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Lenovo ThinkCentre M75n User Manual
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Lenovo ThinkCentre M75n User Manual

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  • Page 1 ThinkCentre M75n User Guide...
  • Page 2 • Setup Guide First Edition (April 2020) © Copyright Lenovo 2020. 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

    ....Change BIOS settings before installing a new Use Lenovo Vantage ... . . operating system ....
  • Page 4 Replace a CRU (for fan models) ..Call Lenovo ....Power adapter and power cord ..

  • Page 5: About This Documentation

    • Depending on the version of operating systems and programs, some user interface instructions might not be applicable to your computer. • Documentation content is subject to change without notice. Lenovo makes constant improvements on the documentation of your computer, including this User Guide. To get the latest documentation, go to: https://pcsupport.lenovo.com...
  • Page 6 ThinkCentre M75n User Guide...

  • Page 7: Chapter 1. Meet Your Computer

    Chapter 1. Meet your computer Fan models Fanless models This indicator is on when the computer is on. ® 1. ThinkCentre © Copyright Lenovo 2020...

  • Page 8: Front

    USB printer. Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB 5. USB 3.2 connector Gen 2 storage device, or USB printer. Connect a headset or headphones to your computer. 6. Headset connector ThinkCentre M75n User Guide...

  • Page 9: Rear

    • Connect to USB-C accessories to help expand your computer functionality. To purchase USB-C accessories, go to https://www.lenovo.com/accessories Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. This connector supports the smart power-on 5.

  • Page 10: Bottom

    Connect the matched DIN rail bracket, power adapter bracket, or VESA mount bracket with the matched screws (M3 x 4 mm x 3 pcs) when you install the ® 1. VESA threaded holes computer on a wall. ThinkCentre M75n User Guide...

  • Page 11: System Board

    System board Fan models Microprocessor fan connector Coin-cell battery connector Internal speaker connector Clear CMOS (Complementary Metal Oxide Semiconductor) / Recovery jumper M.2 solid-state drive slot 1 M.2 solid-state drive slot 2 (M.2 SATA solid-state drive compatible) Wi-Fi card slot Cover presence switch connector (intrusion switch connector) Chapter 1...
  • Page 12 Semiconductor) / Recovery jumper M.2 solid-state drive slot 1 4G/5G LTE slot Internal speaker connector M.2 solid-state drive slot 2 (for M.2 SATA solid-state drive only) Wi-Fi card slot Cover presence switch connector (intrusion switch connector) ThinkCentre M75n User Guide...

  • Page 13: Features And Specifications

    Features and specifications Fan models: • Width: 179 mm (7.05 inches) • Height: 22 mm (0.87 inches) • Depth: 88 mm (3.46 inches) Dimensions Fanless models: • Width: 179 mm (7.05 inches) • Height: 34.5 mm (1.36 inches) • Depth: 88 mm (3.46 inches) Maximum configuration as shipped: Weight (without the package) •...

  • Page 14: Statement On Usb Transfer Rate

    USB connectors on this device will vary and will be slower than the data rate listed below for each corresponding device. USB device Data rate (Gbit/s) 3.2 Gen 1 / 3.1 Gen 1 3.2 Gen 2 / 3.1 Gen 2 3.2 Gen 2 × 2 ThinkCentre M75n User Guide...

  • Page 15: Chapter 2. Get Started With Your Computer

    With a Microsoft account, you can: • Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook. com. • Sync personalized settings across other Windows-based devices. © Copyright Lenovo 2020...

  • Page 16: Windows User Interface

    Display the latest notifications from apps and provide quick access to some 12. Action center features. Open the Start menu • Click the Start button. • Press the Windows logo key on the keyboard. Open the Start context menu Right-click the Start button. ThinkCentre M75n User Guide...

  • Page 17: Connect To Networks

    Access Lenovo Vantage Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box. To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.

  • Page 18: Use Multimedia

    • The available features vary depending on the computer model. • Lenovo Vantage makes periodic updates of the features to keep improving your experience with your computer. The description of features might be different from that on your actual user interface.

