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Lenovo ThinkCentre M725s User Manual And Hardware Maintenance Manual

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M725s User Guide and Hardware
Maintenance Manual
Energy Star Machine Types: 10VT, 10VU, 10VV, and 10VX

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  Summary of Contents for Lenovo ThinkCentre M725s

  • Page 1 M725s User Guide and Hardware Maintenance Manual Energy Star Machine Types: 10VT, 10VU, 10VV, and 10VX...
  • Page 2 Important Product Information Guide and Appendix A “Notices” on page 63. First Edition (July 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 storage drive ..Replacing the power button board and the card reader ....© Copyright Lenovo 2018...
  • Page 4 M725s User Guide and Hardware Maintenance Manual...
  • Page 5: Chapter 1. Overview

    Power indicator Microphone connector Headphone connector USB 3.1 Gen 2 connectors (2) USB 3.1 Gen 1 connectors (2) Illuminated red dot Internal speaker (optional) Optical drive eject button Used to eject the tray of the optical drive. © Copyright Lenovo 2018...
  • Page 6 Optical drive activity indicator This indicator is on when the optical drive is in use. Storage drive activity indicator This indicator is on when the storage drive is in use. Card reader slot Used to read data from a supported memory card. Power button Used to turn on your computer.
  • Page 7: Rear View

    Rear view Note: Your computer model might look slightly different from the illustration. Figure 2. Rear view Microphone connector VGA-out connector ® DisplayPort 1.2 out connectors (2) USB 3.1 Gen 1 connectors (2) USB 2.0 connectors (2) PS/2 keyboard connector Audio line-out connector Audio line-in connector Ethernet connector...
  • Page 8 Used to send video signals from the computer to another video device, such as a monitor. DisplayPort 1.2 out connector Used to send audio and video signals from the computer to another audio or video device, such as a high- performance monitor.
  • Page 9: System Board

    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 Used to secure a smart cable clip. Power cord connector Used to connect the power cord to your computer for power supply.
  • Page 10: Machine Type And Model Label

    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 to the computer as shown.
  • Page 11: Chapter 2. Specifications

    • PS/2 keyboard connector • PS/2 mouse connector • Serial connector • USB connectors Expansion • Card reader (optional) • Memory slots • Optical drive • PCI Express x1 card slot • PCI Express x16 graphics card slot © Copyright Lenovo 2018...
  • Page 12 • 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: 6.0 kg (13.2 lb) M725s User Guide and Hardware Maintenance Manual...
  • Page 13: Chapter 3. Computer Locks

    Depending on the type selected, the cable lock can be operated with a key or a 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 6.
  • Page 14 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.
  • Page 15: 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 16: Locating Frus (Including Crus)

    Locating FRUs (including CRUs) Notes: • Some of the following 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 17 Figure 8. Locating FRUs (including CRUs) Self-service CRUs Optional-service CRUs Non-CRUs Computer cover Wi-Fi card Heat sink fan duct Coin-cell battery Wi-Fi card shield Heat sink and fan assembly Memory module Power supply assembly Microprocessor M.2 solid-state drive System board M.2 solid-state drive bracket Card reader Power button board...
  • Page 18: Replacing External Options

    Self-service CRUs Optional-service CRUs Non-CRUs Optical drive bracket Optical drive cable Optical drive Storage drive cable Front bezel Illuminated red dot Dust shield Thermal sensor Keyboard Internal speaker Mouse Chassis Power cord Wi-Fi antennas (2) Primary storage drive (a 2.5-inch Cover presence switch (intrusion or 3.5-inch storage drive) switch)
  • Page 19 Figure 10. Assembling the vertical stand Figure 11. Installing the vertical stand • Dust shield Chapter 4 Replacing hardware...
  • Page 20: Removing The Computer Cover

    Figure 12. Removing the dust shield Figure 13. Installing the dust shield 4. Reconnect the external cables and power cords to the corresponding connectors on the computer. Removing the computer cover Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 21: Replacing The Front Bezel

    Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. 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 from the computer. 3.
  • Page 22: Replacing The Optical Drive

    Figure 15. Removing the front bezel Figure 16. Installing the front bezel 4. Complete the replacement. See “Completing the parts replacement” on page 60. Replacing the optical drive Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 23 1. Remove external options. See “Replacing external options” on page 14. 2. Remove the computer cover. See “Removing the computer cover” on page 16. 3. Remove the front bezel. See “Replacing the front bezel” on page 17. 4. Disconnect the signal cable and the power cable from the optical drive. 5.
  • Page 24: Pivoting The Drive Bay Assembly Upward And Downward

