . . . .	. 21
Diagnosing problems using PC-Doctor				Battery problems . . . . . . . .	. 24
from the service partition . . . .	.	.	12	Hard disk drive problems . . . . .	.	25
Troubleshooting . . . . . . . . .	.	.	13	Fingerprint authentication problems . .	.	26
Error messages . . . . . . . .	.	.	13	Startup problems . . . . . . . .	.	26
Errors without messages . . . . .	.	.	18	Other problems . . . . . . . . .	.	27
Password problems . . . . . .	.	.	19	Starting BIOS Setup Utility . . . . . .	.	27
Keyboard problems . . . . . .	.	.	19

Note: See Access Help if your system is running and Access Help is accessible. This chapter presents information for use when Access Help is inaccessible.

© Copyright Lenovo 2007

9

Solving computer problems

Frequently asked questions

This section lists frequently asked questions and tells where you can find detailed answers. For details about each publication included in the package with the ThinkPad computer, see “This guide and other publications” on page 1.

What safety precautions should I follow when using my ThinkPad computer?

See the separate Safety and Warranty Guide for detailed information about safety.

How can I prevent problems with my ThinkPad computer?

See “Read this first” on page v, and also Chapter 2, “Taking care of your ThinkPad computer,” on page 3 of this Guide. More tips can be found in the following sections of Access Help :

vPreventing problems

vTroubleshooting

What are the main hardware features of my new ThinkPad computer?

See the “ThinkPad tour” section of Access Help .

Where can I find the detailed specifications for my machine?

See http://www.lenovo.com/think/support.

I need to upgrade a device or I need to replace one of the following: the hard disk drive, the PCI Express Mini Card, the Modem Daughter Card, memory, the keyboard, or the palm rest.

See the Appendix B, “Customer Replaceable Units (CRUs),” on page 57 of this Guide for the list of Customer Replaceable Units and the location of the instructions for removing or replacing components.

My computer is not operating properly.

Study the “Problem solving” section of Access Help . This Guide describes only problems that might prevent you from accessing the online help system.

Where are the recovery discs?

Your computer did not come with a recovery disc or Windows disc. For an explanation of the alternative recovery methods offered by Lenovo, see “Restoring factory contents” on page 29 of this Guide.

10 ThinkPad® T61 Service and Troubleshooting Guide

Solving computer problems

How can I contact the Customer Support Center?

See Chapter 6, “Getting help and service,” on page 45 of this Guide. For the phone numbers of the Customer Support Center nearest to you, see “Worldwide telephone list” on page 47.

Where can I find warranty information?

See the separate Safety and Warranty Guide for detailed warranty information. For the warranty applicable to your computer, including the warranty period and type of warranty service, see Appendix A, “Warranty information,” on page 53.

How can I install a new operating system?

See the Advanced configuration section in online Access Help .

Diagnosing problems

If you have a problem with your computer, you can test it by using PC-Doctor® for Windows. To run PC-Doctor for Windows, do as follows:

1.	Click Start .
2.	Move the pointer to All Programs (in Windows 2000, Programs ) and then
	to PC-Doctor for Windows	.
3.	Click PC-Doctor .

For more information about PC-Doctor for Windows, see the Help for the program.

Attention

Running any tests can take up to several minutes or longer. Make sure you have time to run the entire test; do not interrupt the test while it is running.

When preparing to contact the Customer Support Center, be sure to print the test log so that you can rapidly provide information to the help technician.

HDD diagnostic program

If your hard disk drive is not operating properly, you may be able to find the problem by running the HDD diagnostic program in the BIOS Setup Utility.

To start the diagnostic program, do as follows:

1.If the diskette drive is connected to the computer, remove any diskette from the diskette drive, and then turn off the computer.

2.Turn on the computer.

Chapter 3. Solving computer problems 11

Solving computer problems

3.While the message, “To interrupt normal startup, press the blue ThinkVantage button,” is displayed at the lower left of the screen, press F1 to enter BIOS Setup Utility.

4.Using cursor keys, select HDD diagnostic program and press Enter. The menu for the HDD diagnostic program opens.

5.Using cursor keys, select Main hard disk drive or Ultrabay hard disk drive . Press Enter to start the diagnostic program. The HDD diagnostic program runs a read verification test and a speed test of the drive you select, and reports its findings.

Note: If you dock your computer in the ThinkPad Advanced Dock, the

diagnostic program cannot test the hard disk drive that is installed in the Ultrabay Enhanced™ of the ThinkPad Advanced Dock.