  • Page 19: Use The I/O Box (For Selected Fanless Models)

    Use the I/O box (for selected fanless models) If your computer has an I/O box, you can use it to supply power to your computer and expand your computer functionality. https://support.lenovo.com/solutions/iobox Front • Connect an external modem, a serial printer, or other devices that use a serial connector.
  • Page 20 Digital Input and Digital Output Pin definition mapping table D-OUT pin number D-OUT pin definition D-IN pin number D-IN pin definition Digital Output-1 Digital Input-1 Digital Output-2 Digital Input-2 Digital Input-3 Digital Output-3 Digital Output-4 Digital Input-4 ThinkCentre M75n User Guide...
  • Page 21 Digital Input and Digital Output Digital Input • Channels: 4 • Input type: NPN, PNP • Dry contact: – Logic 0: Open – Logic 1: Close to GND • Wet contact: – Logic 0: 0 V to 0.8 V – Logic 1: 5 V to 30 V •...
  • Page 22 ThinkCentre M75n User Guide...

  • Page 23: Chapter 3. Explore Your Computer

    The default power plan varies depending on your computer models. To know the machine type of your computer model, see “Before you contact Lenovo” on page 74. Table 1. Default power plan when plugged into ac power (for machine types: 11BS, 11BT, 11BU, 11BV, 11GW, 11GX, 11GV, 11GY, 11C0, 11GB, 11HU, 11HV, 11HW, 11HX, 11HY, 11J0, 11J1, and 11J2) •...

  • Page 24: Purchase Accessories

    Bluetooth turned on. You can use Bluetooth for data transfer or remote control and communication. Purchase accessories Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your computer. Options include memory modules, storage devices, network cards, power adapters, keyboards, mice, and more.

  • Page 25: Chapter 4. Secure Your Computer And Information

    Note: You are responsible for evaluating, selecting, and implementing the locking device and security feature. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance of the locking device and security feature. You can purchase computer locks from Lenovo.

  • Page 26: Log In To Your Computer Securely

    Setting a hard disk password prevents unauthorized access to the data on the storage drive. When a hard disk password is set, you are prompted to enter a valid password each time you try to access the storage drive. ThinkCentre M75n User Guide...

  • Page 27: Use Software Security Solutions

    • If the supervisor password is forgotten, it might not be removed by clearing CMOS depending on your BIOS settings. • If the hard disk password is forgotten, Lenovo cannot remove the password or recover data from the storage drive.

  • Page 28: Use Antivirus Programs

    The computer is preinstalled with an antivirus program to help you guard against, detect, and eliminate viruses. Lenovo provides a full version of antivirus software on the computer with a free 30-day subscription. After 30 days, you must renew the license to continue receiving the antivirus software updates.

  • Page 29: Use Smart Usb Protection

    2. Select Security ➙ Cover Tamper Detected and press Enter. 3. Select Enabled and press Enter. 4. Press F10 or Fn+F10 to save the changes and exit. When the cover presence switch connector on the system board is enabled, if the cover presence switch detects that the computer cover is not correctly installed or closed, an error message will be displayed when you turn on the computer.
  • Page 30 ThinkCentre M75n User Guide...

  • Page 31: Chapter 5. Uefi Bios

    Change the display language of UEFI BIOS UEFI BIOS supports four display languages: English, French, Russian, and simplified Chinese. To change the display language of UEFI BIOS: 1. Select Main ➙ Language and press Enter. 2. Set the display language as desired. © Copyright Lenovo 2020...

  • Page 32: Change The Display Mode Of Uefi Bios

    • If the storage device is a disc, ensure that the computer is on or turn on the computer. Then, insert the disc into the optical drive. • If the storage device is an external device other than a disc, connect the storage device to the computer. ThinkCentre M75n User Guide...

  • Page 33: Enable Or Disable The Configuration Change Detection Feature

    4. Press F10 or Fn+F10 to save the changes and exit. Enable or disable the ErP LPS compliance mode (for selected models) Lenovo computers meet the eco-design requirements of the ErP Lot 3 regulation. For more information, go https://www.lenovo.com/us/en/compliance/eco-declaration Chapter 5...

  • Page 34: Change The Its Performance Mode (For Selected Models)

    BIOS settings vary by operating system. Change the BIOS settings before installing a new operating system. Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular Windows 10 version, check the compatibility list for the Windows version. For details, go to: https://support.lenovo.com/us/en/solutions/windows-support ThinkCentre M75n User Guide...

  • Page 35: Update Uefi Bios

    Download and install the latest UEFI BIOS update package by one of the following methods: • From Lenovo Vantage: Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is available, follow the on-screen instructions to download and install the package.

