Lenovo ThinkCentre M725s Manual del propietario

M725s User Guide and Hardware

Maintenance Manual

Energy Star Machine Types: 10VT, 10VU, 10VV, and 10VX

Note: Before using this infor ation and the product it supports, be sure to read and understand the

Important Product Information Guide and Appendix A “Notices” on page 63.

First Edition (July 2018)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services

Ad inistration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-

35F-05925.

Contents

Chapter 1. Overview . . . . . . . . . . . 1

Front view . . . . . . . . . . . . . . . . . . 1

Rear view . . . . . . . . . . . . . . . . . . 3

Syste board . . . . . . . . . . . . . . . . 5

Machine type and odel label . . . . . . . . . . 6

Chapter 2. Specifications . . . . . . . . 7

Chapter 3. Computer locks . . . . . . . 9

Chapter 4. Replacing hardware . . . . 11

Before replacing hardware . . . . . . . . . . 11

Knowing FRUs (including CRUs) . . . . . . . . 11

Locating FRUs (including CRUs) . . . . . . . . 12

Replacing external options . . . . . . . . . . 14

Re oving the co puter cover . . . . . . . . . 16

Replacing the front bezel . . . . . . . . . . . 17

Replacing the optical drive . . . . . . . . . . 18

Pivoting the drive bay asse bly upward and

downward . . . . . . . . . . . . . . . . . 20

Replacing the storage drive . . . . . . . . . . 22

Replacing the power button board and the card

reader . . . . . . . . . . . . . . . . . . 27

Replacing the illu inated red dot . . . . . . . . 31

Replacing the internal speaker . . . . . . . . . 33

Replacing the ther al sensor . . . . . . . . . 35

Replacing the Wi-Fi card . . . . . . . . . . . 38

Replacing the Wi-Fi antennas . . . . . . . . . 40

Replacing the M.2 solid-state drive . . . . . . . 42

Replacing the M.2 solid-state drive bracket . . . . 45

Replacing the coin-cell battery . . . . . . . . . 46

Replacing a e ory odule. . . . . . . . . . 48

Replacing the heat sink and fan asse bly . . . . 50

Replacing the icroprocessor . . . . . . . . . 52

Replacing a PCI Express card . . . . . . . . . 54

Replacing the cover presence switch . . . . . . 56

Replacing the power supply asse bly . . . . . . 57

Replacing the syste board . . . . . . . . . . 59

Co pleting the parts replace ent . . . . . . . 60

Appendix A. Notices . . . . . . . . . . 63

Appendix B. Trademarks . . . . . . . 65

ii M725s User Guide and Hardware Maintenance Manual

Chapter 1. Overview

This chapter provides basic infor ation to help you get fa iliar with your co puter.

Front view

Note: Your co puter odel ight look slightly different fro the illustration.

Figure 1. Front view

1 Optical drive eject button 2 Optical drive activity indicator

3 Storage drive activity indicator 4 Card reader slot (optional)

5 Power button 6 Power indicator

7 Microphone connector 8 Headphone connector

9 USB 3.1 Gen 2 connectors (2) 10 USB 3.1 Gen 1 connectors (2)

11 Illu inated red dot 12 Internal speaker (optional)

1 Optical drive eject button

Used to eject the tray of the optical drive.

2 Optical drive activity indicator

This indicator is on when the optical drive is in use.

3 Storage drive activity indicator

This indicator is on when the storage drive is in use.

4 Card reader slot

Used to read data fro a supported e ory card.

5 Power button

Used to turn on your co puter. When you cannot shut down the co puter fro the operating syste , press

and hold the power button for four or ore seconds to turn off the co puter.

6 Power indicator

This indicator is on when the co puter is on.

7 Microphone connector

Used to connect a icrophone to your co puter when you want to record sound or interact with the

co puter using speech recognition software.

8 Headphone connector

Used to connect headphones to your co puter.

9 USB 3.1 Gen 2 connector

Used to connect a USB-co patible device. For opti al data transfer, connect a USB 3.1 Gen 2 device to a

USB 3.1 Gen 2 connector instead of a USB 3.1 Gen 1 or USB 2.0 connector.

10 USB 3.1 Gen 1 connector

Used to connect a USB-co patible device. For opti al data transfer, connect a USB 3.1 Gen 1 device to a

USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.

11 Illuminated red dot

This indicator is on when the co puter is on.