6.If the diagnostic program returns any error messages, call the Customer Support Center for service. The diagnostic program may return one of the following error messages:

For the main hard disk drive:

vError code 0000: Read verification failed

vError code 0100: Speed test failed

vError code 0200: Controller Diag failed For the Ultrabay™ hard disk drive:

vError code 0002: Read verification failed

vError code 0102: Speed test failed

vError code 0202: Controller Diag failed

7.If the diagnostic program returns no error message but you still have some concerns, see the instructions in the "Introducing Rescue and Recovery" section in online Access Help , and run the program for a diagnostic test of the hard disk drive. You can also download PC-Doctor for DOS for your computer from the following Web site:

http://www.lenovo.com/support/site.wss/document.do?sitestyle=lenovo &lndocid=tpad-matrix

Diagnosing problems using PC-Doctor from the service partition

By using PC-Doctor from the Rescue and Recovery workspace in the service partition of the hard disk drive, you can diagnose your system without starting up the operating system. Do as follows:

1.If the diskette drive is connected to the computer, remove any diskette from the diskette drive, and then turn off the computer.

2.Turn on the computer.

12 ThinkPad® T61 Service and Troubleshooting Guide

Solving computer problems

3.While the message, “To interrupt normal startup, press the blue ThinkVantage button,” is displayed at the lower left of the screen, press the blue ThinkVantage button to enter the Rescue and Recovery workspace.

4.Select Diagnose hardware . The computer restarts and PC-Doctor starts up.

For more information about PC-Doctor, press F1 to go to the Help or online manual for the program.

Troubleshooting

If you do not find your problem here, see Access Help . The following section only describes problems that might prevent you from accessing this help system.

Error messages

Notes:

1.In the charts, x can be any character.

2.The version of PC-Doctor referred to here is PC-Doctor for Windows.

Message	Solution
0176: System	This message is displayed if you remove the Security Chip and
Security - The	reinstall it, or install a new one. To clear the error, enter the
System has been	BIOS Setup Utility. If this does not solve the problem, have the
tampered with.	computer serviced.
0182: Bad CRC2.	Checksum of the CRC2 setting in the EEPROM is not correct.
Enter BIOS Setup	Press F1 to go to BIOS Setup Utility. Press F9 and then Enter to
and load Setup	load the default setting. Press F10 and then Enter to restart the
defaults.	system.
0185: Bad startup	Checksum of the startup sequence setting in the EEPROM is
sequence settings.	not correct. Press F1 to go to BIOS Setup Utility. Press F9 and
Enter BIOS Setup	then Enter to load the default setting. Press F10 and then Enter
and load Setup	to restart the system.
defaults.
0190: Critical	The computer turned off, because the battery is low. Connect
low-battery error	the ac adapter to the computer and charge the battery, or
	replace the battery with a fully charged one.
0191: System	The system configuration change has failed. Confirm the
Security - Invalid	operation and try again. To clear the error, enter the BIOS
remote change	Setup Utility.
requested.
0199: System	This message is displayed if you enter a wrong supervisor
Security - Security	password more than three times. Confirm the supervisor
password retry	password and try again. To clear the error, enter the BIOS
count exceeded.	Setup Utility.
	Chapter 3. Solving computer problems 13

Solving computer problems

Message	Solution
01C8: More than one	Remove one of the Modem Daughter Cards. Otherwise, press
modem devices are	Esc to ignore the warning message. If this does not solve the
found. Remove one	problem, have the computer serviced.
of them. Press <Esc>
to continue.
01C9: More than one	Your ThinkPad computer has a built-in Ethernet feature, and
Ethernet devices are	you cannot add another such feature by installing an Ethernet
found. Remove one	device such as a Mini-PCI Ethernet Card or an Ethernet
of them. Press <Esc>	Daughter Card. If this error message is displayed, remove the
to continue.	Ethernet device that you installed. Otherwise press Esc to
	ignore the warning message. If this does not solve the problem,
	have the computer serviced.
0200: Hard disk	The hard disk is not working. Make sure that the hard disk
error	drive is attached firmly. Run the BIOS Setup Utility; then make
	sure the hard disk drive is not disabled in the Startup menu.
021 x:Keyboard error	Make sure that there are no objects placed on the keyboard, or
	if you have one, the external keyboard. Turn off the computer,
	and turn off all attached devices. Turn on the computer first;
	then turn on the attached devices.
	If you still see the same error code, do the following:
	If an external keyboard is connected, do the following:
	v Turn off the computer and disconnect the external keyboard;
	then turn on the computer. Make sure that the built-in
	keyboard operates correctly. If it does, have the external
	keyboard serviced.
	v Make sure that the external keyboard is connected to the
	correct connector.
	Test the computer by using PC-Doctor.
	v If the computer stops during the test, have the computer
	serviced.
0230: Shadow RAM	The shadow RAM failed. Test your computer’s memory with
error	PC-Doctor. If you added a memory module just before turning
	the computer on, reinstall it. Then test the memory with
	PC-Doctor.
0231: System RAM	The system RAM failed. Test your computer’s memory with
error	PC-Doctor. If you added a memory module just before turning
	the computer on, reinstall it. Then test the memory with
	PC-Doctor.
0232: Extended	The extended RAM failed. Test your computer’s memory with
RAM error	PC-Doctor. If you have increased memory just before turning
	the computer on, reinstall it. Then test the memory with
	PC-Doctor.

