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Lenovo ThinkCentre M90a User Manual
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Lenovo ThinkCentre M90a User Manual

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Summary of Contents for Lenovo ThinkCentre M90a

  • Page 1 M70a and M90a 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

    ....Use Lenovo Vantage ... . . Enable or disable the smart power-on feature . . .
  • Page 4 Restore your files from a backup ..Call Lenovo ....Reset your computer ...

  • 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 M70a and M90a User Guide...

  • Page 7: Chapter 1. Meet Your Computer

    • Breathing (blinking slowly): The computer is in sleep or modern standby mode. 7. Storage drive activity indicator This indicator is on when the storage drive is in use. 8. Microphone mute/unmute This indicator is on when the microphones are muted. indicator* © Copyright Lenovo 2020...
  • Page 8 Gen 1) • 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 12. USB 3.2 connector Gen 2 storage device, or USB printer.

  • Page 9: Rear

    Rear Lock your computer to a desk, table, or other fixtures through a Kensington-style 1. Security-lock slot cable lock. Press the button to access the covered connectors and cables. 2. Cable cover eject button Note: For easy access, do not cover the button with any external parts. 3.

  • Page 10: Locating Connectors On System Board

    Locating connectors on system board Figure 1. M70a system board Integrated camera and microphone module connector LCD LVDS connector Microprocessor socket Serial (COM1) connector Touch board connector Memory slots M.2 solid-state drive slot M.2 Wi-Fi card slot Optical drive connector Clear CMOS (Complementary Metal Oxide Semiconductor) / Recovery jumper ME disable header...
  • Page 11 Figure 2. M90a system board LCD backlight connector LCD LVDS connector Integrated camera and microphone module connector Microprocessor socket Serial (COM1) connector Memory slots M.2 solid-state drive slot M.2 Wi-Fi card slot Coin-cell battery Touch board connector Internal speaker connector Optical drive connector E-Privacy connector Cover presence switch connector (intrusion switch...

  • Page 12: Features And Specifications

    Features and specifications • M70a: – Width: 490.1 mm (19.3 inches) – Height: 312.3 mm (12.3 inches) – Depth: 55.6 mm (2.2 inches) • M90a: – E-Privacy models: Dimensions (without any – Width: 541 mm(21.3 inches) computer stand) – Height: 338.5 mm (13.3 inches) –...

  • Page 13: Statement On Usb Transfer Rate

    • Color display with White Light Emitting Diode (WLED) technology • Color display with Full High Definition (FHD) technology • Display size: – M70a: 546.1 mm (21.5 inches) – M90a: 604.5 mm (23.8 inches) Video features • Display resolution: 1920 x 1080 pixels •...
  • Page 14 M70a and M90a User Guide...

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

    Note: For information about installing the computer stand, refer to the setup guide that comes with your computer. Full-function monitor stand • Tilt the screen forward and back. • Adjust the height of the screen. UltraFlex IV Stand • Tilt the screen forward and back. © Copyright Lenovo 2020...

  • Page 16: Get Started With Windows 10

    Get started with Windows 10 Learn the basics of Windows 10 and start working with it right away. For more information about Windows 10, see the Windows help information. Windows account A user account is required to use the Windows operating system. It can either be a Windows user account or a Microsoft account.

  • Page 17: Windows User Interface

    Windows user interface Change account settings, lock the computer, or sign out from the current account. 1. Account Open the Documents folder, a default folder to save your received files. 2. Documents Open the Pictures folder, a default folder to save your received pictures. 3.

  • Page 18: 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 19: Use Night Light

    Use Night light Blue light is the high-energy visible light in the light spectrum. Excessive exposure to blue light might damage your vision. Night light is a feature that reduces the blue light emitted by computer displays. When the night light is on, your computer display shows warmer colors that help you reduce eye strain.
  • Page 20 Tap and hold Open a shortcut menu. Slide Scroll through items, such as lists, pages, and photos. Drag an item to the location you want Move an object. Move two fingers closer together Zoom out. M70a and M90a User Guide...
  • Page 21 Move two fingers farther apart Zoom in. Swipe in from the right edge Open the action center to see your notifications and quick actions. Swipe in from the left edge View all your open windows in task view. • Swipe downwards shortly from the top edge (for full-screened app or when your computer is in the tablet mode) Show a hidden title bar.

  • Page 22: Use Multimedia

    Tips • Turn off the computer before cleaning the multi-touch screen. • Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the multi-touch screen. Do not apply solvents to the cloth. •...
  • Page 23 Connect to a wireless display ® To use a wireless display, ensure that both your computer and the external display support the Miracast feature. • Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add Bluetooth or other device.
  • Page 24 M70a and M90a User Guide...

