Lenovo 10SQ006BUK User Manual

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Energy Star Machine Types: 10SQ, 10SR, 10SS, 10TQ, 10U4, and

10U5

Note: Before using this information and the product it supports, be sure to read and understand the Important Product Information Guide and Appendix A “Notices” on page 77.

First Edition (June 2018)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.

Contents

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

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

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

System board . . . . . . . . . . . . . . . . 5

Machine type and model label . . . . . . . . . . 6

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

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

Locking the computer cover . . . . . . . . . . . 9

Enabling or disabling the E-lock . . . . . . . . . 9

Attaching a Kensington-style cable lock . . . . . 10

Attaching a smart cable clip . . . . . . . . . . 10

Chapter 4. Replacing hardware . . . . 13

Before replacing hardware . . . . . . . . . . 13

Knowing FRUs (including CRUs) . . . . . . . . 13

Locating FRUs (including CRUs) . . . . . . . . 14

Replacing the keyboard or wireless keyboard . . . 16

Replacing the mouse or wireless mouse . . . . . 17

Replacing the power cord . . . . . . . . . . . 21

Replacing the dust shield . . . . . . . . . . . 22

Removing the computer cover . . . . . . . . . 23

Replacing the front bezel . . . . . . . . . . . 23

Replacing the optical drive . . . . . . . . . . 24

Replacing the optical drive bracket . . . . . . . 25

Replacing the storage drive . . . . . . . . . . 26

Replacing a memory module. . . . . . . . . . 31

Replacing a PCI Express card . . . . . . . . . 34

Replacing the Wi-Fi card . . . . . . . . . . . 36

Replacing the M.2 solid-state drive . . . . . . . 38

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

Replacing the power supply assembly . . . . . . 46

Replacing the Wi-Fi antennas . . . . . . . . . 48

Replacing the internal speaker . . . . . . . . . 51

Replacing the front fan . . . . . . . . . . . . 53

Replacing the illuminated red dot cable . . . . . 55

Replacing the thermal sensor . . . . . . . . . 57

Replacing the front I/O bracket . . . . . . . . . 58

Replacing the power button . . . . . . . . . . 60

Replacing the card reader board . . . . . . . . 61

Replacing the heat sink and fan assembly . . . . 62

Replacing the microprocessor . . . . . . . . . 64

Replacing the coin-cell battery . . . . . . . . . 67

Replacing the E-lock . . . . . . . . . . . . . 69

Replacing the cover presence switch . . . . . . 70

Replacing the rear fan . . . . . . . . . . . . 72

Replacing the system board . . . . . . . . . . 73

Completing the parts replacement . . . . . . . 74

Appendix A. Notices. . . . . . . . . . 77

Appendix B. Trademarks . . . . . . . 79

ii ThinkCentre M720t User Guide and Hardware Maintenance Manual

Chapter 1. Overview

This chapter provides basic information to help you get familiar with your computer.

Front view

Note: Your computer model might look slightly different from the illustration.

Figure 1. Front view

1 Optical drive eject/close button (optional) 2 Optical drive activity indicator (optional)

3 Internal speaker

5 Card reader slot (optional)

7 Power indicator 8 Microphone connector

9 Headset connector

11 USB 3.1 Gen 1 connectors (2) 12 USB 3.1 Gen 2 connectors (2)

13 Illuminated red dot

1 Optical drive eject/close button (optional)

4 Storage drive status indicator

6 Power button

10 Type-C USB 3.1 Gen 1 connector

Used to eject the tray of the optical drive. After you insert a disc into the tray, press the eject/close button to close the tray.

2 Optical drive activity indicator (optional)

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

3 Internal speaker

Used to listen to the sounds from your computer without using a headset or headphones.

4 Storage drive activity indicator

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

5 Card reader slot (optional)

Used to read data from a supported memory card.

6 Power button

Used to turn on your computer. When you cannot shut down the computer from the operating system, press and hold the power button for four or more seconds to turn off the computer.

7 Power indicator

This indicator is on when the computer is on.

8 Microphone connector

Used to connect a microphone to your computer. You can use the microphone to record sounds or interact with the computer using speech-recognition software.

9 Headset connector

Used to connect a headset or headphones to your computer.