  • Page 36: Clear Cmos

    10. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1. 11. To prevent data loss, ensure that BIOS settings are restored to an earlier point. For BIOS configurations, see Chapter 5 “UEFI BIOS” on page 25. ThinkCentre M75n User Guide...

  • Page 37: Chapter 6. Troubleshooting, Diagnostics, And Recovery

    3. See Chapter 6 “Troubleshooting, diagnostics, and recovery” on page 31 to resolve the problem you are experiencing, run the diagnostic program, and recover your operating system. 4. If the problem persists, contact Lenovo. See Chapter 8 “Help and support” on page 73. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms.

  • Page 38: Startup Problems

    – Ensure that the Optane memory is not removed. – Ensure that the Optane memory is not damaged. Check the Optane memory using diagnostic tools. The computer beeps multiple times before Ensure that no keys are stuck. the operating system starts up. ThinkCentre M75n User Guide...

  • Page 39: Audio Problems

    Audio problems Problem Solution • If you are using powered external speakers that have an On/Off control, ensure that: – The On/Off control is set to the On position. – The speaker power cable is connected to a properly grounded, functional ac electrical outlet.
  • Page 40 4. Right-click each Wi-Fi device, and then click Enable device. • Enable the Wi-Fi feature in Windows Settings. 1. Open the Start menu. 2. Click Settings ➙ Network & Internet ➙ Wi-Fi. 3. Enable the Wi-Fi feature. • Update or reinstall the Wi-Fi driver. ThinkCentre M75n User Guide...
  • Page 41 Problem Solution • Enable the Bluetooth feature in UEFI BIOS. • Enable all Bluetooth devices. 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation if prompted. 3. Expand Bluetooth to display all Bluetooth devices. Right-click each Bluetooth device, and then click Enable device.

  • Page 42: Performance Problems

    Uninstall/ Change or Uninstall. • Right-click a blank area on the taskbar and open Task Manager. The free memory space is insufficient. Then, end some tasks you are not performing. • Install additional memory modules. ThinkCentre M75n User Guide...

  • Page 43: Storage Drive Problems

    Storage drive problems Problem Solution • Ensure that the signal cables and power cables for all the storage drives are connected correctly. • Ensure that the computer is configured correctly to support the storage drives. Some or all storage drives are missing from –...

  • Page 44: Software Problems

    Lenovo diagnostic tools For information about Lenovo diagnostic tools, go to: https://pcsupport.lenovo.com/lenovodiagnosticsolutions Recovery This section introduces the recovery information of the Windows 10 operating system. Ensure that you read and follow the on-screen recovery instructions. The data on your computer might be deleted during the recovery process.

  • Page 45: Use Advanced Options

    Windows recovery programs are damaged. If you did not create a recovery USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to: https://pcsupport.lenovo.com/supportphonelist Create a recovery USB drive Attention: The creation process deletes anything stored on the USB drive.

  • Page 46: Update The Device Driver

    Download and install the latest driver by one of the following methods: • From Lenovo Vantage: Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is available, follow the on-screen instructions to download and install the package.

  • Page 47: Chapter 7. Cru Replacement

    If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You might be required to return the defective part that is replaced by the CRU.

  • Page 48: Power Adapter And Power Cord

    1. Remove any media from the drives and turn off all connected devices and the computer. 2. Disconnect the power cord from the electrical outlet and disconnect all cables from the computer. 3. Remove the power adapter. 4. Remove the power cord. ThinkCentre M75n User Guide...

  • Page 49: Din Rail Bracket Kit

    5. Install the power cord. 6. Install the power adapter. 7. Reconnect the external cables to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. DIN rail bracket kit Note: The DIN rail bracket kit is available only on some models. Prerequisite Before you start, read Appendix A “Important safety information”...
  • Page 50 3. Remove the computer with the DIN rail bracket from the rail. 4. Turn over the computer so that the bottom cover is facing up. Then, remove the DIN rail bracket. 5. Install the DIN rail bracket. ThinkCentre M75n User Guide...

