Your computer model might look slightly different from the illustration.
1 Power button
Used to turn on your computer. You also can use the power button to turn off
your computer when you cannot use the Microsoft
procedure normally to turn off your computer.
2Storage drive status indicator
This indicator is on when the storage drive is in use.
3 USB 3.0 connector
Used to connect a device, such as a keyboard, mouse, scanner, printer, or
PDA, that requires a USB 2.0 or USB 3.0 connection.
4
4
Microphone connector
4
Used to connect a microphone to your computer. You can use the microphone
to record sounds or use speech-recognition software.
5 Headset connector
Used to connect a headset or headphones to your computer.
6
Always On USB 3.0 connector
®
Windows® shutdown
Used to connect a device that requires a USB 2.0 or USB 3.0 connection, such
as a keyboard, a mouse, a scanner, a printer, or a personal digital assistant
(PDA). With the power adapter connected, you can charge the automatically
detected device even when the computer is in hibernation mode or turned off. If
the Always On USB connector function is not enabled, open the Power
Manager program and enable the function. To open the Power Manager
program, see “Accessing a program on the computer” on page 38. To enable
the Always On USB connector, refer to the help system of the Power Manager
program.
Page 4
Overview
4
Rear view
Note
Your computer model might look slightly different from the illustration.
7 Wi-Fi antenna slot
Used to install the rear Wi-Fi antenna cable connector that is optional. The rear
Wi-Fi antenna is installed on the rear Wi-Fi antenna cable connector.
8 Padlock loop
Used to secure a padlock.
9 Ethernet connector
Used to connect an Ethernet cable for a LAN.
10 Optional connector (optional)
Optional connector, depending on your computer model.
11 Security-lock slot
Used to secure a Kensington-style cable lock.
12 Power adapter connector
Used to connect the power adapter to your computer for power supply.
13 DisplayPort® connector
Used to send or receive audio and video signals. An audio or video device,
such as a high-performance monitor, can be attached to this connector.
14 USB 3.0 connector
Used to connect a device, such as a keyboard, mouse, scanner, printer, or
PDA, that requires a USB 2.0 or USB 3.0 connection.
15 DisplayPort® connector
Used to send or receive audio and video signals. An audio or video device,
such as a high-performance monitor, can be attached to this connector.
Used to connect a device, such as a keyboard, mouse, scanner, printer, or PDA,
that requires a USB 2.0 connection. This USB 2.0 connector supports the smart
power on feature that enables you to turn on the computer or wake it up
from S4 hibernation mode by pressing Alt+P on the keyboard. You can enable
or disable the smart power on feature from the Setup Utility program.
17 Headphone connector
Used to connect headphones to your computer.
18 USB 2.0 connector
Used to connect a device, such as a keyboard, mouse, scanner, printer, or
PDA, that requires a USB 2.0 connection.
19 USB 2.0 connector
Used to connect a device, such as a keyboard, mouse, scanner, printer, or
PDA, that requires a USB 2.0 connection.
The machine type and model label identifies the computer. When you
contact Lenovo for help, the machine type and model information helps
support technicians to identify the computer and provide faster service.
The machine type and model label is attached on the side of the
computer as shown.
Page 8
Locking the computer
8
Locking the computer cover
Locking the computer cover helps prevent unauthorized access to the
inside of your computer. Your computer features a padlock loop so that
the computer cover cannot be removed when a padlock is installed.
Attaching a Kensington-style cable lock
You can use a Kensington-style cable lock to secure your computer to
a desk, table, or other nonpermanent fixture. The cable lock connects
to the security-lock slot at the rear of your computer. Depending on the
type selected, the cable lock can be operated with a key or
combination. The cable lock also locks the buttons used to open the
computer cover. This is the same type of lock used with many
notebook computers. You can order such a cable lock directly from
Lenovo by searching for Kensington at:
http://www.lenovo.com/support.
microphone connector)
Display connectors (DisplayPort connectors and VGA connector (optional)
Ethernet connector
Serial connector (optional)
USB connectors
External optical drive box (optional)
Network features
Physical dimensions
Weight (without the
package)
Memory slots
Storage drive bay
Ethernet LAN
Wireless LAN (optional)
Bluetooth (optional)
Width: 35 mm (1.4 inches)
Height: 179 mm (7.0 inches)
Depth: 183 mm (7.2 inches)
Maximum configuration as shipped: 1.3kg (2.9 lb)
Page 10
Replacing hardware
10
Before replacing hardware
Attention
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
Read these notes before replacing hardware:
Some of the hardware components explained in this manual are optional.
