Lenovo THINKCENTRE 9120 User Manual

ThinkCentreHardware Installation and Replacement GuideMachine Types 9120, 9127, 9129, 9134, 9136, 9139, 9141, 9143, 9156,9158, 9171, 9191

2 Hardware Installation and Replacement Guide

Chapter 2. Overview This guide provides information about replacing Customer Replaceable Units (CRUs). This guide does not include proc

Handling static-sensitive devices Do not open the static-protective package containing the new part until the defective part has been

Locations This chapter provides illustrations to help locate the various connectors, controls, and components of the computer. Locating

Locating connectors on the rear of your computer Figure 2 shows the location of connectors on the rear of your computer. Some conn

Connector Description Standard mouse connector Used to attach a mouse, trackball, or other pointing device that uses a standard mouse

Locating components To remove the computer cover, see “Removing the cover” on page 11. Figure 3 shows the location of the various

Identifying parts on the system board Figure 4 shows the location of parts on the system board. 1 Microprocessor fan connector

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 avai

5. If there are thumbscrews securing the cover, remove them. 6. Press the cover-release button on the side of the computer cov

2. Remove the front bezel by releasing the three plastic tabs on the left side and pivoting the bezel outward. Carefully set th

Installing internal options Important Read “Handling static-sensitive devices” on page 4 before removing the computer cover.Installing

4. Make sure that the notch 1 on the memory module aligns correctly with the connector key2 on the system board. Push the

2. At the rear of the computer, press the release button1 to open the adapter latch2 and remove the slot cover. 3. Remove

5. Pivot the adapter latch to the closed position to secure the adapters. What to do next: v To work with another option,

Installing internal drives This section provides information and instructions for installing internal drives. Internal drives are device

Figure 11 shows the location of the drive bays. The following list describes the types and size of drives that you can install

2. Remove the front bezel by releasing the three plastic tabs on the left side and pivoting the bezel outward. Carefully set th

7. For a 5.25-inch drive, install a retainer bracket on the side of the drive. 8. For a 3.5-inch drive, you must use a Un

ThinkCentre Hard ware Installation and Replacement Gui de

3. Connect one end of the signal cable to the drive and the other to the IDE connector on the system board. 4. Locate the e

Replacing the battery Your computer has a special type of memory that maintains the date, time, and settings for built-in features,

Replacing the power supply assembly Attention Do not open your computer or attempt any repair before reading the “Important safety i

Replacing the heat sink Attention Do not open your computer or attempt any repair before reading the “Important safety information”

7. Position the new heat sink on the microprocessor socket and then position the clamp on the plastic retention bracket. Pivot t

3. Press the blue release tab 1 down, slide the hard drive cage 2 back, and pivot it outward. 4. Remove the hard disk

7. To install the new hard disk drive into the blue bracket, flex the bracket and align the pins 1 through 4 on the brack

9. Align the drive cage pivot pin with the slot 1 in the upper drive cage and slide the hard disk drive cage into the chas

Note: If needed, there is a spare retainer bracket 1 attached to the side of the upper drive cage. 4. Remove the retainer bra

7. Go to Chapter 4, “Completing the parts replacement,” on page 43.Replacing the diskette drive Attention Do not open your comput

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

5. Remove the retainer bracket from the failing diskette drive and install it on the new diskette drive. 6. Slide the new dis

4. Position the replacement memory module over the memory connector. Make sure the notch 1 on the memory module aligns correctl

2. At the rear of the computer, press the release button 1to open the adapter latch 2 and remove the adapter by pulling it

3. Install the new adapter into the same adapter connector. 4. Ensure the adapter is fully seated into the adapter connector.

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

6. Pull on the tips of the rubber mounts until the fan assembly is in place. 7. Connect the front fan assembly cable to

3. Pull the rear fan assembly out of the chassis. 4. Install the new rear fan assembly by aligning the rubber mounts of the

5. Pull on the tips of the rubber mounts until the fan assembly is in place. 6. Connect the rear fan assembly cable to the

3. Locate the keyboard connector. See Figure 35.Note: Your keyboard might be connected to a standard keyboard connector 1 or a

Replacing the mouse Attention Do not open your computer or attempt any repair before reading the “Important safety information” in t

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

42 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 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. Move the jumper from the standard position (pins 1 and 2) to the maintenance or configure position (pins 2 and 3). 4. Repl

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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

Index Aadapterconnectors 15 installing 15 adapter latch 16 audio-line-in connector 7 audio-line-out connector 7 Bbattery, replacing 23 bay

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passworderasing 46 lost or forgotten 46 password protection 46 PCI adapter 15 PCI adapter, replacing 33 power supply, replacing 24 prote

Part Number: 43C4834 Printed in USA (1P) P/N: 43C4834

Figures 1. Controls and connectors . . . . . . . . .5 2. Connector locations . . . . . . . . . .6 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