10 Type-C USB 3.1 Gen 1 connector

Used to connect a Type-C USB 3.1 compatible device.

11 USB 3.1 Gen 1 connectors

Used to connect a USB-compatible device. For optimal 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.

12 USB 3.1 Gen 2 connectors

Used to connect a USB-compatible device. For optimal 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.

13 Illuminated red dot

This indicator is on when the computer is on.

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Rear view

Note: Your computer model might look slightly different from the illustration.

Figure 2. Rear view

1 Audio line-out connector

3 DisplayPort

5 USB 2.0 connectors (3) 6 Serial connector

7 PS/2 keyboard and mouse connectors (optional)

9 Smart cable clip slots (2) (optional) 10 Serial connector (optional)

11 PCI Express card area

13 Security-lock slot

1 Audio line-out connector

1.2 out connectors (2) 4 USB 2.0 connector

2 VGA-out connector

8 Ethernet connector

12 Padlock loop

14 Power cord connector

Used to send audio signals from the computer to external devices, such as powered stereo speakers, headphones, or multimedia keyboards. To connect a stereo system 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 computer.

Chapter 1. Overview 3

Note: If your computer 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 microphones.

2 VGA-out connector

Used to send video signals from the computer to another video device, such as a monitor.

3 DisplayPort 1.2 out connectors

Used to send audio and video signals from the computer to another audio or video device, such as a highperformance monitor.

4 USB 2.0 connector

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

Note: The USB 2.0 connector supports the smart power on feature. If you connect a Lenovo-recommended USB 1.1 keyboard to this connector, you can power on the computer or wake it up from S4 hibernation mode by pressing Alt+P on the keyboard. Ensure that you use a Lenovo-recommended keyboard that supports the smart power on feature.

5 USB 2.0 connectors

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

6 Serial connector

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

7 PS/2 keyboard and mouse connectors (optional)

Used to connect a keyboard, a mouse, or trackball, or other pointing devices that uses a Personal System/2 (PS/2) connector.

8 Ethernet connector

Used to connect an Ethernet cable for network access.

9 Smart cable clip slots (optional)

Used to secure a smart cable clip.

10 Serial connector (optional)

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

11 PCI Express card area

To improve the operating performance of the computer, you can connect PCI Express cards into this area. Depending on the computer model, the connectors in this area vary.

12 Padlock loop

Used to secure a padlock.

13 Security-lock slot

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Used to secure a Kensington-style cable lock.

14 Power cord connector

Used to connect the power cord to your computer for power supply.

System board

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

Figure 3. System board

1 4-pin power connector

3 Power button connector 4 Internal speaker connector

5 Auxiliary fan connector 2

7 Auxiliary fan connector 1

9 Clear CMOS (Complementary Metal Oxide

2 Microprocessor fan connector

6 10-pin power connector

8 SATA power connectors (2)

10 SATA 3.0 connectors (3)

Semiconductor) / Recovery jumper

11 M.2 solid-state drive slot 12 M.2 Wi-Fi card slot

13 Thermal sensor connector 14 Illuminated red dot connector

Chapter 1. Overview 5

15 Front USB 2.0 connector

17 Serial (COM2) connector 18 PCI Express x1 card slots (2)

19 PCI Express x16 graphics card slot 20 System fan connector

21 E-lock connector 22 Microprocessor socket

16 Parallel connector

23 Cover presence switch connector (Intrusion switch

24 Coin-cell battery

connector)

25 Memory slot (DIMM1) 26 Memory slot (DIMM2)

27 Memory slot (DIMM3) 28 Memory slot (DIMM4)

29 Keyboard and mouse connector

Machine type and model label

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 computer as shown.

Figure 4. Machine type and model label

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Chapter 2. Specifications

Power supply

• 180-watt automatic voltage-sensing power supply

• 210-watt automatic voltage-sensing power supply

• 260-watt automatic voltage-sensing power supply

Storage drives

• 3.5–inch storage drive (optional)

• 2.5–inch storage drive (optional)

• M.2 solid-state drive (optional)

Video features

The integrated graphics card supports the following:

• DisplayPort 1.2 out connector

• VGA-out connector

Audio features

• The integrated audio card supports the following:

– Audio line-out connector

– Headset connector

– Internal speaker

– Microphone connector (optional)

• The optional discrete audio card provides an enhanced audio experience and extended capabilities.