14 ThinkPad® T61 Service and Troubleshooting Guide

	Solving computer problems
Message	Solution
0250: System battery	The backup battery, which is used to preserve the configuration
error	information, such as the date and time, while the computer is
	turned off, is depleted. Replace the battery and run BIOS Setup
	Utility to verify the configuration. If you still have a problem,
	have the computer serviced.
0251: System CMOS	The system CMOS might have been corrupted by an
checksum bad	application program. The computer uses the default settings.
	Run BIOS Setup Utility to reconfigure the settings. If you still
	see the same error code, have the computer serviced.
0271: Date and time	Neither the date nor the time is set in the computer. Set the
error	date and time, using the BIOS Setup Utility.
0280: Previous boot	Your computer was previously unable to complete the boot
incomplete	process.
	Turn the computer off; then turn it on to start the BIOS Setup
	Utility. Verify the configuration and then restart the computer
	either by choosing the Exit Saving Changes option under the
	Restart item or by pressing F10. If you still see the same error
	code, have the computer serviced.
1802: Unauthorized	The Mini-PCI network card is not supported on this computer.
network card is	Remove it.
plugged in - Power
off and remove the
miniPCI network
card.
1803: Unauthorized	The daughter card is not supported on this computer. Remove
daughter card is	it.
plugged in - Power
off and remove the
daughter card.
1804: Unauthorized	The WAN card is not supported on this computer. Remove it.
WAN card is
plugged in - Power
off and remove the
WAN card.
1805: Unauthorized	The Wireless USB card is not supported on this computer.
Wireless USB card is	Remove it.
plugged in - Power
off and remove the
Wireless USB card.
2100: Initialization	The hard disk is not working. Have the hard disk serviced.
error on HDD0
(Main hard disk
drive)
	Chapter 3. Solving computer problems 15

Solving computer problems

Message	Solution
2102: Initialization	The hard disk is not working. Have the hard disk serviced.
error on HDD1
(Ultrabay hard disk
drive)
2110: Read error on	The hard disk is not working. Have the hard disk serviced.
HDD0 (Main hard
disk drive)
2112: Read error on	The hard disk is not working. Have the hard disk serviced.
HDD1 (Ultrabay
hard disk drive)
The power-on	A power-on password or a supervisor password is set. Type
password prompt	the password and press Enter to use the computer. If the
	power-on password is not accepted, a supervisor password
	might have been set. Type the supervisor password and press
	Enter. If you still see the same error message, have the
	computer serviced.
The hard disk	A hard disk password is set. Type the password and press
password prompt	Enter to use the computer.
	If you still see the same error message, have the computer
	serviced.
Hibernation error	The system configuration changed between the time your
	computer entered hibernation mode and the time it left this
	mode, and your computer cannot resume normal operation.
	v Restore the system configuration to what it was before your
	computer entered hibernation mode.
	v If the memory size has been changed, re-create the
	hibernation file.
Operating system	Verify the following:
not found.	v The hard disk drive is correctly installed.
	v A startable disc is in the drive.
	If you still see the same error message, check the boot
	sequence, using the BIOS Setup Utility.
EMM386 Not	Edit C:\CONFIG.SYS and change a line from
Installed - Unable to	device=C:\WINDOWS\EMM386.EXE RAM
Set Page Frame Base
Address.	to
	device=C:\WINDOWS\EMM386.EXE NOEMS
	and save this file.

16 ThinkPad® T61 Service and Troubleshooting Guide