  • Page 51: Power Adapter Bracket Kit

    6. If you have not installed the rail, install it to a place where you want to mount the computer. 7. Install the computer with the DIN rail bracket to the rail. 8. Reconnect the external cables to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet.
  • Page 52 3. Remove the screw that secures the power adapter bracket to the wall mount bracket. 4. Remove the power adapter bracket from the wall mount bracket. 5. Remove the power cord from the power adapter. See “Power adapter and power cord” on page 42. ThinkCentre M75n User Guide...
  • Page 53 6. Remove the power adapter from the power adapter bracket. 7. Turn over the computer so that the bottom cover is facing up. 8. Remove the power adapter bracket from the computer. 9. Install the power adapter bracket to the computer. 10.
  • Page 54 14. Install the screw to secure the power adapter bracket to the wall mount bracket. 15. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. ThinkCentre M75n User Guide...

  • Page 55: Vesa Mount Bracket Kit

    VESA mount bracket kit Note: The VESA mount bracket kit is available only on some models. Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions. Replacement procedure 1. Remove any media from the drives and turn off all connected devices and the computer. 2.

  • Page 56: Rear Wi-Fi Antenna

    Rear Wi-Fi antenna Note: The rear Wi-Fi antenna is available only on some models. Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions. ThinkCentre M75n User Guide...

  • Page 57: Bottom Cover

    Replacement procedure 1. Remove any media from the drives and turn off all connected devices and the computer. 2. Disconnect the power cord from the electrical outlet and disconnect all cables from the computer. 3. Remove the rear Wi-Fi antenna. 4.
  • Page 58 7. Install the bottom cover. 8. Turn over the computer so that the bottom cover is facing down. 9. Reinstall the bracket you have removed. 10. If a locking device is available, use it to lock the computer. ThinkCentre M75n User Guide...

  • Page 59: Wi-Fi Card

    11. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Wi-Fi card Note: The Wi-Fi card and Wi-Fi antenna cables are available only on some models. Prerequisite Before you start, read Appendix A “Important safety information”...

  • Page 60: M.2 Solid-State Drive

    5. Reinstall the removed parts. Turn over the computer so that the bottom cover is facing down. 6. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. ThinkCentre M75n User Guide...

  • Page 61: Replace A Cru (For Fanless Models)

    Replace a CRU (for fanless models) Follow the replacement procedure to replace a CRU. Power adapter and power cord Note: The power adapter and power cord are available only on some models. Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions.
  • Page 62 4. Remove the power cord. 5. Install the power cord. 6. Install the power adapter. ThinkCentre M75n User Guide...

  • Page 63: Heat Sink Cover

    7. Reconnect the external cables to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Heat sink cover Note: The heat sink cover is available only on some models. Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions.

  • Page 64: Din Rail Bracket Kit

    3. Remove the computer with the DIN rail bracket from the rail. 4. Remove the heat sink cover, if any. See “Heat sink cover” on page 57. 5. Turn over the computer so that the bottom cover is facing up. Then, remove the DIN rail bracket. ThinkCentre M75n User Guide...
  • Page 65 6. Install the DIN rail bracket. 7. Reinstall all removed parts. 8. If you have not installed the rail, install it to a place where you want to mount the computer. Chapter 7 CRU replacement...

  • Page 66: Power Adapter Bracket Kit

    1. Remove any media from the drives and turn off all connected devices and the computer. 2. Disconnect the power cord from the electrical outlet and disconnect all cables from the computer. 3. Remove the heat sink cover, if any. See “Heat sink cover” on page 57. ThinkCentre M75n User Guide...
  • Page 67 4. Remove the screw that secures the power adapter bracket to the wall mount bracket. 5. Remove the power adapter bracket from the wall mount bracket. 6. Remove the power cord from the power adapter. See “Power adapter and power cord” on page 55. 7.
  • Page 68 11. Turn over the computer so that the bottom cover is facing down. 12. Install the power adapter into the power adapter bracket. 13. Install the power cord to the power adapter. See “Power adapter and power cord” on page 55. ThinkCentre M75n User Guide...

  • Page 69: Vesa Mount Bracket Kit

    14. Install the power adapter bracket to the wall mount bracket. 15. Install the screw to secure the power adapter bracket to the wall mount bracket. 16. Reinstall all removed parts, if any. 17. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet.
  • Page 70 4. Remove the screw that secures the VESA mount bracket. 5. Remove the VESA mount bracket from the wall mount bracket. 6. Turn over the computer so that the bottom cover is facing up. 7. Remove the VESA mount bracket from the computer. ThinkCentre M75n User Guide...