12 Internal speaker

Used to listen to the sounds fro your co puter without using a headset or headphones.

2M725s User Guide and Hardware Maintenance Manual

Rear view

Note: Your co puter odel ight look slightly different fro the illustration.

Figure 2. Rear view

1 Microphone connector 2 VGA-out connector

3 DisplayPort® 1.2 out connectors (2) 4 USB 3.1 Gen 1 connectors (2)

5 USB 2.0 connectors (2) 6 PS/2 keyboard connector

7 Audio line-out connector 8 Audio line-in connector

9 Serial connector 10 Ethernet connector

11 PS/2 ouse connector 12 Security-lock slot

13 Padlock loop 14 PCI-Express card area

15 S art cable clip slots (2) (optional) 16 Power cord connector

1 Microphone connector

Used to connect a icrophone to your co puter when you want to record sound or interact with the

co puter using speech recognition software.

2 VGA-out connector

Chapter 1.Overview 3

Used to send video signals fro the co puter to another video device, such as a onitor.

3 DisplayPort 1.2 out connector

Used to send audio and video signals fro the co puter to another audio or video device, such as a high-

perfor ance onitor.

4 USB 3.1 Gen 1 connector

Used to connect a USB-co patible device. For opti al data transfer, connect a USB 3.1 Gen 1 device to a

USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.

5 USB 2.0 connector

Used to connect a device that requires a USB 2.0 connection.

6 PS/2 keyboard connector

Used to connect a keyboard that uses a Personal Syste /2 (PS/2) keyboard connector.

7 Audio line-out connector

Used to send audio signals fro the co puter to external devices, such as powered stereo speakers,

headphones, or ulti edia keyboards. To connect a stereo syste or other external recording device,

connect a cable between the audio line-in connector of the device and the audio line-out connector of the

co puter.

Note: If your co puter has both an audio line-out connector and a headset or headphone connector, always

use the headset or headphone connector for earphones, headphones, or a headset. The headphone

connector does not support headset icrophones.

8 Audio line-in connector

Used to receive audio signals fro an external audio device, such as a stereo syste . To connect an external

audio device, connect a cable between the audio line-out connector of the device and the audio line-in

connector of the co puter.

9 Serial connector

Used to connect an external ode , a serial printer, or other devices that use a serial connector.

10 Ethernet connector

Used to connect an Ethernet cable for network access.

11 PS/2 mouse connector

Used to connect a ouse, a trackball, or other pointing devices that use a PS/2 ouse connector.

12 Security-lock slot

Used to secure a Kensington-style cable lock.

13 Padlock loop

Used to secure a padlock.

4M725s User Guide and Hardware Maintenance Manual

14 PCI-Express card area

To i prove the operating perfor ance of the co puter, you can connect PCI-Express cards into this area.

Depending on the co puter odel, the connectors in this area vary.

15 Smart cable clip slots

Used to secure a s art cable clip.

16 Power cord connector

Used to connect the power cord to your co puter for power supply.

System board

Note: See “Front view” and “Rear view” for additional co ponent descriptions.

Figure 3. System board

1 4-pin power connector 2 Microprocessor fan connector

3 Internal speaker connector 4 Storage drive activity indicator

5 Power button board connector 6 SATA power connectors (2)

7 10-pin power connector 8 Clear CMOS /Recovery ju per

9 SATA 3.0 connectors (3) 10 Auxiliary fan connector 1

11 Illu inated red dot connector 12 Ther al sensor connector

13 M.2 solid-state drive slot 14 Front USB 2.0 connector (card reader connector)

15 Front USB 2.0 connector 16 Parallel connector

Chapter 1.Overview 5

17 Serial (COM2) connector 18 Buzzer

19 PCI Express x1 card slots (2) 20 PCI Express x16 graphics card slot

21 Syste fan connector 22 Microprocessor socket

23 Me ory slot (DIMM1) 24 Me ory slot (DIMM2)

25 Me ory slot (DIMM3) 26 Me ory slot (DIMM4)

27 Coin-cell battery 28 PCH

29 M.2 Wi-Fi card slot 30 Cover presence switch connector (intrusion switch

connector)

Machine type and model label

The achine type and odel label identifies the co puter. When you contact Lenovo for help, the achine

type and odel infor ation helps support technicians to identify the co puter and provide faster service.

The achine type and odel label is attached to the co puter as shown.

Figure 4. achine type and model label

6M725s User Guide and Hardware Maintenance Manual

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