Input/Output (I/O) features

• Audio connectors (audio line-out, headset, and microphone)

• Card reader slot (optional)

• DisplayPort 1.2 out connector

• Ethernet connector

• PS/2 keyboard connector (optional)

• PS/2 mouse connector (optional)

• Serial connectors

• USB connectors (USB 2.0, USB 3.1, and Type-C USB 3.1)

• VGA-out connector

Expansion

• Card reader (optional)

• Memory slots

• M.2 solid-state drive slot

• Optical drive (optional)

• PCI Express x1 card slots

• PCI Express x16 graphics card slot

• Storage drive bay

Network features

• Ethernet LAN

• Wireless LAN (optional)

• Bluetooth (optional)

Physical dimensions

• Width: 150 mm (5.9 inches)

• Height: 360 mm (14.2 inches)

• Depth: 270.5 mm (10.6 inches)

Weight (without the package)

Maximum configuration as shipped: 6.9 kg (15.2 lb)

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Chapter 3. Computer locks

This chapter provides instructions on how to lock your computer with the locking devices to keep your computer safe.

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.

Figure 5. Locking the computer cover

Enabling or disabling the E-lock

Your computer may have a security lock solution installed to protect the computer from unauthorized tampering of the internal components. Using the E-Lock, you can mechanically lock or unlock the computer cover.

To enable or disable the E-Lock, do the following:

1. Turn on or restart the computer.

2. Before Windows starts up, repeatedly press and release the F1 or Fn+F1 key until the Setup Utility program opens.

3. Click Security ➙ Electronic Lock to enable or disable the E-lock.

4. Press F10 or Fn+F10 to save the changes and reboot the computer.

Note: Changes do not take effect until the setting is saved and the system is rebooted.

Figure 6. Enabling or disabling the E-lock

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

Figure 7. Attaching a Kensington-style cable lock

Attaching a smart cable clip

A smart cable clip can be used to secure devices, such as the keyboard and the mouse, by locking the device cables to the computer. The smart cable clip connects to the cable-lock slots on the rear of the computer. To install a smart cable clip, do the following:

1. Insert the clip

2. Pull the cables you want to lock through the dents in the smart cable clip.

3. Press the clip

ThinkCentre M720t User Guide and Hardware Maintenance Manual

1 into the cable-lock slot 4 .

2 into the cable-lock slot 3 until it snaps into position.

Figure 8. Attaching a smart cable clip

Chapter 3. Computer locks 11

12 ThinkCentre M720t User Guide and Hardware Maintenance Manual

Chapter 4. Replacing hardware

This chapter provides instructions on how to replace hardware for your computer.

Before replacing hardware

Attention: Do not open your computer or attempt any repairs before reading this section and the Important

Product Information Guide.

Notes before replacing hardware

• 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. Information about this will come with the CRU or will come a few days after the CRU arrives.

Handling static-sensitive devices

Do not open the static-protective package containing the new part until the defective part has been removed and you are ready to install the new part. Static electricity, although harmless to you, can seriously damage computer components and options.

When you handle options and other computer components, take these precautions to avoid static-electricity damage:

• Limit your movement. Movement can cause static electricity to build up around you.

• Always handle options and other computer components carefully. Handle PCI/PCIe cards, memory modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.

• Prevent others from touching the options 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 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.

Knowing FRUs (including CRUs)

• Field Replaceable Units (FRUs) are computer parts that a trained technician can upgrade or replace. FRUs include all CRUs. For detailed FRU information, such as the FRU part numbers and supported computer models, go to:

http://www.lenovo.com/serviceparts-lookup

• Customer Replaceable Units (CRUs) are computer parts that a user can upgrade or replace.

– Self-service CRUs: You can install self-service CRUs easily. These CRUs might be stand-alone,

latched, or secured by up to two screws. Examples of self-service CRUs include the keyboard, mouse, and any USB device. You 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.

Before replacing FRUs

Before replacing any FRU, read the following:

• Only certified and trained personnel can service the computer.

• Before replacing an FRU, read the entire section about 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.

• 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.

