Lenovo ThinkCentre A61 User Manual Page 1

ThinkCentreHardware Installation and Replacement GuideMachine Types 9126, 9128, 9130, 9135, 9137, 9140, 9142, 9144, 9157,9159, 9169, 9189

2 Hardware Installation and Replacement Guide

Chapter 2. Overview This guide is intended to be used by customers who are installing or replacing Customer Replaceable Units (CRUs)

v Limit your movement. Movement can cause static electricity to build up around you. v Always handle parts and other computer c

Locating connectors on the rear of your computer Figure 2 shows the location of connectors on the rear of the computer. 1 Stan

Locating components Figure 3 will help you locate the various components in your computer. 1 Fan plenum, fan, and heat sink 7

Identifying parts on the system board The system board (sometimes called the planar or motherboard) is the main circuit board in yo

8 Hardware Installation and Replacement Guide

Chapter 3. Installing options and replacing hardware Attention Do not open your computer or attempt any repair before reading the “

5. Press the cover-release button on the top of the computer cover, slide the cover to the rear, and remove it. If your comput

3. In some models, you might have to remove the PCI adapter in order to gain access to the battery. 4. Slide the drive bay

v Use 1.8 V, 240-pin, double data rate 2 synchronous dynamic random access memory (DDR2 SDRAM). v Use 256 MB, 512 MB, 1 GB,

5. Open the retaining clips. 6. Position the memory module over the memory connector. Make sure that the notch 1 on the mem

2. Open the adapter latch and remove the connector cover for the appropriate expansion connector. 3. Remove the adapter from it

Internal drives are devices that your computer uses to read and store data. You can add drives to your computer to increase stora

The following illustration shows the locations of the drive bays. The following list describes the types and size of drives you

Note: When installing the Universal Adapter Bracket, if the retaining bracket is not available, install the screws to secure the ad

2. Locate the available SATA connector on the system board. See “Identifying parts on the system board” on page 7. 3. Connect

7. Align the drive bay assembly with the two slots and rails on the sides of the chassis and connect the flat cable to the n

7. Replace the computer cover, and connect the cables. See Chapter 4, “Completing the parts replacement,” on page 31. Note: When

5. Install the new drive into the blue bracket, flex the bracket, and align the pins 1 through 4on the bracket with the ho

ThinkCentre Hard ware Installation and Replacement Gui de

9. Align the drive bay assembly with the two slots and rails on the sides of the chassis, reconnect the drive cables on the s

7. Align the drive bay assembly with the two slots and rails on the sides of the chassis, reconnect the drive cables on the s

6. Install the new optical drive into the bay until it snaps into position. 7. Align the drive bay assembly with the two sl

5. Lift the heat sink and fan assembly off the system board. 6. Position the new heat sink on the microprocessor socket, and

Replacing the system fan assembly Attention Do not open your computer or attempt any repair before reading the “Important safety inf

Replacing a memory module Attention Do not open your computer or attempt any repair before reading the “Important safety information”

6. Align the drive bay assembly with the two slots and rails on the sides of the chassis, reconnect the drive cables on the s

5. Go to Chapter 4, “Completing the parts replacement,” on page 31.Replacing a keyboard Attention Do not open your computer or a

6. Go to Chapter 4, “Completing the parts replacement,” on page 31.Replacing a mouse Attention Do not open your computer or atte

Chapter 4. Completing the parts replacement After working with parts, you need to replace the computer cover and reconnect any cable

Note Before using this information and the product it supports, be sure to read and understand the Safety and Warranty Guide for t

Note: In most areas of the world, Lenovo requires the return of the defective CRU. Information about this will come with the CRU

Chapter 5. Security features To help prevent hardware theft and unauthorized access to your computer, several security lock options a

Padlock Your computer is equipped with a padlock loop such that the cover cannot be removed when a padlock is installed. Password

3. Locate the Clear CMOS/Recovery jumper on the system board. See “Identifying parts on the system board” on page 7. 4. Move t

36 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

vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measuremen

Part Number: 43C4804 Printed in USA (1P) P/N: 43C4804

Contents Figures . . . . . . . . . . . . . . .v Chapter 1. Important safety information 1 Chapter 2. Overview . . . . .

iv Hardware Installation and Replacement Guide

Figures 1. Controls and connectors . . . . . . . . .4 2. Connector locations . . . . . . . . . .5 3. Component loc

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 rela