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Lenovo ThinkCentre M720s 10ST User Manual And Hardware Maintenance Manual

Thinkcentre m720s series
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ThinkCentre M720s User Guide and Hardware
Maintenance Manual
Energy Star Machine Types: 10ST, 10SU, 10SV, 10TR, 10U6, and
10U7

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  Summary of Contents for Lenovo ThinkCentre M720s 10ST

  • Page 1 ThinkCentre M720s User Guide and Hardware Maintenance Manual Energy Star Machine Types: 10ST, 10SU, 10SV, 10TR, 10U6, and 10U7...
  • Page 2 Important Product Information Guide and Appendix A “Notices” on page 71. First Edition (June 2018) © Copyright Lenovo 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. GS-...
  • Page 3: Table Of Contents

    Replacing the front bezel ... Appendix B. Trademarks ..73 Replacing the optical drive ..© Copyright Lenovo 2018...
  • Page 4 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 5: Chapter 1. Overview

    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 © Copyright Lenovo 2018...
  • Page 6 Optical drive eject/close button (optional) Optical drive activity indicator (optional) Storage drive activity indicator Card reader slot (optional) Power button Power indicator Microphone connector (optional) Headset connector Type-C USB 3.1 Gen 1 connector USB 3.1 Gen 1 connectors (2) USB 3.1 Gen 2 connectors (2) Illuminated red dot Internal speaker Optical drive eject/close button (optional)
  • Page 7: Rear View

    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. Illuminated red dot This indicator is on when the computer is on. Internal speaker Used to listen to the sounds from your computer without using a headset or headphones.
  • Page 8 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.
  • Page 9: System Board

    Security-lock slot Used to secure a Kensington-style cable lock. Padlock loop Used to secure a padlock. 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. Smart cable clip slots (optional) Used to secure a smart cable clip.
  • Page 10 Figure 3. System board 4-pin power connector Microprocessor fan connector Power button connector Internal speaker connector Auxiliary fan connector 2 10-pin power connector Auxiliary fan connector 1 SATA power connectors (2) Clear CMOS (Complementary Metal Oxide SATA 3.0 connectors (3) Semiconductor) / Recovery jumper M.2 solid-state drive slot M.2 Wi-Fi card slot...
  • Page 11: Machine Type And Model Label

    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.
  • Page 12 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 13: Chapter 2. Specifications

    • 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 © Copyright Lenovo 2018...
  • Page 14 • PCI Express x16 graphics card slot • Storage drive bay Network features • Ethernet LAN • Wireless LAN (optional) • Bluetooth (optional) Physical dimensions • Width: 92.5 mm (3.6 inches) • Height: 343.5 mm (13.5 inches) • Depth: 290.5 mm (11.4 inches) Weight (without the package) Maximum configuration as shipped: 6 kg (13.2 lb) ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 15: Chapter 3. Computer Locks

    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. © Copyright Lenovo 2018...
  • Page 16: Attaching A Kensington-Style Cable Lock

    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.
  • Page 17 Figure 8. Attaching a smart cable clip Chapter 3 Computer locks...
  • Page 18 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 19: Chapter 4. Replacing Hardware

    • 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.
  • Page 20: Locating Frus (Including Crus)

    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...
  • Page 21 Figure 9. Locating FRUs Self-service CRUs Optional-service CRUs Non-CRUs Computer cover Wi-Fi card Heat sink and fan assembly PCI Express card Wi-Fi card shield Microprocessor Memory module Power supply assembly System board M.2 solid-state drive heat sink E-lock Coin-cell battery M.2 solid-state drive Power button Chapter 4...
  • Page 22: Replacing The Keyboard Or Wireless Keyboard

    Self-service CRUs Optional-service CRUs Non-CRUs M.2 solid-state drive bracket Front I/O bracket Optical drive bracket Storage drive cable Optical drive Card reader Front bezel Optical drive cable Dust shield Internal speaker Keyboard Thermal sensor Mouse Illuminated red dot cable Vertical stand Chassis Power cord Cover presence switch (intrusion...
  • Page 23: Replacing The Mouse Or Wireless Mouse

    Figure 11. Replacing the wireless keyboard 4. Take out 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.
  • Page 24 Figure 13. Opening the battery compartment Figure 14. Taking out the USB dongle Figure 15. Connecting the USB dongle to a USB connector Figure 16. Installing the mouse batteries ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 25: Replacing The Power Cord

    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. •...
  • Page 26: Replacing The Dust Shield

    Figure 19. Removing the power cord Figure 20. Installing the power cord 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.
  • Page 27: Replacing The Vertical Stand

    Figure 22. Installing the dust shield Replacing the vertical stand Note: The vertical stand is available only on some models. 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.
  • Page 28: Removing The Computer Cover

