Lenovo Personal Computer 9948 User Manual

ThinkCentre  
Hardware Installation and Replacement Guide  
Machine Types 6176, 6179, 7064, 7094, 9349, 9356, 9357, 9439, 9488,  
9702, 9708, 9709, 9789, 9851, 9948  
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ThinkCentre  
Hardware Installation and Replacement  
Guide  
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Note  
Before using this information and the product it supports, be sure to read and understand the Safety and Warranty Guide for  
First Edition (February 2008)  
© Copyright Lenovo 2005, 2008.  
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 GSAcontract, use, reproduction, or disclosure is subject to restrictions  
set forth in Contract No. GS-35F-05925.  
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Contents  
© Lenovo 2005, 2008. Portions © IBM Corp. 2005.  
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iii  
iv Hardware Installation and Replacement Guide  
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Figures  
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v
 
vi Hardware Installation and Replacement Guide  
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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:  
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1
 
2
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Chapter 2. Overview  
This guide provides information about replacing Customer Replaceable Units  
(CRUs).  
Note: Use only parts provided by Lenovo.  
This guide contains instructions for installing or replacing the following parts:  
v Front Bezel  
v Battery  
v Power supply  
v Heat sink  
v Primary hard disk drive  
v Secondary hard disk drive  
v Optical drive  
v Diskette drive  
v Memory modules  
v PCI adapter  
v Front fan assembly  
v Rear fan assembly  
v Keyboard  
v 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, go to:  
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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.  
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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  
ꢀ1ꢁ  
ꢀ2ꢁ  
USB connector  
Headphone connector  
ꢀ3ꢁ  
ꢀ4ꢁ  
Microphone connector  
USB connector  
Chapter 2. Overview  
5
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Locating connectors on the rear of your computer  
Figure 2 shows the location of connectors on the rear of your computer. 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. Rear connector locations  
ꢀ1ꢁ  
Voltage selection switch  
(some models)  
ꢀ9ꢁ  
Ethernet connector  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
ꢀ8ꢁ  
Power connector  
Standard mouse connector  
Standard keyboard connector ꢀ12ꢁ  
Serial connector  
Parallel connector  
VGA monitor connector  
USB connectors (2)  
ꢀ10ꢁ  
ꢀ11ꢁ  
USB connectors (2)  
Microphone connector  
Audio line out connector  
Audio line in connector  
PCI Express x16 graphics adapter connector  
PCI Express x1 adapter connector  
PCI adapter connectors (2)  
ꢀ13ꢁ  
ꢀ14ꢁ  
ꢀ15ꢁ  
ꢀ16ꢁ  
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Connector  
Description  
Standard mouse connector Used to attach a mouse, trackball, or other pointing device that  
uses a standard mouse connector.  
Standard keyboard  
connector  
Used to attach a keyboard that uses a standard keyboard  
connector.  
Serial connector  
Parallel connector  
USB connectors  
Used to attach an external modem, serial printer, or other  
devices that use a 9-pin serial connector.  
Used to attach a parallel printer, parallel scanner, or other  
devices that use a 25-pin parallel connector.  
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-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.  
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.  
Chapter 2. Overview  
7
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Locating components  
To open the computer cover, see “Removing the cover” on page 12.  
Figure 3 shows the location of the various components in your computer.  
Figure 3. Component locations  
ꢀ1ꢁ  
ꢀ2ꢁ  
Microprocessor fan and heat  
sink  
Memory modules (2)  
ꢀ6ꢁ  
ꢀ7ꢁ  
PCI adapter connector  
PCI Express x16 graphics adapter  
connector  
ꢀ3ꢁ  
ꢀ4ꢁ  
Battery  
PCI Express x1 adapter  
connector  
ꢀ8ꢁ  
ꢀ9ꢁ  
Cover presence (Intrusion) switch  
Rear fan assembly  
ꢀ5ꢁ  
PCI adapter card  
ꢀ10ꢁ  
Power supply  
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Identifying parts on the system board  
Figure 4 shows the location of parts on the system board.  
