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ThinkCentre
Hardware Installation and Replacement Guide
Machine Types 6417, 6418, 6449, 6453
ThinkCentre
Hardware Installation and Replacement
Guide
Note
Before using this information and the product it supports, be sure to read and understand the Safety and Warranty Guide for
this product and “Notices,” on page 31.
Second Edition (August 2007)
© Copyright Lenovo 2005, 2007.
Portions © Copyright International Business Machines Corporation 2005.
All rights reserved.
LENOVO products, data, computer software, and services have been developed exclusively at private expense and
are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted
rights to use, reproduction and disclosure.
LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered
pursuant a General Services Administration ″GSA″ contract, use, reproduction, or disclosure is subject to restrictions
set forth in Contract No. GS-35F-05925.
Contents
Figures . . . . . . . . . . . . . . . v
Chapter 1. Important safety information
1
Chapter 2. Overview . . . . . . . . . 3
Additional information resources . . . . . . .
Handling static-sensitive devices . . . . . . . .
Locations . . . . . . . . . . . . . . .
Locating controls and connectors on the front of
your computer . . . . . . . . . . . . .
Locating connectors on the rear of your computer
Locating components . . . . . . . . . .
Identifying parts on the system board . . . . .
3
4
5
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6
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Chapter 3. Installing options and
replacing hardware . . . . . . . . . 11
Installing external options
Removing the cover . .
Installing internal options
Installing memory . .
Replacing the battery . .
Replacing the heat sink .
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© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
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Replacing
Replacing
Replacing
Replacing
Replacing
Replacing
Replacing
Replacing
a hard disk drive . . .
an optical drive . . .
a memory module . .
the AC power adapter .
the modem . . . . .
the system fan assembly
the keyboard . . . .
the mouse . . . . .
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Chapter 4. Completing the parts
replacement . . . . . . . . . . . . 27
Obtaining device drivers .
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Chapter 5. Security features
Integrated cable lock . . . . .
Password protection . . . . .
Erasing a lost or forgotten password
CMOS) . . . . . . . . . .
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(clearing
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Appendix. Notices . . . . . . . . . . 31
Television output notice .
Trademarks . . . . .
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Hardware Installation and Replacement Guide
Figures
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Controls and connectors . . . . . . . .
Locating the rear connectors . . . . . .
Locating components . . . . . . . . .
Locating parts on the system board . . . .
Installing a memory module . . . . . .
Removing the battery . . . . . . . .
Installing the battery . . . . . . . .
Removing the heat sink held in place by
screws . . . . . . . . . . . . .
Replacing the heat sink with screws . . .
Installing the hard disk drive into the bracket
Removing the front bezel . . . . . . .
Removing the optical drive . . . . . .
Retainer bracket for optical drive . . . .
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
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Replacing the optical drive . . . . . .
Removing the memory module . . . . .
Installing the new memory module . . .
Locating the modem daughter card on the
system board . . . . . . . . . . .
Removing the system fan assembly . . .
Installing the short rubber mounts . . . .
Replacing the system fan assembly . . . .
Keyboard connectors, USB . . . . . .
Mouse connectors, USB . . . . . . .
Routing the cables . . . . . . . . .
Closing the computer cover . . . . . .
Installing cable lock . . . . . . . . .
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vi
Hardware Installation and Replacement Guide
Chapter 1. Important safety information
CAUTION:
Before using this manual, it is important that you read and understand all the
related safety information for this product. Refer to the Safety and Warranty Guide
that you received with this product for the latest safety information. Reading
and understanding this safety information reduces the risk of personal injury
and or damage to your product.
If you no longer have a copy of the Safety and Warranty Guide, you can obtain one
online from the Lenovo Support Web site at:
http://www.lenovo.com/support.
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
1
2
Hardware Installation and Replacement Guide
Chapter 2. Overview
This guide provides information about replacing Customer Replaceable Units
(CRUs).
This guide does not include procedures for all parts. It is expected that cables,
switches, and certain mechanical parts be replaced by trained service personnel
without the need for step-by-step procedures.
Note: Use only parts provided by Lenovo™.
This guide contains instructions for installing or replacing the following parts:
v
v
v
v
v
v
v
v
v
v
Battery
Heat sink
Hard disk drive
Optical drive
Memory module
System fan assembly
AC power adapter
Modem
Keyboard
Mouse
Additional information resources
If you have Internet access, the most up-to-date information for your computer is
available from the World Wide Web.
