M90s User Guide
Read this first Before using this documentation and the product it supports, ensure that you read and understand the following: • Appendix A “Important safety information” on page 73 • Safety and Warranty Guide • Setup Guide First Edition (May 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. GS35F-05925.
Contents About this documentation . . . . . . . . iii Use Smart USB Protection. . . . . . . . . Chapter 1. Meet your computer . . . . . 1 Chapter 5. UEFI BIOS . . . . . . . . . 23 Front . . . . . . . . . . . . . Rear . . . . . . . . . . . . . Features and specifications . . . . Statement on USB transfer rate . What is UEFI BIOS. . . . . . . . . . . . . Enter the BIOS menu. . . . . . . . . . . . Navigate in the BIOS interface . . . . . . . . Change the display language of UEFI BIOS . . .
Chapter 7. CRU replacement . . . . . 41 What are CRUs . . . . . . . . . . Replace a CRU . . . . . . . . . . Vertical stand . . . . . . . . . Computer cover . . . . . . . . Front bezel . . . . . . . . . . Optical drive . . . . . . . . . Drive bay assembly . . . . . . Storage drive . . . . . . . . . M.2 solid-state drive and heat sink M.2 solid-state drive bracket . . . Memory module . . . . . . . . PCI-Express connector cable . . PCI-Express card . . . . . . . Coin-cell battery . . . . . . . .
About this documentation • Illustrations in this documentation might look different from your product. • Depending on the model, some optional accessories, features, and software programs might not be available on your computer. • 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.
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Chapter 1. Meet your computer Front 1. Optical drive eject button* Eject the optical drive tray. 2. Optical drive activity indicator* This indicator is on when the optical drive is in use. Supported cards: • Secure Digital (SD) card • Secure Digital eXtended-Capacity (SDXC) UHS-1 card 3. SD-card slot* • Secure Digital High-Capacity (SDHC) UHS-1 card Note: Your computer does not support the content protection for recordable media (CPRM) feature for the SD card.
Press to turn on the computer. To turn off the computer, open the Start menu, click Shut down. Power, and then select The indicator in the power button shows the system status of your computer. 4. Power button • On: The computer is on. • Off: The computer is off or in hibernation mode. • Blinking: The computer is in sleep mode. • Breathing: The computer is in modern standby mode. Note: Modern standby mode is supported on some models. 5.
Rear Send audio signals from the computer to external devices, such as powered stereo speakers, headphones, or multimedia keyboards. To connect a stereo system or other external recording device, connect a cable between the audio line-in connector of the device and the audio line-out connector of the computer. 1.
9. Ethernet connector Connect to a local area network (LAN). When the green indicator is on, the computer is connected to a LAN. When the yellow indicator blinks, data is being transmitted. 10. Padlock loop Lock the computer cover through a padlock. 11. E-lock slots Lock the computer cover through an E-lock. 12. PCI-Express card area Install PCI-Express cards into this area to improve the operating performance of the computer. Depending on the computer model, the connectors in this area vary. 13.
Features and specifications • Width: 92.5 mm (3.6 inches) Dimensions • Height: 339.5 mm (13.4 inches) • Depth: 297.7 mm (11.7 inches) Weight (without the package) Maximum configuration as shipped: 5.3 kg (11.7 lb) 1. Right-click the Start button to open the Start context menu. Hardware configuration 2. Click Device Manager. Type the administrator password or provide confirmation if prompted.
• Card reader* • Memory slots • M.
Chapter 2. Get started with your computer 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. Windows user account When you start Windows for the first time, you are prompted to create a Windows user account.
Windows user interface 1. Account Change account settings, lock the computer, or sign out from the current account. 2. Documents Open the Documents folder, a default folder to save your received files. 3. Pictures Open the Pictures folder, a default folder to save your received pictures. 4. Settings Launch Settings. 5. Power Shut down, restart, or put the computer into sleep mode. 6. Start button Open the Start menu. 7.