Use computer components provided only by Lenovo.
When installing or replacing an option, use the appropriate instructions explained in this manual along
with the instructions that come with the option.
In most areas of the world, Lenovo requires the return of defective CRUs (Customer Replaceable
Units). Information about this will come with the CRU or will come a few days after the CRU arrives.
Do not open the static-protective package containing the new component until the defective
component has been removed and you are ready to install the new component. Static electricity,
although harmless to you, can seriously damage computer components.
When you handle parts and other computer components, take these precautions to avoid static
damage:
Limit your movement. Movement can cause static electricity to build up around you.
Always handle parts and other computer components carefully. Handle PCI/PCI-Express cards,
memory modules, system boards, and microprocessors by the edges. Never touch any exposed
circuitry.
Prevent others from touching the parts and other computer components.
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 from
the package and your body before you install or replace a new part.
When possible, remove the new part from the static-protective package, 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 the package.
Do not place the part on the computer cover or other metal surface.
Page 12
Replacing hardware
12
Understanding replaceable parts
Customer-Replaceable Units (CRUs)
CRUs are computer parts that a user can upgrade or replace. There are two types of CRUs: selfservice and optional-service.
Self-service CRUs
You can install self-service CRUs easily. These CRUs might be standalone,
latched, or secured by up to two screws.
Examples of self-service CRUs include the keyboard, mouse, any USB device,
and the power cord. Other self-service CRUs might include memory modules,
adapter cards, hard disk drives, and optical drives.
Note
Users are responsible for replacing all self-service CRUs.
Optional-service CRUs
Handling optional-service CRUs requires some technical skills and simple tools
(such as a screwdriver).
These CRUs are isolated parts within the computer. They are usually concealed
by an access panel that is secured by more than two screws. You must remove
the screws and panel to access the specific CRU.
Optional-service CRUs can be removed and installed by users or, during the
warranty period, by a Lenovo service technician.
Field-Replaceable Units (FRUs)
FRUs are computer parts that a trained technician can upgrade or replace.
For detailed FRU information, such as the FRU part numbers and supported computer models, go
to:
http:/www.lenovo.com/serviceparts-lookup
CRUs and FRUs locations
Refer to the following illustrations to check the locations of CRUs and FRUs within the computer.
Note
Some of the following parts are optional on some models.
Customer Replaceable Units (CRUs) are computer parts that a user can upgrade or replace. There
are two types of CRUs: self-service and optional-service.
Attention
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
The following is a listing of self-service and optional-service CRU replacement procedures.
Self-service CRU procedures:
Removing the computer cover 17
Replacing the power adapter 18
Replacing the vertical stand 19
Replacing the VESA mount bracket 21
Replacing the external optical drive 22
Replacing the I/O box 24
Replacing the power-adapter bracket 25
Replacing the internal speaker 27
Replacing the mouse 29
Replacing the keyboard 31
Optional-service CRU procedures:
Replacing the system fan 32
Replacing the 2.5-inch storage drive 33
Replacing the M.2 storage drive 35
Replacing a memory module 37
Replacing the coin-cell battery 39
Replacing the Wi-Fi card 41
Note
To replace a component that is not in the list above, contact a Lenovo service technician. The support
phone numbers are available at: http://www.lenovo.com/support/phone
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
If your computer supports one memory module, install the module into the DIMM 1 slot. If your
computer supports two memory modules, install one memory module into the DIMM 1 slot first and
then install the other into the DIMM 2 slot.
Remove any media from the drives and turn off all connected devices and the computer. Then,
1
disconnect all power cords from electrical outlets and disconnect all cables that are connected
to the computer.
2
3
4
Remove the computer cover. For details, see
Remove the storage drive bracket. For details, see
Replace the memory module.
12
Removing the computer cover.
Replacing the 2.5-inch storage drive.
Page 38
5
38
34
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
Your computer has a special type of memory that maintains the date, time, and settings for built-in
features, such as parallel connector assignments (configurations). A coin-cell battery keeps this
information active when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coincell battery lasts forever. If the coin-cell battery fails, the date, time, and configuration information (including
passwords) are lost. An error message is displayed when you turn on the computer.
To replace the coin-cell battery,
Remove any media from the drives and turn off all connected devices and the computer. Then,
1
disconnect all power cords from electrical outlets and disconnect all cables that are connected
to the computer.
Remove the computer cover. For details, see
2
Remove the storage drive bracket. For details, see
3
Replace the coin-cell battery.