You can find:
v CRU removal and installation information
v CRU removal and installation videos
v Publications
v Troubleshooting information
v Parts information
v Downloads and drivers
v Links to other useful sources of information
v Support phone list
To access this information, point your browser to:
http://www.lenovo.com/support
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
3
Handling static-sensitive devices
Do not open the static-protective package containing the new part until the
defective part has been removed from the computer and you are ready to install
the new part. Static electricity, although harmless to you, can seriously damage
computer components and parts.
When you handle parts and other computer components, take these precautions to
avoid static-electricity damage:
v Limit your movement. Movement can cause static electricity to build up around
you.
v Always handle parts and other computer components carefully. Handle
adapters, memory modules, system boards, and microprocessors by the edges.
Never touch any exposed circuitry.
v Prevent others from touching the parts and other computer components.
v Before you replace a new part, touch the static-protective package containing the
part to a metal expansion-slot cover or other unpainted metal surface on the
computer for at least two seconds. This reduces static electricity in the package
and your body.
v When possible, remove the new part from the static-protective packaging, and
install it directly in the computer without setting the part down. When this is
not possible, place the static-protective package that the part came in on a
smooth, level surface and place the part on it.
v Do not place the part on the computer cover or other metal surface.
4
Hardware Installation and Replacement Guide
Locations
This chapter provides illustrations to help locate the various connectors, controls,
and components of the computer.
Locating controls and connectors on the front of your
computer
Figure 1 shows the location of the controls and connectors on the front of your
computer.
Note: Not all computer models will have the following controls and connections.
Figure 1. Controls and connectors
1
2
USB connector
Microphone connector
3
4
Headphone connector
USB connector
Chapter 2. Overview
5
Locating connectors on the rear of your computer
Figure 2 shows the location of connectors on the rear of some computer models.
Some connectors on the rear of your computer are color-coded to help you
determine where to connect the cables on your computer.
Figure 2. Locating the rear connectors
1
2
3
4
5
6
Cable lock latch
Power adapter connector
Monitor connector
USB connectors (4)
Ethernet connector
Hardware Installation and Replacement Guide
6
7
8
9
Microphone connector
Audio line out connector
Audio line in connector
RJ11 modem connector
Connector
Description
USB connectors
Used to attach a device that requires a Universal Serial Bus
(USB) connection, such as a USB keyboard, USB mouse, USB
scanner or USB printer. If you have more than six USB devices,
you can purchase a USB hub, which you can use to connect
additional USB devices.
Ethernet connector
Used to attach an Ethernet cable for a local area network
(LAN).
Note: To operate the computer within FCC Class B limits, use
a Category 5 Ethernet cable.
Audio-line-in connector
Used to receive audio signals from an external audio device,
such as a stereo system. When you attach an external audio
device, a cable is connected between the audio line out
connector of the device and the audio line in connector of the
computer.
Audio-line-out connector
Used to send audio signals from the computer to external
devices, such as powered stereo speakers (speakers with
built-in amplifiers), headphones, multimedia keyboards, or the
audio line in connector on a stereo system or other external
recording device.
Microphone connector
Used to attach a microphone to your computer when you want
to record voice or other sounds on the hard disk if you use
speech-recognition software.
Chapter 2. Overview
7
Locating components
To remove the computer cover, see “Removing the cover” on page 11.
This section shows the location of the various components in your computer.
Figure 3. Locating components
1 Optical drive
2 System fan assembly
3 Hard disk drive
8
Hardware Installation and Replacement Guide
Identifying parts on the system board
The system board (sometimes called the planar or motherboard) is the main circuit
board in your computer. It provides basic computer functions and supports a
variety of devices.
Figure 4 shows the location of parts on the system board for some computer
models.
Figure 4. Locating parts on the system board
1
Microprocessor and heat sink
9
2
3
4
5
6
7
8
Memory connectors (2)
Thermal sense cable connector
Front USB connector
Front panel connector
Battery
SATA IDE connectors (2)
Clear CMOS/Recovery jumper
10
11
12
13
14
15
16
Modem daughter card (MDC)
connector
Express card USB connector
Express card PCIe connector
Media card reader connector
Internal speaker connector
Front audio connector
Internal power distribution connector
System fan connector
Chapter 2. Overview
9
10
Hardware Installation and Replacement Guide
Chapter 3. Installing options and replacing hardware
This chapter provides an introduction to the features and options that are available
for your computer. You can expand the capabilities of your computer by adding or
replacing memory, adapters, and drives. When installing an option, use these
instructions along with the instructions that come with the option.