Access Control Panel • Open the Start menu and click Windows System ➙ Control Panel. • Use Windows Search. Launch an app • Open the Start menu and select the app you want to launch. • Use Windows Search. Connect to networks Your computer helps you connect to the world through a wired or wireless network. Connect to the wired Ethernet Connect your computer to a local network through the Ethernet connector on your computer with an Ethernet cable.
• 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. Use multimedia Use your computer for business or entertainment with the devices (such as a camera, a monitor, or speakers). Use audio To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector.
• Show only on 2: Display the video output only on an external display. If you show programs using DirectDraw or Direct3D® in full-screen mode, only the main display shows the video output. Change display settings 1. Right-click a blank area on the desktop and select Display settings. 2. Select the display that you want to configure. 3. Change display settings of your preference. You can change the settings for both the computer display and the external display.
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Chapter 3. Explore your computer Manage power Use the information in this section to achieve the best balance between performance and power efficiency. Set power button behaviors You can define what the power button does according to your preference. For example, by pressing the power button, you can turn off the computer or put the computer to sleep or hibernation mode. To change what the power button does: 1. Go to Control Panel and view by large icons or small icons. 2.
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. Know the type of your optical drive 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager.
Use a smart cable clip (for selected models) Note: You can purchase a smart cable clip from Lenovo. Lock devices (such as the keyboard and the mouse) to your computer through a smart cable clip. 1. Insert the clip 1 into the cable-lock slot 4 . 2. Pull the cables you want to lock through the dents in the smart cable clip. 3. Press the clip 2 into the cable-lock slot 3 until it snaps into position.
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Chapter 4. Secure your computer and information Lock the computer 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. Padlock Locking the computer cover through a padlock prevents unauthorized access to the inside of your computer.
E-lock Your computer might have a security lock solution installed to protect the computer from unauthorized tampering of the internal components. Using the E-Lock, you can mechanically lock or unlock the computer cover. To enable or disable the E-Lock: 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 2. Select Security ➙ Electronic Lock to enable or disable the E-lock. 3. Press F10 or Fn+F10 to save the changes and exit.
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. Note: After you set a hard disk password, your data on the storage drive is protected even if the storage drive is removed from one computer and installed in another.
Log in with your fingerprint If the fingerprint reader indicator blinks in amber, the authentication is not successful. Maintain the fingerprint reader To ensure that the fingerprint reader works correctly, do not: • Scratch the surface of the reader with anything hard. • Use or touch the reader with a wet, dirty, wrinkled, or injured finger. Attention: If you always use your fingerprint to log in to the computer, you might forget your passwords. Write down your passwords, and keep them in a safe place.
2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 3. Select Security ➙ Hard Disk Password ➙ Security Erase HDD Data and press Enter. 4. Select the storage drive you will recycle and press Enter. 5. A message is displayed, prompting you to confirm the operation. Select Yes and press Enter. The erasing process begins. Note: During the erasing process, the power button and the keyboard are disabled. 6.
2. Select Security ➙ Smart USB Protection and press Enter. 3. Select the desired setting and press Enter. 4. Press F10 or Fn+F10 to save the changes and exit.
Chapter 5. UEFI BIOS This chapter provides information about configuring and updating UEFI BIOS, and clearing CMOS. What is UEFI BIOS Note: The operating system settings might override any similar settings in UEFI BIOS. UEFI BIOS is the first program that the computer runs when the computer is turned on. UEFI BIOS initializes the hardware components and loads the operating system and other programs. Your computer comes with a setup program with which you can change UEFI BIOS settings.
Change the display mode of UEFI BIOS You can use UEFI BIOS in the graphic mode or the text mode according to your needs. The keys on the keyboard used to perform various tasks are displayed at the bottom of the screen. In addition to the keyboard, you also can use the mouse to make selections. To change the display mode of UEFI BIOS: 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 2. Select Main ➙ Setup Mode Select and press Enter. 3. Set the display mode as desired.
If you want to change the startup device sequence permanently, select Enter Setup on Startup Device Menu and press Enter to enter the BIOS menu. Enable or disable the configuration change detection feature If you enable configuration change detection, when the POST detects configuration changes of some hardware devices (such as storage drives or memory modules), an error message will be displayed when you turn on the computer. To enable or disable the configuration change detection feature: 1.