Figure 4. System board parts locations  
ꢀ1ꢁ  
ꢀ2ꢁ  
ꢀ3ꢁ  
ꢀ4ꢁ  
ꢀ5ꢁ  
ꢀ6ꢁ  
ꢀ7ꢁ  
ꢀ8ꢁ  
ꢀ9ꢁ  
ꢀ10ꢁ  
Microprocessor and heat sink  
Microprocessor fan connector  
Memory connector 1  
Memory connector 2  
Power connector  
Diskette drive connector  
IDE connector  
Power fan connector  
Serial ATA connectors (4)  
Clear CMOS/Recovery jumper  
ꢀ13ꢁ  
ꢀ14ꢁ  
ꢀ15ꢁ  
ꢀ16ꢁ  
ꢀ17ꢁ  
ꢀ18ꢁ  
ꢀ19ꢁ  
ꢀ20ꢁ  
ꢀ21ꢁ  
ꢀ22ꢁ  
Front USB connector  
TCM header connector  
Serial (COM) connector  
Internal speaker connector  
Front audio connector  
CD_IN connector  
PCI adapter connectors (2)  
PCI Express x1 adapter connector  
Battery  
PCI Express x16 graphics adapter  
connector  
ꢀ11ꢁ  
ꢀ12ꢁ  
Front panel connector  
Front USB connector  
ꢀ23ꢁ  
ꢀ24ꢁ  
12 V power connector  
System fan connector  
Chapter 2. Overview  
9
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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  
memory, adapters, or 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  
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  
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.  
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11  
 
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  
4. Remove any locking devices, such as a cable lock that secures the computer  
cover.  
5. If there are thumbscrews securing the cover, remove them.  
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6. Press the cover-release button on the side of the cover and slide the computer  
cover to the rear to remove.  
Figure 5. Removing the computer cover  
Chapter 3. Installing options and replacing hardware 13  
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Removing and replacing the front bezel  
This section provides instructions on how to remove and replace the front bezel.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Remove the front bezel by releasing the three plastic tabs on the left side and  
pivoting the bezel outward. Carefully set the bezel to the side without  
disconnecting the power switch and LED assembly cable.  
Figure 6. Removing the front bezel  
3. To reinstall the bezel, align the plastic tabs on the right side of the bezel with  
the corresponding holes in the chassis, then pivot it inward until it snaps into  
position on the left side.  
4. To complete the installation, go to Chapter 4, “Completing the parts  
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Installing internal options  
Important  
computer cover.  
Installing a memory module  
Your computer has two connectors for installing double data rate 2 dual inline  
memory modules (DDR2 DIMMs) that provide up to a maximum of 4.0 GB of  
system memory.  
When installing memory modules, the following rules apply:  
v Use 1.8 V, 240-pin double data rate 2 synchronous dynamic random access  
memory (DDR2 SDRAM).  
v Use 512 MB, 1.0 GB, or 2.0 GB memory modules in any combination up to a  
maximum of 4.0 GB.  
Note: Only DDR2 SDRAM DIMMs can be used.  
To install a memory module:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Locate the memory connectors. See “Identifying parts on the system board” on  
3. Open the retaining clips as shown.  
Figure 7. Opening the retainer clips  
Chapter 3. Installing options and replacing hardware 15  
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4. Position the new memory module over the memory connector. Make sure the  
notch ꢀ1ꢁ on the memory module aligns correctly with the connector key ꢀ2ꢁ  
on the system board. Push the memory module straight down into the  
connector until the retaining clips close.  
Figure 8. Installing the memory module  
Installing PCI adapters  
This section provides information and instructions for installing PCI adapters. Your  
computer has two expansion connectors for PCI adapters, one for a PCI Express  
x16 graphics adapter, and one for a PCI Express x1 adapter.  
To install a PCI adapter:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
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2. At the rear of the computer, press the release buttonꢀ1ꢁ to open the adapter  
latch ꢀ2ꢁ and remove the slot cover.  
Figure 9. Opening the adapter latch  
Chapter 3. Installing options and replacing hardware 17  
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3. Remove the adapter from its static-protective package.  
4. Install the adapter into the appropriate connector on the system board.  
5. Pivot the adapter latch to the closed position to secure the adapters.  
Figure 10. Closing the adapter latch  
What to do next:  
v To work with another option, go to the appropriate section.  
v To complete the installation, go to Chapter 4, “Completing the parts  
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Installing internal drives  
This section provides information and instructions for installing internal drives.  