    Figure 19. Installing the optical drive bracket Figure 20. Installing the optical drive 6. Connect the signal cable and the power cable to the new optical drive. 7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60.
  • Page 25 Figure 21. Pivoting the drive bay assembly upward Figure 22. Pivoting the drive bay assembly downward 5. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Chapter 4 Replacing hardware...
  • Page 26: Replacing The Storage Drive

    Replacing the storage drive Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide. 1. Remove external options. See “Replacing external options” on page 14. 2. Remove the computer cover. See “Removing the computer cover” on page 16. 3.
  • Page 27 Note: If you replace the 3.5-inch primary storage drive, skip this step. Figure 25. Removing the 2.5-inch primary storage drive from the storage converter Note: If you replace the 3.5-inch primary storage drive, skip this step. Figure 26. Installing the 2.5-inch primary storage drive into the storage converter Chapter 4 Replacing hardware...
  • Page 28 Figure 27. Installing the 3.5-inch primary storage drive or storage converter Figure 28. Installing the primary storage drive bracket • 2.5-inch secondary storage drive M725s User Guide and Hardware Maintenance Manual...
  • Page 29 Figure 29. Removing the outer 2.5-inch secondary storage drive bracket Figure 30. Removing the inner 2.5-inch secondary storage drive bracket Figure 31. Removing the 2.5-inch secondary storage drive Chapter 4 Replacing hardware...
  • Page 30 Figure 32. Installing the 2.5-inch secondary storage drive Figure 33. Installing the inner 2.5-inch secondary storage drive bracket M725s User Guide and Hardware Maintenance Manual...
  • Page 31: Replacing The Power Button Board And The Card Reader

    Figure 34. Installing the outer 2.5-inch secondary storage drive bracket 7. Connect the signal cable and the power cable to the new storage drive. 8. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement”...
  • Page 32 Figure 35. Removing the front I/O bracket Figure 36. Removing the power button board Figure 37. Removing the card reader bracket M725s User Guide and Hardware Maintenance Manual...
  • Page 33 Figure 38. Removing the card reader Figure 39. Installing the card reader Chapter 4 Replacing hardware...
  • Page 34 Figure 40. Installing the card reader bracket Figure 41. Installing the power button board M725s User Guide and Hardware Maintenance Manual...
  • Page 35: Replacing The Illuminated Red Dot

    Figure 42. Installing the front I/O bracket 6. Connect the new power button board cable and the new card reader cable to the system board. 7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60.
  • Page 36 Figure 43. Removing the illuminated red dot cover Figure 44. Removing the illuminated red dot Figure 45. Installing the illuminated red dot M725s User Guide and Hardware Maintenance Manual...
  • Page 37: Replacing The Internal Speaker

    Figure 46. Installing the illuminated red dot cover 7. Connect the new illuminated red dot cable to the system board. 8. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the internal speaker Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 38 Figure 48. Pivoting the drive bay assembly upward Figure 49. Removing the internal speaker M725s User Guide and Hardware Maintenance Manual...
  • Page 39: Replacing The Thermal Sensor

    Figure 50. Installing the internal speaker Figure 51. Pivoting the drive bay assembly downward 6. Connect the new internal speaker cable to the system board. 7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60.
  • Page 40 5. Replace the thermal sensor. Figure 52. Pressing the tab Figure 53. Pivoting the drive bay assembly upward M725s User Guide and Hardware Maintenance Manual...
  • Page 41 Figure 54. Removing the thermal sensor Figure 55. Installing the thermal sensor Chapter 4 Replacing hardware...
  • Page 42: Replacing The Wi-Fi Card

    Figure 56. Pivoting the drive bay assembly downward 6. Connect the new thermal sensor cable to the system board. 7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the Wi-Fi card Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 43 Figure 58. Disconnecting the Wi-Fi antenna cables Figure 59. Removing the Wi-Fi card Figure 60. Installing the Wi-Fi card Figure 61. Connecting the Wi-Fi antenna cables Chapter 4 Replacing hardware...
  • Page 44: Replacing The Wi-Fi Antennas