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
Note: Use only parts provided by Lenovo.
Installing external options
External speakers, a printer, or a scanner can be connected to your computer. For
some external options, you must install additional software in addition to making
the physical connection. When adding an external option, see “Locating connectors
on the rear of your computer” on page 6 and “Locating controls and connectors on
the front of your computer” on page 5 to identify the required connector, and then
use the instructions that are included with the option to help you make the
connection and install any software or device drivers that are required for the
option.
Removing the cover
Important
Turn off the computer and wait 3 to 5 minutes to let the computer cool
before removing the computer cover.
This section provides instructions on how to remove the computer cover.
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your
operating system, and turn off all attached devices and the computer.
2. Unplug all power cords from electrical outlets.
3. Disconnect the cables attached to the computer. This includes power cords,
input/output (I/O) cables, and any other cables that are connected to the
computer. See “Locating controls and connectors on the front of your
computer” on page 5 and “Locating connectors on the rear of your computer”
on page 6.
4. Remove any locking devices, such as a cable lock that secures the computer
cover.
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
11
5. Press the cover-release button on the side of the cover and pivot the computer
cover outward.
6. Before completely removing the computer cover, disconnect all the cables from
the system board.
Installing internal options
Important
Read “Handling static-sensitive devices” on page 4 before removing the
computer cover.
Installing memory
Your computer has two connectors for installing small outline dual inline memory
modules (SODIMMs) that provide up to a maximum of 4.0 GB of system memory.
v Use 1.8 V, 200-pin double data rate 2 synchronous dynamic random access
memory (DDR2 SDRAM).
v Use 256 MB, 512 MB, 1 GB, or 2 GB memory modules in any combination up to
a maximum of 4.0 GB.
Note: If there is an available memory connector, continue with installing a
memory module. To replace a memory module, go to “Replacing a memory
module” on page 19.
This section provides instructions on how to install a memory module.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the memory connectors. See “Identifying parts on the system board” on
page 9.
12
Hardware Installation and Replacement Guide
3. Insert the notched end 2 of the memory module into the socket 1. Press the
memory module firmly, and pivot the memory module until it snaps into place.
Make sure that the memory module is firmly fixed in the connector and does
not move easily.
Figure 5. Installing a memory module
4. To complete the installation, go to Chapter 4, “Completing the parts
replacement,” on page 27.
Replacing the battery
Your computer has a special type of memory that maintains the date, time, and
settings for built-in features, such as parallel-port assignments (configuration). A
battery keeps this information active when you turn off the computer.
The battery normally requires no charging or maintenance throughout its life;
however, no battery lasts forever. If the battery fails, the date, time, and
configuration information (including passwords) are lost. An error message is
displayed when you turn on the computer.
Refer to the "Lithium battery notice" in the Safety and Warranty Guide for
information about replacing and disposing of the battery.
This section provides instructions on how to replace the battery.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the battery. See “Identifying parts on the system board” on page 9.
Chapter 3. Installing options and replacing hardware
13
3. Remove the old battery.
Figure 6. Removing the battery
4. Install the new battery.
Figure 7. Installing the battery
5. Replace the computer cover, and connect all the cables. See Chapter 4,
“Completing the parts replacement,” on page 27.
Note: When the computer is turned on for the first time after battery
replacement, an error message might be displayed. This is normal after
replacing the battery.
6. Turn on the computer and all attached devices.
7. Use the Setup Utility program to set the date and time and any passwords. See
"Using the Setup Utility" in your User Guide.
Replacing the heat sink
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the heat sink.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the heat sink. See “Identifying parts on the system board” on page 9.
14
Hardware Installation and Replacement Guide
3. Remove the four screws securing the heat sink to the retention module on the
system board.
Figure 8. Removing the heat sink held in place by screws
4. Lift the failing heat sink off the system board.
5. Position the new heat sink on the retention module so that the four screws are
aligned with the posts on the system board. Tighten the four screws to the heat
sink to the system board.
Figure 9. Replacing the heat sink with screws
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Chapter 3. Installing options and replacing hardware
15
Replacing a hard disk drive
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the hard disk drive.