Internal drives are devices that your computer uses to read and store data. You can  
add drives to your computer to increase storage capacity and to enable your  
computer to read other types of media. Some of the types of drives that are  
available for your computer are:  
v Serial Advanced Technology Attachment (SATA) hard disk drives  
v SATA optical drives, such as CD drives or DVD drives  
v Removable media drives  
Note: These types of drives are also referred to as integrated drive electronics  
(IDE) drives.  
Internal drives are installed in bays. In this book, the bays are referred to as bay 1,  
bay 2, and so on.  
When you install an internal drive, it is important to note the type and size of  
drive that you can install in each bay. Also, it is important to correctly connect the  
internal drive cables to the installed drive.  
Chapter 3. Installing options and replacing hardware 19  
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Drive specifications  
Your computer comes with the following factory-installed drives:  
v An optical drive in bay 1 (some models)  
v A 3.5-inch diskette disk drive in bay 3 (some models)  
v A 3.5-inch primary hard drive in bay 4  
Any bay that does not have a drive installed has a static shield and bay panel  
installed.  
Figure 11 shows the location of the drive bays.  
Figure 11. Drive bay locations  
The following list describes the types and size of drives that you can install in each  
bay:  
ꢀ1ꢁBay 1 - Maximum height: 43.0 mm (1.7 in.) v Optical drive such as CD drive or DVD  
drive (preinstalled in some models)  
v 5.25-inch hard disk drive  
v 3.5-inch hard disk drive (requires a  
Universal Adapter Bracket, 5.25 to  
3.5-inch)*  
ꢀ2ꢁBay 2 - Maximum height: 43.0 mm (1.7 in.) v Optical drive such as CD drive or DVD  
drive  
v 5.25-inch removable media drive  
v 3.5-inch hard disk drive (requires a  
Universal Adapter Bracket, 5.25 to  
3.5-inch)*  
ꢀ3ꢁBay 3 - Maximum height: 25.8 mm (1.0 in.) 3.5-inch diskette drive (preinstalled in some  
models)  
ꢀ4ꢁBay 4 - Maximum height: 25.8 mm (1.0 in.) 3.5-inch primary SATA hard disk drive  
(preinstalled)  
ꢀ5ꢁBay 5 - Maximum height: 25.8 mm (1.0 in.) 3.5-inch secondary SATA hard disk drive  
(preinstalled in some models)  
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* You can obtain a Universal Adapter Bracket, 5.25 to 3.5-inch from a local  
computer retailer or by contacting the Customer Support Center.  
Installing a drive in bay 1 or bay 2  
To install a drive in bay 1 or bay 2:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
Note: Notice the spare retainer bracket ꢀ1ꢁ attached to the side of the upper  
drive cage.  
Figure 12. Locating the spare retainer bracket  
3. Remove the metal static shield from the drive bay using your fingers to pull it  
outward.  
4. If you are installing a drive with accessible media, such as an optical drive,  
remove the plastic panel in the bezel for bay 2 by squeezing the plastic tabs  
that secure the panel on the inside of the bezel.  
5. Remove the retainer bracket from the upper driver cage by sliding it  
downward.  
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6. For a 5.25-inch drive, install a retainer bracket on the side of the drive.  
Figure 13. Installing a retainer bracket  
7. For a 3.5-inch drive, you must use a Universal Adapter Bracket, 5.25 to  
3.5-inch. You can obtain a Universal Adapter Bracket, 5.25 to 3.5-inch from a  
local computer retailer or by contacting the Customer Support Center. Install a  
retainer bracket on the side of the Universal adapter bracket.  
8. Install the 5.25-inch drive or the adapter bracket and 3.5-inch drive into the  
bay.  
Figure 14. Installing a new drive  
9. To reinstall the bezel, align the plastic tabs on the right side of the bezel with  
the corresponding holes in the chassis, then pivot it inward until it snaps into  
position on the left side.  
Connecting drives  
The steps to connect a drive are different depending on the type of drive you are  
connecting. Use one of the following procedures for your drive connection.  
Connecting a parallel ATA drive:  
1. Locate the two-connector signal cable that comes with your computer or with  
the new drive.  
2. Locate the IDE connector on the system board. See “Identifying parts on the  
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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 extra four-wire power connector labelled P4 and connect it to the  
drive.  