Locating FRUs (including CRUs)

Notes:

• Some of the components are optional.

• To replace a component that is not in the list below, contact a Lenovo service technician. For a list of Lenovo Support phone numbers, go to:

http://www.lenovo.com/support/phone

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Figure 9. Locating FRUs

Self-service CRUs Optional-service CRUs Non-CRUs

1 Computer cover

6 Coin-cell battery

8 Memory module 32 Power supply assembly 7 Microprocessor

10 M.2 solid-state drive heat sink 36 E-lock

11 M.2 solid-state drive 13 Power button

12 M.2 solid-state drive bracket

16 Optical drive bracket 15 Card reader

22 Optical drive 17 Front I/O bracket

4 Wi-Fi card

5 Wi-Fi card shield

2 Heat sink and fan assembly

3 Rear fan

9 System board

14 Optical drive cable

Chapter 4. Replacing hardware 15

Self-service CRUs Optional-service CRUs Non-CRUs

23 Front bezel 18 Internal speaker

24 Dust shield 19 Wi-Fi antennas

25 Keyboard 20 Illuminated red dot cable

26 Mouse 21 Thermal sensor

27 Power cord

28 Storage converter

29 Primary or secondary storage

drive (a 2.5-inch or 3.5-inch storage drive)

34 PCI Express card 35 Cover presence switch (Intrusion

30 Storage drive cable

31 Front fan

33 Chassis

switch)

37 Wi-Fi antenna cover

Replacing the keyboard or wireless keyboard

Note: The wireless keyboard is available only on some models.

Replacing the keyboard

1. Turn off the computer and disconnect all power cords from electrical outlets.

2. Disconnect the old keyboard cable from the computer.

3. Connect a new keyboard to the appropriate connector on the computer.

Figure 10. Replacing the keyboard

Replacing the wireless keyboard

1. Remove your old wireless keyboard.

2. Take out the new wireless keyboard from the package.

3. Open the battery compartment cover, and install two AAA batteries according to the polarity indicators.

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Figure 11. Replacing the wireless keyboard

4. Remove the USB dongle from the keyboard compartment or from the wireless mouse compartment and connect it to an available USB connector on the computer.

5. Close the compartment cover. The keyboard is ready for use.

Replacing the mouse or wireless mouse

Note: The wireless mouse is available only on some models.

Replacing the mouse

1. Turn off the computer and disconnect all power cords from electrical outlets.

2. Disconnect the old mouse cable from the computer.

3. Connect a new mouse to the appropriate connector on the computer.

Figure 12. Replacing the mouse

Replacing the wireless mouse

1. Disconnect the USB dongle from your computer. Then, remove your old wireless mouse.

2. Remove the new wireless mouse from the package.

3. Open the battery compartment cover, and install two AAA batteries according to the polarity indicators.

Chapter 4. Replacing hardware 17

Figure 13. Opening the battery compartment

Figure 14. Taking out the USB dongle

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Figure 15. Connecting the USB dongle to a USB connector

Figure 16. Installing the mouse batteries

Chapter 4. Replacing hardware 19

Figure 17. Closing the battery compartment cover

Figure 18. Pushing the power switch to the on position

Notes:

• The green LED indicates that the mouse is ready for use.

• The flashing amber LED indicates a low battery level.

• Push the power switch to the off position when you are not using the mouse to extend the battery life.

• After disconnecting the USB dongle from your computer, store it in the wireless mouse compartment or in the wireless keyboard compartment.

ThinkCentre M720t User Guide and Hardware Maintenance Manual

Replacing the power cord

Attention: Do not open your computer or attempt any repairs before reading the Important Product

Information Guide.

1. Remove any media from the drives and turn off all connected devices and the computer.

2. Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

3. Replace the power cord.

Note: Your power cord might look different from the one illustrated.

Figure 19. Removing the power cord

Figure 20. Installing the power cord

Chapter 4. Replacing hardware 21

Replacing the dust shield

Note: The dust shield is optional.

Attention: Do not open your computer or attempt any repairs before reading the Important Product

Information Guide.

1. Remove any media from the drives and turn off all connected devices and the computer.

2. Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

3. Replace the dust shield.

Figure 21. Removing the dust shield

Figure 22. Installing the dust shield

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