  • Page 25: Chapter 3. Explore Your Computer

    Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices. b. Turn on the Bluetooth switch. 2. Click Add Bluetooth or other device ➙ Bluetooth. 3. Select a Bluetooth device, and then follow the on-screen instructions. © Copyright Lenovo 2020...

  • Page 26: Use The Optical Drive (For Selected Models)

    Your Bluetooth device and computer will automatically connect the next time if the two devices are in range of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and communication. Use the optical drive (for selected models) If your computer has an optical drive, read the following information.

  • Page 27: Purchase Accessories

    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. To shop at Lenovo, go to https://www.lenovo.com/accessories...
  • Page 28 M70a and M90a User Guide...

  • Page 29: 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 30: Use Face Authentication (For Selected Models)

    • 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 31: Use Software Security Solutions

    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 32: Erase All Storage Drive Data

    Erase all storage drive data It is recommended that you erase all storage drive data before recycling a storage drive or the computer. To erase all storage drive data: 1. Set a hard disk password for the storage drive you will recycle. See “Use passwords” on page 23. 2.
  • Page 33 • Read Only: You cannot copy data from the computer to the USB storage devices. However, you can access or modify data on the USB storage devices. • No Access: You cannot access the USB storage devices from the computer. To configure the Smart USB Protection function: 1.
  • Page 34 M70a and M90a User Guide...

  • Page 35: Chapter 5. Uefi Bios

    Change the display language of UEFI BIOS UEFI BIOS supports three display languages: English, French, 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 36: Set The System Date And Time

    Set the system date and time 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 2. Select Main ➙ System Time & Date and press Enter. 3. Set the system date and time as desired. 4.

  • Page 37: Enable Or Disable The Automatic Power-On Feature

    4. Press F10 or Fn+F10 to save the changes and exit. Enable or disable the ErP LPS compliance mode 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 You can enable the ErP LPS compliance mode to reduce the consumption of electricity when the computer is off or in sleep mode.

  • Page 38: Change The Ice Performance Mode

    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 To change the BIOS settings: 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.

  • Page 39: Recover From A Bios Update Failure

    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 40: Clear Cmos

    Note: Depending on the computer model, the recovery process will take two to three minutes. 8. Disconnect all power cords from electrical outlets. 9. Move the jumper back to the standard position. 10. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and the monitor to electrical outlets.

  • Page 41: Chapter 6. Troubleshooting, Diagnostics, And Recovery

    3. See Chapter 6 “Troubleshooting, diagnostics, and recovery” on page 35 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 79. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms.

  • Page 42: Startup Problems

    Startup problems Problem Solution • Ensure that the power cord is correctly connected to the rear of the computer and to a working electrical outlet. • If the computer has a secondary power switch on the rear of the The computer does not start up when you computer, ensure that it is switched on.

  • Page 43: Screen Problems

    Screen problems Problem Solution • The computer voltage matches the voltage available at the electrical outlet for your country or region. • Press a key to exit the screen saver. • Press the power button to wake the computer from sleep or The screen goes blank while the computer is hibernation mode.

  • Page 44: 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 45 Problem Solution • Connect the cable from the Ethernet connector to the RJ45 connector of the hub. • Enable the Ethernet LAN feature in UEFI BIOS. • Enable the Ethernet LAN adapter. 1. Go to Control Panel and view by large icons or small icons. 2.
  • Page 46 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 47: Performance Problems

    Performance problems Problem Solution Note: Depending on the volume of the storage drives and amount of data stored on the storage drives, the disk-defragmentation process might take up to several hours. 1. Close any open programs and windows. 2. Open the Start menu. Excessive fragmented files exist on the 3.

  • Page 48: 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 49: Serial Connector Problems

    Problem Solution • Disable any background programs, such as AntiVirus or Desktop The playback is slow or choppy. Themes. • Ensure that video resolution is less than 1152 x 864 pixels. • Ensure that the disc is in the drive with the shiny side of the disc facing down.

  • Page 50: Software Problems

    Use diagnostic solutions to test hardware components and report operating-system-controlled settings that interfere with the correct operation of your computer. 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.

  • Page 51: 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 52: 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 53: 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 54: Replace A Cru

    Replace a CRU Follow the replacement procedure to replace a CRU. Computer stand Prerequisite Before you start, read Appendix A “Important safety information” on page 83 and print the following instructions. Replacement procedure 1. Turn off the computer and remove all connected devices and cables. 2.
  • Page 55 Figure 4. Removing the full-function monitor stand base Figure 5. Installing the full-function monitor stand base Chapter 7 CRU replacement...
  • Page 56 Figure 6. Installing the full-function monitor stand • UltraFlex IV Stand. Figure 7. Removing the UltraFlex IV Stand M70a and M90a User Guide...
  • Page 57 Figure 8. Removing the UltraFlex IV Stand base Figure 9. Installing the UltraFlex IV Stand base Chapter 7 CRU replacement...