  • Page 71: I/O Box

    8. Install the VESA mount bracket to the computer. 9. Install the VESA mount bracket to the wall mount bracket. 10. Install the screw to secure the VESA mount bracket to the wall mount bracket. 11. Reinstall all removed parts, if any. 12.
  • Page 72 5. Loosen the two screws that secure the USB-C adapter to the I/O box to remove the USB-C adapter. Remove the three screws that secure the I/O box to the computer. Then, remove the I/O box. ThinkCentre M75n User Guide...

  • Page 73: Rear Wi-Fi Antenna

    6. Install a new I/O box. Then, install the USB-C adapter. 7. Turn over the computer and the I/O box together so that the computer is on top. 8. Reinstall all removed parts, if any. Then, reconnect the power cord and all disconnected cables to the computer and the I/O box.

  • Page 74: Bottom Cover

    5. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Bottom cover Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions. ThinkCentre M75n User Guide...

  • Page 75: Wi-Fi Card

    Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
  • Page 76 5. Reinstall all removed parts. Turn over the computer so that the bottom cover is facing down. 6. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. ThinkCentre M75n User Guide...

  • Page 77: M.2 Solid-State Drives

    M.2 solid-state drives Prerequisite Before you start, read Appendix A “Important safety information” on page 77 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
  • Page 78 5. Reinstall all removed parts. Turn over the computer so that the bottom cover is facing down. 6. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. ThinkCentre M75n User Guide...

  • Page 79: Chapter 8. Help And Support

    How to access? Use Lenovo Vantage to: • Configure device settings. • Download and install UEFI BIOS, drivers and firmware • Open the Start menu and click Lenovo Vantage. updates. • Use Windows Search. • Secure you computer from outside threats.

  • Page 80: Call Lenovo

    Call Lenovo If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support Center. Before you contact Lenovo Before contacting Lenovo, ensure that your computer is connected to a monitor, a keyboard, and a mouse.

  • Page 81: Purchase Additional Services

    • Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty, trained service personnel are available to provide the applicable level of service.
  • Page 82 ThinkCentre M75n User Guide...

  • Page 83: Appendix A. Important Safety Information

    Customer Support Center for further guidance. • Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken, or damaged. © Copyright Lenovo 2020...
  • Page 84 Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for or by Lenovo, stop using that product until you can contact the product manufacturer for further instructions, or until you get a suitable replacement.
  • Page 85 Do not use them with any other products. For your safety, Lenovo provides a power cord with a grounded attachment plug to use with this product. To avoid electrical shock, always use the power cord and plug with a properly grounded outlet.
  • Page 86 If you intend to use your PC in a country or region that is different from your ordering location, please purchase an additional Lenovo power cord for the country or region where the PC will be used. Refer to the power cord guide provided in our Web site, , for details.
  • Page 87 Plugs and outlets DANGER If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged or corroded, do not use the outlet until it is replaced by a qualified electrician. Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement.
  • Page 88 If the coin-cell battery is not a CRU, do not attempt to replace the coin-cell battery. Replacement of the battery must be done by a Lenovo-authorized repair facility or technician. The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations.
  • Page 89 computer, power adapter, and many accessories produce some heat during normal operation. Extended contact with the body could cause discomfort or, potentially, a skin burn. • Do not charge the battery or operate your computer, power adapter, or accessories near flammable materials or in explosive environments.
  • Page 90 • If your monitor weighs more than 18 kg (39.68 lb), we recommend that it be moved or lifted by two people. Product disposal (TFT monitors): • The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local, state, or federal laws. ThinkCentre M75n User Guide...
  • Page 91 2 can be dangerous due to excessive sound pressure levels. If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5...
  • Page 92 Bright Light, possible skin or eye damage. Disconnect power before servicing. CAUTION: Infrared Light, possible skin or eye damage. Disconnect power before servicing. Eye comfort The property of the display in combination with following notes result in reduced eye fatigue and increased comfort. ThinkCentre M75n User Guide...
  • Page 93 For tips on how to minimize visual fatigue, please go to to visit https://www.lenovo.com/us/en/safecomp/ “Minimizing Visual Fatigue”. Tip-over hazard prevention notice The computer may cause harm to children if it is not located in an appropriate place. Follow the tips below to protect children from harm caused by the computer tipping over: •...
  • Page 94 The cause of a problem might be change in hardware, change in software, or any other actions that might have taken place. A log book can help you or a Lenovo technician determine the cause of a problem. • Back up your data on the storage drive regularly. You can restore the storage drive from a backup.
  • Page 95 When you move the computer to another country or region, you must take local electrical standards into consideration. If the local electrical outlet style is different from the type you are currently using, contact the Lenovo Customer Support Center to purchase either an electrical plug adapter or a new power cord. Clean your computer CAUTION: Remove any media from the drives and turn off all connected devices and the computer.
  • Page 96 ThinkCentre M75n User Guide...