Important
When you receive a new hard disk drive, you also receive a set of Product
Recovery discs. The set of Product Recovery discs will enable you to restore the
contents of the hard disk to the same state as when your computer was
originally shipped from the factory. For more information on recovering
factory-installed software, refer to “Recovering software” in your User Guide.
To replace the hard disk drive:
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Disconnect the power cable from the optical drive.
3. Place your finger on the tab located on the front of the hard disk drive and
push upward. Then press inward on the side tabs and pivot the hard disk
drive upward to remove.
4. Remove the failing hard disk drive from the chassis.
5. Disconnect the signal and power cables from the hard disk drive.
6. Remove the hard disk drive from the plastic bracket by flexing the sides of the
bracket enough to slide it free of the hard disk drive.
16
Hardware Installation and Replacement Guide
7. To install the new hard disk drive into the plastic bracket 1, flex the bracket
and align the pins on the bracket with the holes in the hard disk drive. See
Figure 10. Do not touch the circuit board 2 on the bottom of the hard disk
drive.
Figure 10. Installing the hard disk drive into the bracket
8.
9.
10.
11.
Connect the signal and power cables to the rear of the new hard disk drive.
Slide the new hard disk drive into the drive bay until it snaps into position.
Reconnect the power cable to the optical drive.
Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing an optical drive
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace an optical drive.
1. Remove the computer cover. See “Removing the cover” on page 11.
Chapter 3. Installing options and replacing hardware
17
2. Remove the front bezel by releasing the two tabs and pivoting the bezel
forward to remove completely.
Figure 11. Removing the front bezel
3. Disconnect the signal and power cables from the rear of the optical drive.
4. Press the blue release button and remove the optical drive out the front of the
computer.
Figure 12. Removing the optical drive
5. Remove the retainer bracket from the failing drive and install it on the new
optical drive.
Figure 13. Retainer bracket for optical drive
18
Hardware Installation and Replacement Guide
6. Slide the new optical drive into the drive bay until it snaps into position.
Figure 14. Replacing the optical drive
7. Connect the signal and power cables to the drive.
8. Replace the front bezel.
9. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing a memory module
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace a memory module.
Note: Your computer has support for two memory modules.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the memory connector. See “Identifying parts on the system board” on
page 9.
Chapter 3. Installing options and replacing hardware
19
3. Remove the memory module being replaced by opening the retaining clips as
shown.
Figure 15. Removing the memory module
4. Insert the notched end 2 of the memory module into the socket 1. Press the
memory module firmly, and pivot the memory module until it snaps into place.
Make sure that the memory module is firmly fixed in the connector and does
not move easily.
Figure 16. Installing the new memory module
5. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing the AC power adapter
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the AC power adapter.
1. Turn off the computer and disconnect the AC power cord from the electrical
outlet.
2. Locate the power adapter connector. See “Locating connectors on the rear of
your computer” on page 6.
20
Hardware Installation and Replacement Guide
3. Disconnect the AC power adapter cable from the power adapter connector.
4. Connect the new AC power adapter cable to the power adapter connector on
the chassis. Then route the cable through the power cable clip 1 on the rear
of the chassis to secure it in place.
5. Connect the power cord to the electrical outlet.
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing the modem
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the modem.
1. Remove the computer cover. See “Removing the cover” on page 11.
Chapter 3. Installing options and replacing hardware
21
2. Locate the MDC connector. See “Identifying parts on the system board” on
page 9. The modem card 1 will be connected to the MDC connector.
Figure 17. Locating the modem daughter card on the system board
3. Disconnect the RJ11 modem cable from the modem card.
4. Remove the two screws that secure the modem card to the system board.
5. Remove the modem card from the system board.
6. Install the new modem card to the MDC connector on the system board by
aligning the holes in the modem card with the pins in the system board.
7. Install the two screws to secure the modem card to the system board.
8. Connect the RJ11 modem cable to the modem card.
22
Hardware Installation and Replacement Guide
9. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing the system fan assembly
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the system fan assembly.
Note: When you receive your new system fan assembly, you will receive new
rubber mounts.
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the system fan connector. See “Identifying parts on the system board”
on page 9.
3. Disconnect the system fan assembly cable from the system board. See
“Identifying parts on the system board” on page 9.
4. You might have to remove the hard disk drive to gain access to the system
fan. See “Replacing a hard disk drive” on page 16.