  • Page 58: Rear Cover

    Figure 10. Installing the UltraFlex IV Stand 5. Place the computer in an upright position. 6. Reconnect the ac power adapter and all disconnected cables to the computer. Rear cover Prerequisite Before you start, read Appendix A “Important safety information” on page 83 and print the following instructions.

  • Page 59: Optical Drive

    Figure 11. Removing the rear cover Figure 12. Installing the rear cover 7. Reinstall the computer stand. See “Computer stand” on page 48. 8. Place the computer in an upright position. 9. If a locking device is available, use it to lock the computer. 10.
  • Page 60 3. Disconnect the power and signal cable from the optical drive. 4. Depending on your computer model, refer to one of the following to replace the optical drive. • M70a Figure 13. Removing the optical drive Figure 14. Removing the optical drive bracket Figure 15.
  • Page 61 Figure 16. Installing the optical drive • M90a Figure 17. Removing the optical drive Figure 18. Removing the optical drive bracket Chapter 7 CRU replacement...

  • Page 62: Optical Drive Holder

    Figure 19. Installing the optical drive bracket Figure 20. Installing the optical drive 5. Reconnect the power and signal cable to the optical drive. 6. Reinstall the removed parts. 7. Place the computer in an upright position. 8. If a locking device is available, use it to lock the computer. 9.
  • Page 63 Figure 21. Removing the optical drive holder Figure 22. Installing the optical drive holder • M90a Chapter 7 CRU replacement...

  • Page 64: System Board Shield

    Figure 23. Removing the optical drive holder Figure 24. Installing the optical drive holder 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. System board shield Prerequisite Before you start, read Appendix A “Important safety information”...
  • Page 65 2. Remove the rear cover. See “Rear cover” on page 52. 3. Remove the optical drive. See “Optical drive” on page 53. 4. Remove the optical drive holder. See “Optical drive holder” on page 56. 5. Depending on your computer model, refer to one of the following to replace the system board shield. •...
  • Page 66 Figure 27. Installing the system board shield screw • M90a Figure 28. Removing the system board shield Figure 29. Installing the system board shield M70a and M90a User Guide...

  • Page 67: Vesa Mount Bracket Cover

    6. Reinstall the removed parts. 7. Place the computer in an upright position. 8. If a locking device is available, use it to lock the computer. 9. Reconnect the external cables and power cords to the corresponding connectors on the computer. VESA mount bracket cover Prerequisite Before you start, read Appendix A “Important safety information”...
  • Page 68 Figure 31. Removing the VESA mount bracket cover Figure 32. Installing the VESA mount bracket cover • M90a Figure 33. Opening the cable cover M70a and M90a User Guide...

  • Page 69: Vesa Mount Bracket

    Figure 34. Removing the VESA mount bracket cover Figure 35. Installing the VESA mount bracket cover 7. Reinstall the removed parts. 8. Place the computer in an upright position. 9. If a locking device is available, use it to lock the computer. 10.
  • Page 70 3. Remove the optical drive. See “Optical drive” on page 53. 4. Remove the optical drive holder. See “Optical drive holder” on page 56. 5. Remove the system board shield. See “System board shield” on page 58. 6. Remove the VESA mount bracket cover. See “VESA mount bracket cover” on page 61. 7.

  • Page 71: Storage Drive And Storage Drive Bracket

    Figure 38. Removing the VESA mount bracket Figure 39. Installing the VESA mount bracket 8. Reinstall the removed parts. 9. Place the computer in an upright position. 10. If a locking device is available, use it to lock the computer. 11.
  • Page 72 3. Remove the optical drive. See “Optical drive” on page 53. 4. Remove the optical drive holder. See “Optical drive holder” on page 56. 5. Remove the system board shield. See “System board shield” on page 58. 6. Depending on your computer model, refer to one of the following to replace the storage drive and the storage drive bracket.
  • Page 73 Figure 42. Disconnecting the storage drive cable Figure 43. Connecting the storage drive cable Figure 44. Installing the storage drive to the bracket Chapter 7 CRU replacement...
  • Page 74 Figure 45. Installing the storage drive and the bracket • M90a Figure 46. Removing the storage drive and the bracket Figure 47. Removing the storage drive from the bracket M70a and M90a User Guide...
  • Page 75 Figure 48. Disconnecting the storage drive cable Figure 49. Connecting the storage drive cable Figure 50. Installing the storage drive to the bracket Chapter 7 CRU replacement...