    Figure 62. Installing the Wi-Fi card shield 6. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the Wi-Fi antennas Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 45 Figure 64. Installing the front Wi-Fi antenna • Rear Wi-Fi antenna Figure 65. Removing the rear Wi-Fi antenna Chapter 4 Replacing hardware...
  • Page 46: Replacing The M.2 Solid-State Drive

    Figure 66. Installing the rear Wi-Fi antenna 6. Connect the new Wi-Fi antenna cables to the Wi-Fi card. 7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. 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 47 Figure 68. Removing the M.2 solid-state drive Figure 69. Installing the M.2 solid-state drive Figure 70. Inserting the stopper • Type 2 Chapter 4 Replacing hardware...
  • Page 48 Figure 71. Pulling out the stopper Figure 72. Removing the M.2 solid-state drive Figure 73. Installing the M.2 solid-state drive M725s User Guide and Hardware Maintenance Manual...
  • Page 49: Replacing The M.2 Solid-State Drive Bracket

    Figure 74. Inserting the stopper 6. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. 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.
  • Page 50: Replacing The Coin-Cell Battery

    Figure 76. Installing the M.2 solid-state drive bracket 7. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the coin-cell battery Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 51 Figure 77. Disengaging the latch Figure 78. Removing the coin-cell battery Chapter 4 Replacing hardware...
  • Page 52: Replacing A Memory Module

    Figure 79. Installing the coin-cell battery Figure 80. Securing the coin-cell battery with the latch 6. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing a memory module Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 53 1. Remove external options. See “Replacing external options” on page 14. 2. Remove the computer cover. See “Removing the computer cover” on page 16. 3. Remove the front bezel. See “Replacing the front bezel” on page 17. 4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on page 20.
  • Page 54: Replacing The Heat Sink And Fan Assembly

    Figure 82. Installing a memory module 6. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. 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 55 Figure 83. Removing the heat sink fan duct Figure 84. Removing the heat sink and fan assembly Chapter 4 Replacing hardware...
  • Page 56: Replacing The Microprocessor

    Figure 85. Installing the heat sink and fan assembly Figure 86. Installing the heat sink fan duct 7. Connect the new microprocessor fan cable to the system board. 8. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement”...
  • Page 57 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. Remove external options. See “Replacing external options” on page 14. 2.
  • Page 58: Replacing A Pci Express Card

    Figure 89. Installing the microprocessor Figure 90. Securing the retainer with the handle 8. Route all the cables that you disconnected from the system board, and then reconnect the cables to the system board. 9. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement”...
  • Page 59 3. Remove the front bezel. See “Replacing the front bezel” on page 17. 4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on page 20. 5. Replace a PCI Express card. Note: If the card is held in place by a retaining latch, press the latch as shown to disengage the latch. Then, gently remove the card from the slot.
  • Page 60: Replacing The Cover Presence Switch

    6. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the cover presence switch Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 61: Replacing The Power Supply Assembly

    Figure 94. Installing the cover presence switch 5. Connect the new cover presence switch cable to the system board. 6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the power supply assembly Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 62 Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. 1. Remove external options. See “Replacing external options” on page 14. 2.
  • Page 63: Replacing The System Board

    Figure 96. Installing the power supply assembly 7. Connect the new power supply assembly cables to the system board. 8. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Replacing the system board Attention: Do not open your computer or attempt any repairs before reading the Important Product Information Guide.
  • Page 64: Completing The Parts Replacement

    14. Route and connect all the cables to the new system board. 15. Pivot the drive bay assembly downward and reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on page 60. Completing the parts replacement After completing the installation or replacement for all parts, reinstall the computer cover and reconnect the cables.
  • Page 65 Figure 97. Reinstalling the computer cover 4. Reinstall external options. See “Replacing external options” on page 14. 5. Place the computer in an upright position. 6. If a locking device is available, use it to lock the computer. 7. Reconnect the external cables and power cords to the corresponding connectors on the computer. Chapter 4 Replacing hardware...
  • Page 66 M725s User Guide and Hardware Maintenance Manual...
  • Page 67: 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 68 M725s User Guide and Hardware Maintenance Manual...
  • Page 69: 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 and Mini DisplayPort are trademarks of the Video Electronics Standards Association. Other company, product, or service names may be trademarks or service marks of others.
  • Page 70 M725s User Guide and Hardware Maintenance Manual...