Figure 15. Connecting a parallel ATA drive  
Connecting a serial ATA drive: A serial optical or hard disk drive can be  
connected to any available SATA connector.  
1. Locate the signal cable that comes with the new drive.  
2. Locate the available SATA connector on the system board. See “Identifying  
3. Connect one end of the signal cable to the drive and the other to the available  
SATA connector on the system board.  
4. Locate one of the extra five-wire power connectors and connect it to the drive.  
Figure 16. Connecting a serial ATA drive  
What to do next  
v To work with another option, go to the appropriate section.  
v To complete the installation, go to Chapter 4, “Completing the parts  
Chapter 3. Installing options and replacing hardware 23  
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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.  
To replace the battery:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
3. Remove the old battery.  
Figure 17. Battery removal  
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4. Install the new battery.  
Figure 18. Battery installation  
5. Replace the computer cover, and connect the cables. See Chapter 4,  
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 the User Guide.  
Replacing the power supply 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  
This section provides instruction on how to replace the power supply assembly.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Disconnect the power supply cables from the system board and from all  
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3. Remove the four screws at the rear of the chassis that secure the power  
supply.  
Figure 19. Removing the power-supply-retaining screws  
4. Lift the power supply out of the chassis.  
5. Install the new power supply into the chassis so that the screw holes in the  
power supply align with those in the chassis.  
6. Install the four screws to secure the power supply.  
Note: Use only the screws provided by Lenovo.  
7. Reconnect the power supply connectors to the system board.  
8. Reconnect a power supply connector to each of the drives.  
9. If your computer has a voltage-selection switch, ensure that you set the  
voltage-selection switch to match the voltage available at your electrical outlet.  
If necessary, use a ballpoint pen to slide the switch to a different position.  
v If the voltage supply range in your local country or region is 100–127 V ac,  
set the switch to 115 V.  
v If the voltage supply range is in your local country or region is 200–240 V  
ac, set the switch to 230 V.  
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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  
This section provides instructions on how to replace the heat sink.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Lay the computer on its side.  
4. Disconnect the heat sink and the fan assembly cable from the microprocessor  
fan connector on the system board.  
5. Remove the four screws ꢀ1ꢁ securing the heat sink and fan assembly to the  
system board.  
Figure 20. Removing the heat sink and fan assembly  
Note: You might have to gently twist the heat sink to free it from the  
microprocessor.  
6. Lift the failing heat sink and fan assembly off the system board.  
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7. Position the new heat sink and fan assembly on the plastic retention bracket so  
that the four screws are aligned with the posts on the system board. Tighten  
the four screws ꢀ1ꢁ to secure the heat sink and fan assembly to the system  
board.  
Figure 21. Replacing the heat sink and fan assembly  
8. Connect the heat sink and the fan assembly cable to the microprocessor fan  
connector on the system board.  
Replacing the primary 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  
This section provides instructions on how to replace the primary 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 primary hard disk drive:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Locate the primary hard disk drive. See “Drive specifications” on page 20.  
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3. Disconnect the signal and power cables from the hard disk drive.  
4. Press the blue release tab ꢀ1ꢁ down, slide the hard drive cage ꢀ2ꢁ back, and  
pivot it outward.  
Figure 22. Removing the primary hard disk drive  
5. Remove the hard drive cage from the chassis by simply sliding it outward.  
6. Pull on the blue handle ꢀ3ꢁ to release and remove the hard disk drive from  
the drive cage.  
7. Remove the hard disk drive from the blue plastic bracket by flexing the sides  
of the bracket enough to slide it free of the hard disk drive.  
Chapter 3. Installing options and replacing hardware 29  
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8. To install the new hard disk drive into the blue bracket, flex the bracket and  
align the pins ꢀ1ꢁ through ꢀ4ꢁ on the bracket with the holes in the hard disk  
drive. Do not touch the circuit board ꢀ5ꢁ on the bottom of the hard disk drive.  
Figure 23. Installing the primary hard disk drive into bracket  
9. Slide the new hard disk drive into the drive cage until it snaps into position.  
30 Hardware Installation and Replacement Guide  
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10. Align the drive cage pivot pin with the slot ꢀ1ꢁ in the upper drive cage and  
slide the hard drive cage into the chassis.  