4
12
Removing the computer cover.
Replacing the 2.5-inch storage drive.
Page 40
34
40
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
5
To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” topic in the Safety and
Warranty Guide.
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
After completing the installation or replacement for all parts, reinstall the computer cover and reconnect the
cables.
To reinstall the computer cover and reconnect the cables to your computer, do the following:
Ensure that all components have been reassembled correctly and that no tools or loose
1
screws are left inside your computer.
2
3
Ensure that the cables are routed correctly before reinstalling the computer cover. Keep cables
clear of the hinges and sides of the computer chassis to avoid interference when reinstalling
the computer cover.
Install the computer cover.
Page 46
4
46
5
6
Install the screw to secure the computer cover.
If a locking device is available, use it to lock the computer.
Reconnect the external cables and power cords to the corresponding connectors on the
computer.
Before replacing an FRU (Field Replaceable Unit), read the following:
Only certified and trained personnel can service the computer.
Before replacing an FRU, read the entire section on replacing the part.
Be extremely careful during writing operations such as copying, saving, or formatting.
The sequence of the drives in the computer that you are servicing might have been altered. If you
select an incorrect drive, data or programs might be overwritten.
Replace an FRU only with another FRU of the correct model.
When you replace an FRU, ensure that the model of the machine and the FRU part number are
correct by referring to the website: http://www.lenovo.com/serviceparts-lookup
An FRU should not be replaced because of a single, unreproducible failure.
Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such
as cosmic radiation, electrostatic discharge, or software errors. Consider replacing an FRU only when
a problem recurs. If you suspect that an FRU is defective, clear the error log and run the test again. If
the error does not recur, do not replace the FRU.
Only replace a defective FRU.
To identify the FRU type of a computer component, see
FRUs definition.
Attention
Do not open your computer or attempt any repairs before reading the Important Product Information
Guide.
The following is a listing of FRU replacement procedures that are to be performed by certified
and trained personnel.
Internal speaker holder 48
Heat sink 49
Microprocessor 51
Front Wi-Fi antenna 54
Rear Wi-Fi antenna 56
System board 57
Note
To replace a part that is not listed above, see the listing of CRU replacement procedures in Before
replacing CRUs earlier in this document.
Page 48
Replacing FRUs
48
Replacing the internal speaker holder
Attention
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
Remove any media from the drives and turn off all connected devices and the computer. Then,
1
disconnect all power cords from electrical outlets and disconnect all cables that are connected
to the computer.
2
3
4
5
Remove the computer cover. For details, see
Record the routing and connection of the internal speaker cable, and then disconnect the
cable from the system board.
Remove the internal speaker. For details, see
Replace the internal speaker holder.
12
Removing the computer cover.
Replacing the internal speaker.
6
7
Connect the cable of the internal speaker to the internal speaker connector on the system
board.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
Caution
The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.
1
2
3
4
5
6
7
Remove any media from the drives and turn off all connected devices and the computer.
disconnect all power cords from electrical outlets and disconnect all cables that are conn
to the computer.
Remove the computer cover. For details, see
Remove the system fan. For details, see
Remove the internal speaker. For details, see
Remove the internal speaker holder. For details, see
Remove the heat sink. For details, see
Disconnect all cables connected to the system board.
Replacing the heat sink.
Removing the computer cover.
Replacing the system fan.
Replacing the internal speaker.
Replacing the internal speaker holder.
Then,
ected
8
Replace the microprocessor.
Notes
Your microprocessor and socket might look different from the one illustrated.Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom.Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible.
Do not open your computer or attempt any repairs before reading the Important Product InformationGuide.
After completing the installation or replacement for all parts, reinstall the computer cover and reconnect the
cables.
To reinstall the computer cover and reconnect the cables to your computer, do the following:
Ensure that all components have been reassembled correctly and that no tools or loose
1
screws are left inside your computer.
2
3
Ensure that the cables are routed correctly before reinstalling the computer cover. Keep cables
clear of the hinges and sides of the computer chassis to avoid interference when reinstalling
the computer cover.
Install the computer cover.
Page 60
4
60
5
6
Install the screw to secure the computer cover.
If a locking device is available, use it to lock the computer.
Reconnect the external cables and power cords to the corresponding connectors on the
computer.
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 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.
Page 62
Trademarks
62
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo
The Lenovo logo
ThinkCentre
ThinkCentre logo
DisplayPort and VESA are trademarks of the Video Electronics Standards Association.
Other company, product, or service names may be trademarks or service marks of others.