Lenovo ThinkCentre A61e 6418 Parts list manual

Machine Types 6417, 6418, 6449, 6453
ThinkCentre
Hardware Installation and Replacement Guide

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 aGeneral 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 .......3
Handling static-sensitive devices........4
Locations ...............5
Locating controls and connectors on the front of
your computer.............5
Locating connectors on the rear of your computer 6
Locating components ..........8
Identifying parts on the system board .....9
Chapter 3. Installing options and
replacing hardware .........11
Installing external options .........11
Removing the cover ...........11
Installing internal options .........12
Installing memory ...........12
Replacing the battery ...........13
Replacing the heat sink ..........14
Replacing ahard disk drive .........16
Replacing an optical drive .........17
Replacing amemory module ........19
Replacing the AC power adapter .......20
Replacing the modem ...........21
Replacing the system fan assembly ......23
Replacing the keyboard ..........25
Replacing the mouse ...........25
Chapter 4. Completing the parts
replacement ............27
Obtaining device drivers ..........28
Chapter 5. Security features .....29
Integrated cable lock ...........29
Password protection ...........29
Erasing alost or forgotten password (clearing
CMOS) ................30
Appendix. Notices ..........31
Television output notice ..........32
Trademarks ..............32
©Lenovo 2005, 2007. Portions ©IBM Corp. 2005. iii

iv Hardware Installation and Replacement Guide

Figures
1. Controls and connectors.........5
2. Locating the rear connectors .......6
3. Locating components..........8
4. Locating parts on the system board .....9
5. Installing amemory module .......13
6. Removing the battery .........14
7. Installing the battery .........14
8. Removing the heat sink held in place by
screws ..............15
9. Replacing the heat sink with screws ....15
10. Installing the hard disk drive into the bracket 17
11. Removing the front bezel ........18
12. Removing the optical drive .......18
13. Retainer bracket for optical drive .....18
14. Replacing the optical drive .......19
15. Removing the memory module ......20
16. Installing the new memory module ....20
17. Locating the modem daughter card on the
system board ............22
18. Removing the system fan assembly ....23
19. Installing the short rubber mounts .....24
20. Replacing the system fan assembly.....24
21. Keyboard connectors, USB .......25
22. Mouse connectors, USB ........26
23. Routing the cables ..........27
24. Closing the computer cover .......28
25. Installing cable lock ..........29
©Lenovo 2005, 2007. Portions ©IBM Corp. 2005. v

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 acopy 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

2Hardware 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:
vBattery
vHeat sink
vHard disk drive
vOptical drive
vMemory module
vSystem fan assembly
vAC power adapter
vModem
vKeyboard
vMouse
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:
vCRU removal and installation information
vCRU removal and installation videos
vPublications
vTroubleshooting information
vParts information
vDownloads and drivers
vLinks to other useful sources of information
vSupport 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:
vLimit your movement. Movement can cause static electricity to build up around
you.
vAlways handle parts and other computer components carefully. Handle
adapters, memory modules, system boards, and microprocessors by the edges.
Never touch any exposed circuitry.
vPrevent others from touching the parts and other computer components.
vBefore you replace anew part, touch the static-protective package containing the
part to ametal 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.
vWhen 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.
vDo not place the part on the computer cover or other metal surface.
4Hardware 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 1shows 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.
1 USB connector 3 Headphone connector
2 Microphone connector 4 USB connector
Figure 1. Controls and connectors
Chapter 2. Overview 5

Locating connectors on the rear of your computer
Figure 2shows 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.
1 Cable lock latch 6 Microphone connector
2 Power adapter connector 7 Audio line out connector
3 Monitor connector 8 Audio line in connector
4 USB connectors (4) 9 RJ11 modem connector
5 Ethernet connector
Figure 2. Locating the rear connectors
6Hardware Installation and Replacement Guide

Connector Description
USB connectors Used to attach adevice that requires aUniversal Serial Bus
(USB) connection, such as aUSB keyboard, USB mouse, USB
scanner or USB printer. If you have more than six USB devices,
you can purchase aUSB hub, which you can use to connect
additional USB devices.
Ethernet connector Used to attach an Ethernet cable for alocal area network
(LAN).
Note: To operate the computer within FCC Class Blimits, use
aCategory 5Ethernet cable.
Audio-line-in connector Used to receive audio signals from an external audio device,
such as astereo system. When you attach an external audio
device, acable 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 astereo system or other external
recording device.
Microphone connector Used to attach amicrophone 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.
1 Optical drive
2 System fan assembly
3 Hard disk drive
Figure 3. Locating components
8Hardware 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 4shows the location of parts on the system board for some computer
models.
1 Microprocessor and heat sink 9 Modem daughter card (MDC)
connector
2 Memory connectors (2) 10 Express card USB connector
3 Thermal sense cable connector 11 Express card PCIe connector
4 Front USB connector 12 Media card reader connector
5 Front panel connector 13 Internal speaker connector
6 Battery 14 Front audio connector
7 SATA IDE connectors (2) 15 Internal power distribution connector
8 Clear CMOS/Recovery jumper 16 System fan connector
Figure 4. Locating parts on the system board
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 acopy 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, aprinter, or ascanner 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 6and “Locating controls and connectors on
the front of your computer” on page 5to 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 3to 5minutes 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 5and “Locating connectors on the rear of your computer”
on page 6.
4. Remove any locking devices, such as acable 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 4before removing the
computer cover.
Installing memory
Your computer has two connectors for installing small outline dual inline memory
modules (SODIMMs) that provide up to amaximum of 4.0 GB of system memory.
vUse 1.8 V, 200-pin double data rate 2synchronous dynamic random access
memory (DDR2 SDRAM).
vUse 256 MB, 512 MB, 1GB, or 2GB memory modules in any combination up to
amaximum of 4.0 GB.
Note: If there is an available memory connector, continue with installing a
memory module. To replace amemory module, go to “Replacing amemory
module” on page 19.
This section provides instructions on how to install amemory 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