11. Connect the signal and power cables to the rear of the new hard disk drive.  
Figure 24. Installing the primary hard disk drive and bracket  
12. Press down on the metal latch ꢀ2ꢁ, pivot the drive cage into place, and then  
slide it forward until it snaps into position.  
Note: There are two arrows, one on the upper drive cage and one on the hard  
disk drive cage. The arrows are aligned when the hard disk drive is in the  
proper position.  
Replacing the secondary 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  
Chapter 3. Installing options and replacing hardware 31  
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This section provides instructions on how to replace the secondary 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 secondary hard disk drive:  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Locate the secondary hard disk drive. See “Drive specifications” on page 20.  
3. Disconnect the signal and power cables from the hard disk drive.  
4. Press the blue release button to release the hard drive cage from the chassis.  
Figure 25. Removing secondary hard disk drive  
5. Remove the hard drive cage from the chassis by simply sliding it outward.  
6. Pull on the blue handle to release and remove the hard disk drive from the  
hard drive cage.  
7. Remove the hard disk drive from the blue plastic bracket by flexing the sides  
of the bracket enough to slide it free of the hard disk drive.  
32 Hardware Installation and Replacement Guide  
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8. To install the new hard disk drive into the blue bracket, flex the bracket and  
align the pins ꢀ1ꢁ through ꢀ4ꢁ on the bracket with the holes in the hard disk  
drive. Do not touch the circuit board ꢀ5ꢁ on the bottom of the hard disk drive.  
Figure 26. Installing the secondary hard disk drive into bracket  
Chapter 3. Installing options and replacing hardware 33  
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9. Slide the new hard disk drive into the hard drive cage until it snaps into  
position  
10. Install the hard drive cage into the chassis until it snaps into position  
underneath the metal tab. Make sure that the hard drive cage is secure in the  
chassis.  
Figure 27. Installing the secondary hard disk drive and drive cage  
11. Connect the signal and power cables to the rear of the new hard disk drive.  
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  
This section provides instructions on how to replace an optical drive.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Disconnect the signal and power cables from the rear of the optical drive.  
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3. Press the blue release button and remove the optical drive out the front of the  
computer.  
Note: There is a spare retainer bracket ꢀ1ꢁ attached to the side of the upper  
drive cage.  
Figure 28. Removing the optical drive  
4. Remove the retainer bracket from the drive being replaced and install it on the  
new drive.  
Figure 29. Retainer bracket for optical drive  
5. Slide the new optical drive into the bay from the front until it snaps into  
position.  
6. Connect the signal and power cables to the drive.  
Replacing the diskette 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  
Chapter 3. Installing options and replacing hardware 35  
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This section provides instructions on how to replace the diskette drive.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
3. Disconnect the signal and power cables from the rear of the diskette drive.  
4. Press the release button and slide the diskette drive out the front of the  
computer.  
Figure 30. Removing the diskette drive  
5. Remove the retainer bracket from the failing diskette drive and install it on the  
new diskette drive.  
Figure 31. Retainer bracket for diskette drive  
6. Slide the new diskette drive into the drive bay until it snaps into position.  
7. Connect the flat cable to the new diskette drive.  
8. Replace the front bezel.  
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  
36 Hardware Installation and Replacement Guide  
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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 12.  
Note: For this procedure, it helps to lay the computer on its side.  
2. Locate the memory connectors. See “Identifying parts on the system board” on  
3. Remove the memory module being replaced by opening the retaining clips as  
shown.  
Figure 32. Removing the memory module  
4. Position the replacement memory module over the memory connector. Make  
sure the notch ꢀ1ꢁ on the memory module aligns correctly with the connector  
key ꢀ2ꢁ on the system board. Push the memory module straight down into the  
connector until the retaining clips close.  
Figure 33. Installing the memory module  
Chapter 3. Installing options and replacing hardware 37  
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Replacing a PCI 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  
This section provides instructions on how to replace a PCI adapter.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. At the rear of the computer, press the release button ꢀ1ꢁ to open the adapter  
latch ꢀ2ꢁ and remove the adapter by pulling it straight out of the adapter  
connector.  
Figure 34. Removing the PCI adapter  
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3. Remove the new adapter from its static-protective package.  