    Figure 24. Installing the vertical stand Removing the computer cover Note: Before you open the computer cover, ensure that the E-lock has been unlocked in the Setup Utility program. See “Computer locks”. Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 29: Replacing The Front Bezel

    6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the front bezel Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide. 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2.
  • Page 30 3. Disconnect the signal and power connector from the optical drive. 4. Replace the optical drive. Figure 28. Removing the optical drive assembly Figure 29. Removing the optical drive bracket Figure 30. Installing the optical drive bracket ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 31: Replacing The Storage Drive

    Figure 31. Installing the optical drive assembly 5. Connect the signal and power connector to the new optical drive. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the storage drive Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 32 Figure 33. Removing the 3.5–inch primary storage drive Figure 34. Removing the 3.5–inch primary storage drive bracket Figure 35. Installing the 3.5–inch primary storage drive bracket ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 33 Figure 36. Installing the 3.5–inch primary storage drive Figure 37. Closing the drive bay 5. Connect the storage drive cables to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the 2.5–inch primary storage drive 1.
  • Page 34 Figure 38. Removing the 2.5–inch primary storage drive from the storage converter Figure 39. Installing the new 2.5–inch primary storage drive to the storage converter 3. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the 2.5–inch secondary storage drive 1.
  • Page 35 Figure 40. Opening the drive bay Figure 41. Removing the 2.5–inch secondary storage drive Figure 42. Removing the 2.5–inch secondary storage drive bracket Chapter 4 Replacing hardware...
  • Page 36 Figure 43. Removing the 2.5–inch secondary storage drive bezel Figure 44. Installing the 2.5–inch secondary storage drive bezel Figure 45. Installing the 2.5–inch secondary storage drive bracket ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 37: Replacing A Memory Module

    Figure 46. Installing the 2.5–inch secondary storage drive Figure 47. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing a memory module Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 38 Figure 48. Installation order for memory modules 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2. Remove the front bezel. See “Replacing the front bezel” on page 25. 3. Replace a memory module. Note: During the installation, ensure that you align the memory module to the slot and press down on both ends until the latches are fully engaged with a click.
  • Page 39: Replacing A Pci Express Card

    Figure 50. Removing the memory module Figure 51. Installing the memory module Figure 52. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing a PCI Express card Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 40 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2. Remove the front bezel. See “Replacing the front bezel” on page 25. 3. Replace a PCI Express card. Note: When you remove the PCI Express card, press the latch to disengage it from the slot. Then, gently remove the card from the slot.
  • Page 41: Replacing The Wi-Fi Card

    Figure 55. Installing the PCI Express card Figure 56. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the Wi-Fi card Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 42 Figure 57. Opening the drive bay Figure 58. Removing the Wi-Fi card shield (type 1 and type 2) Figure 59. Disconnecting the Wi-Fi antennas and removing the Wi-Fi card (type 1 and type 2) ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 43: Replacing The M.2 Solid-State Drive

    Figure 60. Installing the Wi-Fi card and connecting the Wi-Fi antennas (type 1 and type 2) Figure 61. Installing the Wi-Fi card shield (type 1 and type 2) Figure 62. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the M.2 solid-state drive Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 44 Figure 63. Opening the drive bay Figure 64. Removing the M.2 solid-state drive heat sink ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 45 Figure 65. Unlocking the M.2 solid-state drive clip Figure 66. Removing the M.2 solid-state drive Figure 67. Installing the M.2 solid-state drive Chapter 4 Replacing hardware...
  • Page 46 Figure 68. Locking the M.2 solid-state drive clip Figure 69. Installing the M.2 solid-state drive heat sink Figure 70. Closing the drive bay • Type 2 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 47 Figure 71. Opening the drive bay Figure 72. Removing the M.2 solid-state drive heat sink Chapter 4 Replacing hardware...
  • Page 48 Figure 73. Unlocking the M.2 solid-state drive clip Figure 74. Removing the M.2 solid-state drive Figure 75. Installing the M.2 solid-state drive ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 49 Figure 76. Locking the M.2 solid-state drive clip Figure 77. Installing the M.2 solid-state drive heat sink Figure 78. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Chapter 4 Replacing hardware...
  • Page 50: Replacing The M.2 Solid-State Drive Bracket

    Replacing the M.2 solid-state drive bracket Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide. 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2. Remove the front bezel. See “Replacing the front bezel” on page 25. 3.
  • Page 51 Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety and proper Underwriters Laboratories (UL) certification. CAUTION: Hazardous moving parts. Keep fingers and other body parts away. CAUTION: Never remove the cover on a power supply or any part that has the following label attached.
  • Page 52: Replacing The Wi-Fi Antennas