  • Page 76: M.2 Solid-State Drive

    Figure 51. Installing the storage drive and the bracket 7. Reinstall the removed parts. 8. Place the computer in an upright position. 9. If a locking device is available, use it to lock the computer. 10. Reconnect the external cables and power cords to the corresponding connectors on the computer. M.2 solid-state drive Prerequisite Before you start, read Appendix A “Important safety information”...
  • Page 77 Figure 52. Removing the M.2 solid-state drive Figure 53. Installing the M.2 solid-state drive – For M.2 solid-state drive (2242) models Chapter 7 CRU replacement...
  • Page 78 Figure 54. Removing the M.2 solid-state drive Figure 55. Installing the M.2 solid-state drive • M90a – For M.2 solid-state drive (2280) models M70a and M90a User Guide...
  • Page 79 Figure 56. Removing the M.2 solid-state drive Figure 57. Installing the M.2 solid-state drive – For M.2 solid-state drive (2242) models Chapter 7 CRU replacement...

  • Page 80: Memory Module

    Figure 58. Removing the M.2 solid-state drive Figure 59. Installing the M.2 solid-state drive 9. Reinstall the removed parts. 10. Place the computer in an upright position. 11. If a locking device is available, use it to lock the computer. 12.
  • Page 81 Replacement procedure Ensure that you follow the installation order for memory modules shown in the following figure. Figure 60. M70a memory module slots Chapter 7 CRU replacement...
  • Page 82 Figure 61. M90a memory module slots 1. Remove the computer stand. See “Computer stand” on page 48. 2. Remove the rear cover. See “Rear cover” on page 52. 3. Remove the optical drive. See “Optical drive” on page 53. 4. Remove the optical drive holder. See “Optical drive holder” on page 56. 5.
  • Page 83 Figure 62. Removing a memory module Figure 63. Installing a memory module • M90a Chapter 7 CRU replacement...
  • Page 84 Figure 64. Removing a memory module Figure 65. Installing a memory module 9. Reinstall the removed parts. 10. Place the computer in an upright position. 11. If a locking device is available, use it to lock the computer. 12. Reconnect the external cables and power cords to the corresponding connectors on the computer. M70a and M90a User Guide...

  • Page 85: 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 86: 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 Prepare the following before you contact Lenovo: 1. Record the problem symptoms and details: •...

  • Page 87: 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 88 M70a and M90a User Guide...

  • Page 89: 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 90 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 91 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 92 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 93 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 94 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 95 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 96 DANGER Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices. To connect: To disconnect: 1. Turn everything OFF. 1. Turn everything OFF. 2. First, attach all cables to devices. 2.
  • Page 97 Liquid crystal display (LCD) notice DANGER To avoid shock hazards: • Do not remove the covers. • Do not operate this product unless the stand is attached. • Do not connect or disconnect this product during an electrical storm. • The power cord plug must be connected to a properly wired and grounded power outlet. •...
  • Page 98 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 99 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 100 Static electricity prevention Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitive parts can damage the part. When you unpack an option or CRU, do not open the static-protective package containing the part until the instructions direct you to install it. When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage: •...
  • Page 101 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 102 spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can use a camera blower with a brush or use cool air from a hair dryer. Clean the computer screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the performance of your computer screen.

  • Page 103: 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 104 keyboard with all the standard keys. You can select keys using the mouse or another pointing device, or you can tap to select the keys if your computer supports multi-touch screen. • High Contrast High Contrast is a feature that heightens the color contrast of some text and images on your screen. As a result, those items are more distinct and easier to identify.
  • Page 105 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 106 Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to 30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the brightness control keys to adjust display brightness.

  • Page 107: 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 108 M70a and M90a User Guide...

  • Page 109: Appendix D. Compliance Information

    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. This product has been tested and found to comply with the limits for Class B equipment according to European Standards harmonized in the Directives in compliance.
  • Page 110 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 111 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 112 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 113 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 114 Ukraine RoHS India RoHS RoHS compliant as per E-Waste (Management) Rules. Mainland China RoHS M70a and M90a User Guide...
  • Page 115 • 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 116 EU ErP (EcoDesign) Directive (2009/125/EC) - external power adapters (Regulation (EU) 2019/1782) Lenovo products are designed to work with a range of compatible power adapters. Access https:// www.lenovo.com/us/en/compliance/eu-doc to view the compatible power adapters.
  • Page 117 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 118 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 19.

  • Page 119: 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 120 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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