4. Install the new adapter into the same adapter connector.  
Figure 35. Install a new PCI adapter  
5. Ensure the adapter is fully seated into the adapter connector.  
6. At the rear of the computer, pivot the adapter latch to the closed position to  
secure the adapter.  
Chapter 3. Installing options and replacing hardware 39  
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Replacing the front 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  
This section provides instructions on how to replace the front fan assembly.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
3. Disconnect the front fan assembly cable from the power fan connector on the  
4. The front fan assembly is attached to the chassis by four rubber mounts.  
Remove the front fan assembly by gently pulling it out of the chassis.  
Figure 36. Removing the front fan assembly  
5. Install the new front fan assembly by aligning the rubber mounts of the front  
fan assembly with the holes on the chassis and push the rubber mounts  
through the holes.  
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6. Pull on the tips of the rubber mounts until the fan assembly is in place.  
Figure 37. Installing the front fan assembly  
7. Connect the front fan assembly cable to the power fan connector on the system  
board.  
Replacing the rear 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  
This section provides instructions on how to replace the rear fan assembly.  
1. Remove the computer cover. See “Removing the cover” on page 12.  
2. Locate the rear fan assembly. See “Locating components” on page 8.  
3. Disconnect the rear fan assembly cable from the system fan connector on the  
Chapter 3. Installing options and replacing hardware 41  
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4. The rear fan assembly is attached to the chassis by four rubber mounts.  
Remove the rear fan assembly by gently pulling it out of the chassis.  
Figure 38. Removing the rear fan assembly  
5. Install the new rear fan assembly by aligning the rubber mounts of the rear fan  
assembly with the holes on the chassis and push the rubber mounts through  
the holes.  
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6. Pull on the tips of the rubber mounts until the fan assembly is in place.  
Figure 39. Replacing the rear fan assembly  
7. Connect the rear fan assembly cable to the system fan connector on the system  
board.  
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  
This section provides instructions on how to replace a keyboard.  
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.  
Chapter 3. Installing options and replacing hardware 43  
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3. Locate the keyboard connector.  
Note: Your keyboard might be connected to a standard keyboard connector ꢀ1ꢁ  
or a USB connector ꢀ2ꢁ. Depending on where your keyboard is connected, see  
Figure 40. Keyboard connectors, standard and USB  
4. Disconnect the failing keyboard cable from the computer.  
5. Connect the new keyboard to the appropriate connector on the computer.  
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  
This section provides instructions on how to replace a mouse.  
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.  
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3. Locate the mouse connector.  
Note: Your mouse might be connected to a standard mouse connector ꢀ1ꢁ or a  
USB connector ꢀ2ꢁ. Depending on where your mouse is connected, see  
Figure 41. Mouse connectors, standard and USB  
4. Disconnect the failing mouse cable from the computer.  
5. Connect the new mouse to the appropriate connector on the computer.  
Chapter 3. Installing options and replacing hardware 45  
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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 programin the User Guide for this  
product.  
This section provides instruction 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. Position the computer cover on the chassis so that the rail guides on the bottom  
of the computer cover engage the rails. Then, push the computer cover closed  
until it snaps into position.  
Figure 42. Replacing the computer cover  
3. If the cover is secured with thumbscrews, install them.  
4. If a cover lock is installed, lock the cover.  
5. Reconnect the external cables and power cords to the computer. See “Locating  
6. To update your configuration, see Using the Setup Utility programin the User  
Guide.  
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47  
 
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  
instructions are provided in README files with the device-driver files.  
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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. See Figure 43. 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  
Figure 43. Integrated cable lock  
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49  
 
Padlock  
Your computer is equipped with a padlock loop such that the cover cannot be  
removed when a padlock is installed.  
Figure 44. Installing a padlock  
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.  
What to do next:  
v To work with another option, go to the appropriate section.  
v To complete the installation, go to Chapter 4, “Completing the parts  
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 12.  
2. Locate the Clear CMOS/Recovery jumper on the system board. See  
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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,  
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 50.  
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,  
Chapter 5. Security features 51  
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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, 2008. Portions © IBM Corp. 2005.  
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53  
 
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  
The Lenovo logo  
ThinkCentre  
ThinkVantage  
IBM is a trademark of the 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.  
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Part Number: 45C6462  
Printed in USA  
(1P) P/N: 45C6462  
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