ThinkCentre
Hardware Installation and Replacement Guide
Machine Types 6137, 6234, 6258, 6303, 7174, 7220, 7346, 7354, 7357,
7360, 7483, 7627, 7630, 7638, 8910, 9964
ThinkCentre
Hardware Installation and Replacement
Guide
Note
Before using this information and the product it supports, be sure to read and understand the ThinkCentre Safety and
First Edition (November 2008)
© Copyright Lenovo 2008. 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
© Copyright Lenovo 2008
iii
iv ThinkCentre Hardware Installation and Replacement Guide
vi ThinkCentre 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 ThinkCentre Safety and
Warranty Guide that you received with this product for the latest safety
information. Reading and understanding the safety information reduces the risk
of personal injury and or damage to your product.
If you no longer have a copy of the ThinkCentre Safety and Warranty Guide, you can
obtain one online from the Lenovo® Support Web site at:
© Copyright Lenovo 2008
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ThinkCentre Hardware Installation and Replacement Guide
Chapter 2. Overview
This guide provides information about installing and or replacing Customer
Replaceable Units (CRUs). However, 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 and or replacing the following parts:
v Battery
v Power supply
v Heat sink and fan assembly
v Hard disk drive
v Optical drive
v Memory module
v Adapter card
v Card reader
v Keyboard
v Mouse
Additional information resources
If you have Internet access, the most up-to-date information for your computer is
available at:
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
© Copyright Lenovo 2008
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 adapter
cards, 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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ThinkCentre Hardware Installation and Replacement Guide
Locations
This section 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 have the following controls and connectors.
Figure 1. Controls and connectors
ꢀ1ꢁ
ꢀ2ꢁ
USB connector
Microphone connector
ꢀ3ꢁ
ꢀ4ꢁ
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 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. Connector locations
ꢀ1ꢁ
Serial port (some models)
ꢀ9ꢁ
Standard mouse connector (some
models)
ꢀ2ꢁ
ꢀ3ꢁ
ꢀ4ꢁ
ꢀ5ꢁ
ꢀ6ꢁ
ꢀ7ꢁ
Power cord connector
Audio line-in connector
Audio line-out connector
Microphone connector
Serial port
ꢀ10ꢁ
ꢀ11ꢁ
ꢀ12ꢁ
ꢀ13ꢁ
ꢀ14ꢁ
ꢀ15ꢁ
DisplayPort connector
USB connectors (2)
eSATA connector
USB connectors (4)
Ethernet connector
PCI Express x16 graphics adapter card
slot
VGA monitor connector
ꢀ8ꢁ
Standard keyboard connector
(some models)
ꢀ16ꢁ
Adapter card slot
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ThinkCentre Hardware Installation and Replacement Guide
Connector
Description
USB connector
Used to attach a device that requires a Universal Serial Bus
(USB) connector, such as a USB keyboard, a USB mouse, a USB
scanner, or a USB printer. If you have more than eight 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.
Serial port
Used to attach an external modem, a serial printer, or other
devices that use a 9-pin serial port.
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
devices.
eSATA connector
Use this external Serial Advanced Technology Attachment
(eSATA) connector to attach an external hard disk drive.
DisplayPort connector
Used to attach a high-performance monitor, a direct-drive
monitor, or other devices that use a DisplayPort connector.
Standard mouse connector Used to attach a mouse, a trackball, or other pointing devices
that use a standard mouse connector.
Standard keyboard
connector
Used to attach a keyboard that uses a standard keyboard
connector.
Chapter 2. Overview
7
Locating components
Figure 3 shows the location of the various components in your computer.
Figure 3. Component locations
ꢀ1ꢁ
ꢀ2ꢁ
Hard disk drive
Microprocessor, heat sink and fan
assembly
ꢀ4ꢁ
ꢀ5ꢁ
Internal speaker
Memory slots (4)
ꢀ3ꢁ
Optical drive
ꢀ6ꢁ
Power supply
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ThinkCentre Hardware Installation and Replacement Guide
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
PCI adapter card slot
PCI Express x16 adapter card slot ꢀ12ꢁ
Battery
Internal speaker connector
ꢀ11ꢁ
Memory slots (4)
24-pin power connector
Serial (COM 2) connector
Front audio connector
SATA connectors (2)
ꢀ13ꢁ
ꢀ14ꢁ
Cover presence (Intrusion) switch ꢀ15ꢁ
connector
ꢀ6ꢁ
ꢀ7ꢁ
ꢀ8ꢁ
ꢀ9ꢁ
Microprocessor fan connector
Thermal sensor connector
Microprocessor
ꢀ16ꢁ
ꢀ17ꢁ
ꢀ18ꢁ
ꢀ19ꢁ
ꢀ20ꢁ
System fan connector
Front USB connector 1
Front USB connector 2
Clear CMOS/Recovery jumper
Power fan connector
4-pin power connector
ꢀ10ꢁ Front panel connector
Chapter 2. Overview
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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 modules, adapter cards, 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 ThinkCentre Safety and Warranty Guide that came with your computer.
To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
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.
© Copyright Lenovo 2008
11
Installing internal options
Important
computer cover.
Opening the cover
Important
Turn off the computer and wait three to five minutes to let the computer
cool before opening the computer cover.
To open the computer cover:
1. Remove any media 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
4. Remove any locking devices, such as a cable lock that secures the computer
cover.
5. Press the buttons on the sides of the computer and pivot the cover upward to
open the computer.
Figure 5. Opening the cover
12 ThinkCentre Hardware Installation and Replacement Guide
Accessing system board components and drives
To access system board components and the drives:
2. On some models, you might need to pivot the drive bay assembly upward and
remove the hard disk drive to access the internal components. See “Replacing a
Note: Make sure you note the location of any cables that you disconnect from
the drives or the system board.
Attention: You must return the hard disk drive assembly to the latched
position before you close the cover to prevent damage to the hard disk drive
assembly.
Figure 6. Pivoting the drive bay
Installing a memory module
Your computer has four slots for installing DDR3 DIMMs (double data rate 3 dual
inline memory modules) that provide up to a maximum of 8 GB of system
memory.
When installing memory modules, use the following guidelines:
v Use 1.8 V, 240-pin DDR3 SDRAM (double data rate 3 synchronous dynamic
random access memory).
v Use 1 GB or 2 GB memory modules in any combination up to a maximum of 8
GB.
To install a memory module:
2. You might have to pivot the drive bay assembly upward to access the memory
3. Remove any parts that might prevent access to the memory slots.
4. Locate the memory slots.
Chapter 3. Installing options and replacing hardware 13
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