    Figure 82. Removing the power supply assembly Figure 83. Installing the power supply assembly Figure 84. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the Wi-Fi antennas Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 53 Replacing the front Wi-Fi antenna 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2. Remove the front bezel. See “Replacing the front bezel” on page 25. 3. Remove the storage drive if necessary. See “Replacing the storage drive” on page 27. 4.
  • Page 54: Replacing The Internal Speaker

    3. Replace the rear Wi-Fi antenna. Figure 87. Removing the rear Wi-Fi antenna Figure 88. Installing the rear Wi-Fi antenna Replacing the internal speaker Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide. 1.
  • Page 55 Figure 89. Opening the drive bay Figure 90. Removing the internal speaker Figure 91. Installing the internal speaker Chapter 4 Replacing hardware...
  • Page 56: Replacing The Illuminated Red Dot Cable

    Figure 92. Closing the drive bay 5. Connect the internal speaker cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the illuminated red dot cable Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 57 Figure 94. Removing the sleeve Figure 95. Removing the illuminated red dot cable Figure 96. Installing the illuminated red dot cable Chapter 4 Replacing hardware...
  • Page 58: Replacing The Thermal Sensor

    Figure 97. Installing the sleeve Figure 98. Closing the drive bay 5. Connect the new illuminated red dot cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the thermal sensor Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 59 Figure 99. Opening the drive bay Figure 100. Removing the thermal sensor Figure 101. Installing the thermal sensor Chapter 4 Replacing hardware...
  • Page 60: Replacing The Front I/O Bracket

    Figure 102. Closing the drive bay 5. Connect the new thermal sensor cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the front I/O bracket Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 61: Replacing The Power Button

    Figure 104. Installing the front I/O bracket 5. Connect the power button cable and the card reader cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the power button Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 62: Replacing The Card Reader Board

    Figure 106. Installing the power button 5. Connect the power button cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the card reader board Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 63: Replacing The Heat Sink And Fan Assembly

    Figure 108. Removing the card reader board Figure 109. Installing the card reader board Figure 110. Installing the card reader 5. Connect the card reader cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the heat sink and fan assembly Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 64 1. Remove the computer cover. See “Removing the computer cover” on page 24. 2. Remove the front bezel. See “Replacing the front bezel” on page 25. 3. Disconnect the microprocessor fan cable from the system board. 4. Replace the heat sink and fan assembly. Figure 111.
  • Page 65: Replacing The Microprocessor

    Figure 113. Installing the heat sink and fan assembly Figure 114. Closing the drive bay 5. Connect the microprocessor fan cable to the system board. 6. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the microprocessor Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 66 • 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. Figure 115.
  • Page 67: Replacing The Coin-Cell Battery

    Figure 118. Installing the microprocessor Figure 119. Pivoting the microprocessor socket downward Figure 120. Locking the microprocessor socket retainer 5. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the coin-cell battery Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 68 Note: 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 coin-cell battery lasts forever.
  • Page 69: Replacing The E-Lock

    Figure 124. Placing the coin-cell battery Figure 125. Pressing the coin-cell battery downward until it is fully engaged with a click Figure 126. Closing the drive bay 4. Complete the replacement. See “Completing the parts replacement” on page 68. To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” topic in the Safety and Warranty Guide.
  • Page 70: Replacing The Cover Presence Switch

    Figure 127. Removing the E-lock Figure 128. Installing the E-lock 4. Connect the E-lock cable to the system board. 5. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the cover presence switch Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 71: Replacing The System Board And Chassis

    Figure 129. Removing the cover presence switch Figure 130. Installing the cover presence switch 4. Connect the new cover presence switch cable to the system board. 5. Complete the replacement. See “Completing the parts replacement” on page 68. Replacing the system board and chassis Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 72: Completing The Parts Replacement

    Figure 131. Removing the system board Figure 132. Installing the system board 12. Route all the cables that you disconnected from the failing system board, and then reconnect the cables to the new system board. 13. Complete the replacement. See “Completing the parts replacement” on page 68. Completing the parts replacement After completing the installation or replacement for all parts, reinstall the computer cover and reconnect the cables.
  • Page 73 2. 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. 3. Reinstall the computer cover. Figure 133. Reinstalling the computer cover 4.
  • Page 74 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 75: Appendix A. Notices

    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.
  • Page 76 ThinkCentre M720s User Guide and Hardware Maintenance Manual...
  • Page 77: Appendix B. Trademarks

    Appendix B. Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: Lenovo The Lenovo logo ThinkCentre The ThinkCentre logo DisplayPort is a trademark of the Video Electronics Standards Association. Other company, product, or service names may be trademarks or service marks of others.
  • Page 78 ThinkCentre M720s User Guide and Hardware Maintenance Manual...