5. Remove the two rubber mounts from the system fan assembly that connect to
the chassis by breaking them or cutting them with a pair of scissors. Once this
has been done, remove the rubber mounts from the rear of the chassis.
6. Pull the system fan assembly outward from the chassis. Then lift the system
fan assembly out of the chassis.
Figure 18. Removing the system fan assembly
Chapter 3. Installing options and replacing hardware
23
7. When installing your new system fan assembly, use the new rubber mounts
that come with the new system fan.
8. Install the two short rubber mounts in the new system fan assembly as shown
in Figure 19.
Figure 19. Installing the short rubber mounts
9. Install the two long rubber mounts into the rear of the chassis as shown in
Figure 20. Push the mounts through the holes of the chassis. If necessary, pull
the mounts through the holes from inside the chassis.
10. To install the new system fan assembly into the chassis, align the open holes
in the system fan assembly with the long rubber mounts in the chassis. Pull
the rubber mounts through the holes in the system fan assembly until the
system fan is in place.
Figure 20. Replacing the system fan assembly
11. Once the system fan assembly is secure, you should remove the extra rubber
from the mounts.
12. Connect the system fan assembly cable to the system fan connector on the
system board.
13. Replace the hard disk drive, if it was removed.
14. Go to Chapter 4, “Completing the parts replacement,” on page 27.
24
Hardware Installation and Replacement Guide
Replacing the keyboard
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace a keyboard.
1. Remove any media (DVDs, CDs, or tapes) from the drives, shut down your
operating system, and turn off all attached devices and the computer.
2. Unplug all power cords from electrical outlets.
3. Locate the keyboard connector. See “Locating connectors on the rear of your
computer” on page 6 or “Locating controls and connectors on the front of your
computer” on page 5.
Figure 21. Keyboard connectors, USB
4. Disconnect the failing keyboard cable from the computer.
5. Connect the new keyboard to the appropriate connector on the computer.
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Replacing the mouse
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace a mouse.
1. Remove any media (DVDs, CDs, or tapes) from the drives, shut down your
operating system, and turn off all attached devices and the computer.
2. Unplug all power cords from electrical outlets.
Chapter 3. Installing options and replacing hardware
25
3. Locate the mouse connector. See “Locating connectors on the rear of your
computer” on page 6 or “Locating controls and connectors on the front of your
computer” on page 5.
Figure 22. Mouse connectors, USB
4. Disconnect the failing mouse cable from the computer.
5. Connect the new mouse to the appropriate connector on the computer.
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
26
Hardware Installation and Replacement Guide
Chapter 4. Completing the parts replacement
After replacing the parts, you need to close the cover and reconnect cables,
including telephone lines and power cords. Also, depending on the part that was
replaced, you might need to confirm the updated information in the Setup Utility
program. Refer to ″Using the Setup Utility″ in the User Guide for this product.
This section provides instructions on how to complete the parts replacement.
1. Ensure that all components have been reassembled correctly and that no tools
or loose screws are left inside your computer. See “Locating components” on
page 8 for the location of various components.
2. Make sure that the cables are routed correctly before closing the computer
cover.
Figure 23. Routing the cables
Important
Correctly route all power supply cables to avoid interference with
replacing the computer cover. Keep cables clear of the hinges and sides of
the computer chassis.
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
27
3. Position the computer cover on the chassis so that the rail guide on the bottom
of the computer cover engages the rail. Then, push the computer cover closed
until it snaps into position.
Figure 24. Closing the computer cover
4. If a cover lock is installed, lock the cover.
5. Reconnect the external cables and power cords to the computer. See “Locating
connectors on the rear of your computer” on page 6.
6. To update your configuration, see ″Using the Setup Utility″ in your User Guide.
Note: In most areas of the world, Lenovo requires the return of the defective CRU.
Information about this will come with the CRU or will come a few days after the
CRU arrives.
Obtaining device drivers
You can obtain device drivers for operating systems that are not preinstalled at
http://www.lenovo.com/support/ on the World Wide Web. Installation
instructions are provided in README files with the device-driver files.
28
Hardware Installation and Replacement Guide
Chapter 5. Security features
To help prevent hardware theft and unauthorized access to your computer, several
security lock options are available. In addition to a physical lock, unauthorized use
of your computer can be prevented by a software lock that locks the keyboard
until a correct password is typed in.
Make sure that any security cables that you install do not interfere with other
computer cables.