  • Page 97: Appendix B. Accessibility And Ergonomic Information

    This chapter provides information about accessibility and ergonomics. Accessibility information Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater access to information and technology. This section provides information about the ways these users can get the most out of their computer experience.
  • Page 98 You can make the items on your screen easier to read by changing the item size. • To change the item size temporarily, use the Magnifier tool in Ease of Access Center. • To change the item size permanently: ThinkCentre M75n User Guide...
  • Page 99 Your computer provides industry-standard connectors that enable you to connect assistive devices. Documentation in accessible formats Lenovo provides electronic documentation in accessible formats, such as properly tagged PDF files or HyperText Markup Language (HTML) files. Lenovo electronic documentation is developed to ensure that visually impaired users can read the documentation through a screen reader.
  • Page 100 Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal) position. Type with a soft touch without pounding the keys. Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest. ThinkCentre M75n User Guide...

  • Page 101: Appendix C. Supplemental Information About The Ubuntu Operating System

    The LLW also is preinstalled on the computer. To access the LLW, go to the following directory: /usr/share/doc/lenovo-doc If you cannot view the LLW either from the Web site or from your computer, contact your local Lenovo office or reseller to obtain a printed version of the LLW.
  • Page 102 ThinkCentre M75n User Guide...

  • Page 103: Appendix D. Compliance And Tco Certified Information

    The full text of the system EU declaration of conformity is available at: https://www.lenovo.com/us/en/compliance/eu-doc Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the installation of option cards from other manufacturers.
  • Page 104 Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information about recycling Lenovo products, go to: https://www.lenovo.com/us/en/compliance/recycling...
  • Page 105 Collect and recycle a disused Lenovo computer or monitor If you are a company employee and need to dispose of a Lenovo computer or monitor that is the property of the company, you must do so in accordance with the Law for Promotion of Effective Utilization of Resources.
  • Page 106 If the battery needs to be replaced, contact your place of purchase or contact Lenovo for service. If you need to dispose of a lithium battery, insulate it with vinyl tape, contact your place of purchase or a waste-disposal operator, and follow their instructions.
  • Page 107 Disposing of battery packs from Lenovo products Your Lenovo device might contain a lithium-ion battery pack or a nickel metal hydride battery pack. You can find details on the battery pack in the product documentation. If you need to dispose of a battery pack, insulate it with vinyl tape, contact Lenovo sales, service, or your place of purchase, or a waste-disposal operator, and follow their instructions.
  • Page 108 Ukraine RoHS India RoHS RoHS compliant as per E-Waste (Management) Rules. Mainland China RoHS ThinkCentre M75n User Guide...
  • Page 109 Taiwan RoHS Electromagnetic emission notices Federal Communications Commission (FCC) Supplier’s Declaration of Conformity The following information refers to the following product: Product name: ThinkCentre M75n Appendix D. Compliance and TCO Certified information...
  • Page 110 • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult an authorized dealer or service representative for help. Lenovo is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user’s authority to operate the equipment.
  • Page 111 Klasse B. Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart. Japan VCCI Class B compliance statement...
  • Page 112 Other compliance and TCO Certified information of countries and regions This section provides other compliance information about Lenovo products. Certification-related information Product name: ThinkCentre M75n Machine types: • Fan models: 11BS, 11BT, 11BU, 11BV, 11G4, 11G5, 11G6, and 11G7 • Fanless models: 11BW, 11BX, 11GW, 11GX, 11G8, 11G9, 11GV, 11GY, 11C0, 11GB, 11HU, 11HV, 11HW,...
  • Page 113 Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations. To help in this endeavor, Lenovo has preset a default power plan. To change the power plan, see “Set the power plan” on page 17.
  • Page 114 ThinkCentre M75n User Guide...

  • Page 115: Appendix E. Notices And Trademarks

    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 116 Actual results may vary. Users of this document should verify the applicable data for their specific environment. This document is copyrighted by Lenovo and is not covered by any open source license, including any Linux agreement(s) which may accompany software included with this product. Lenovo may update this document at any time without notice.

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