Integrated cable lock
An integrated cable lock (sometimes referred to as the Kensington lock), can be
used to secure your computer to a desk, table, or other non-permanent fixture. The
cable lock attaches to a security slot at the rear of your computer and is operated
with a key. The cable lock also locks the buttons used to open the computer cover.
This is the same type of lock used with many laptop computers. You can order a
security cable directly from Lenovo. Go to
http://www.lenovo.com/support/ and search on Kensington.
Figure 25. Installing cable lock
Password protection
To deter unauthorized use of your computer, you can use the Setup Utility
program to set a password. When you turn on your computer, you are prompted
to type the password to unlock the keyboard for normal use.
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
29
Erasing a lost or forgotten password (clearing CMOS)
This section applies to lost or forgotten passwords. For more information about
lost or forgotten passwords, go to the ThinkVantage™ Productivity Center program.
To erase a forgotten password:
1. Remove the computer cover. See “Removing the cover” on page 11.
2. Locate the Clear CMOS/Recovery jumper on the system board. See
“Identifying parts on the system board” on page 9.
3. Move the jumper from the standard position (pins 1 and 2) to the maintenance
or configure position (pins 2 and 3).
4. Replace the computer cover and connect the power cord. See Chapter 4,
“Completing the parts replacement,” on page 27.
5. Restart the computer, leave it on for approximately 10 seconds. Turn off the
computer by holding the power switch for approximately 5 seconds. The
computer will turn off.
6. Repeat steps 1 through 2 on page 30.
7. Move the Clear CMOS/Recovery jumper back to the standard position (pins 1
and 2).
8. Replace the computer cover and connect the power cord. See Chapter 4,
“Completing the parts replacement,” on page 27.
30
Hardware Installation and Replacement Guide
Appendix. Notices
Lenovo may not offer the products, services, or features discussed in this
document in all countries. Consult your local Lenovo representative for
information on the products and services currently available in your area. Any
reference to a Lenovo product, program, or service is not intended to state or
imply that only that Lenovo product, program, or service may be used. Any
functionally equivalent product, program, or service that does not infringe any
Lenovo intellectual property right may be used instead. However, it is the user’s
responsibility to evaluate and verify the operation of any other product, program,
or service.
Lenovo may have patents or pending patent applications covering subject matter
described in this document. The furnishing of this document does not give you
any license to these patents. You can send license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some
jurisdictions do not allow disclaimer of express or implied warranties in certain
transactions, therefore, this statement may not apply to you.
This information could include technical inaccuracies or typographical errors.
Changes are periodically made to the information herein; these changes will be
incorporated in new editions of the publication. Lenovo may make improvements
and/or changes in the product(s) and/or the program(s) described in this
publication at any time without notice.
The products described in this document are not intended for use in implantation
or other life support applications where malfunction may result in injury or death
to persons. The information contained in this document does not affect or change
Lenovo product specifications or warranties. Nothing in this document shall
operate as an express or implied license or indemnity under the intellectual
property rights of Lenovo or third parties. All information contained in this
document was obtained in specific environments and is presented as an
illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it
believes appropriate without incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for
convenience only and do not in any manner serve as an endorsement of those Web
sites. The materials at those Web sites are not part of the materials for this Lenovo
product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled
environment. Therefore, the result obtained in other operating environments may
© Lenovo 2005, 2007. Portions © IBM Corp. 2005.
31
vary significantly. Some measurements may have been made on development-level
systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurements may have been
estimated through extrapolation. Actual results may vary. Users of this document
should verify the applicable data for their specific environment.
Television output notice
The following notice applies to models that have the factory-installed
television-output feature.
This product incorporates copyright protection technology that is protected by
method claims of certain U.S. patents and other intellectual property rights owned
by Macrovision Corporation and other rights owners. Use of this copyright
protection technology must be authorized by Macrovision Corporation, and is
intended for home and other limited viewing uses only unless otherwise
authorized by Macrovision Corporation. Reverse engineering or disassembly is
prohibited.
Trademarks
The following terms are trademarks of Lenovo in the United States, other
countries, or both:
Lenovo
ThinkCentre
ThinkVantage
IBM is a trademark of International Business Machines Corporation in the United
States, other countries, or both.
Other company, product, or service names may be trademarks or service marks of
others.
32
Hardware Installation and Replacement Guide
Part Number: 43C6226
Printed in USA
(1P) P/N: 43C6226

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