To enable or disable the ErP LPS compliance mode: 1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1. 2. Select Power ➙ Enhanced Power Saving Mode and press Enter. 3. Depending on whether you select Enabled or Disabled, do one of the following: • If you select Enabled, press Enter. Then, select Power ➙ Automatic Power On and press Enter. Check whether the Wake on LAN feature is disabled automatically. If no, disable it. • If you select Disabled, press Enter.
2. From the main interface, select Security ➙ Secure Boot and press Enter. 3. Depending on the operating system to be installed, do one of the following: • To install the Windows 10 (64-bit) and most of Linux operating system, select Enabled for Secure Boot. • To install an operating system that does not support secure boot, select Disabled for Secure Boot. 4. Press F10 or Fn+F10 to save the changes and exit.
2. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the Clear CMOS /Recovery jumper. 3. Move the jumper from the standard position to the maintenance position. 4. Reconnect the power cords for the computer and the monitor to electrical outlets. 5. Turn on the computer and the monitor. When the computer beeps, wait for approximately 10 seconds. 6. Turn off the computer by holding the power button for approximately four seconds. 7.
Chapter 6. Troubleshooting, diagnostics, and recovery This chapter provides solutions to resolve computer problems. Use the basic procedure as a starting point for resolving computer problems. Basic procedure for resolving computer problems Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. 1. Check that: a. The cables for all connected devices are connected correctly and securely. b. All components have been reassembled correctly.
Startup problems Problem Solution • Ensure that the power cord is correctly connected to the rear of the computer and to a working electrical outlet. The computer does not start up when you press the power button. • If the computer has a secondary power switch on the rear of the computer, ensure that it is switched on. • The power indicator on the front of the computer is on. • The computer voltage matches the voltage available at the electrical outlet for your country or region.
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. • If your external speakers have a volume control, ensure that the volume is not set too low. • Click the volume icon in the Windows notification area on the taskbar. Check the speaker and volume settings.
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. Click Network and Sharing Center ➙ Change adapter settings. The computer cannot connect to an Ethernet LAN. 3. Right-click the Ethernet LAN adapter icon and click Enable. • Update or reinstall the Ethernet LAN driver.
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. The Bluetooth feature does not work. 4. Expand Network adapters to display all network devices.
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 storage drives. 3. Click Windows System ➙ File Explorer ➙ This PC. 4. Right-click your C drive and then click Properties. 5. Click the Tools tab. 6. Click Optimize.
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 the BIOS menu. – If the computer is installed with SATA storage drives, ensure that the SATA storage drive enablement module (one to five storage drives) is installed.
Problem Solution The playback is slow or choppy. • Disable any background programs, such as AntiVirus or Desktop Themes. • Ensure that video resolution is less than 1152 x 864 pixels. A message indicating invalid disc or no disc found is displayed. • Ensure that the disc is in the drive with the shiny side of the disc facing down. • Ensure that video resolution is less than 1152 x 864 pixels. • Ensure that the DVD or CD is inserted into an appropriate optical drive.
Software problems Problem Solution 1. Check whether the problem is caused by a program. a. Ensure that the software is compatible with the computer. Refer to the information supplied with the software for more information. b. Verify that other software works correctly on the computer. c. Verify that the software you are using works on another computer. Some programs do not work as expected. 2.
Use advanced options 1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery. 2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options. 3. Select a preferred option, and then follow the on-screen instructions. Windows automatic recovery Note: Ensure that your computer is connected to ac power during the recovery process. The Windows recovery environment on your computer operates independently from the Windows 10 operating system.
Update the device driver Attention: Reinstalling device drivers will change the current configuration of the computer. You should download the latest driver for a component when you notice poor performance from that component or when you added a component. This action might eliminate the driver as the potential cause of a problem. Download and install the latest driver by one of the following methods: • From Lenovo Vantage: Open Lenovo Vantage to check the available update packages.
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Chapter 7. CRU replacement What are CRUs Customer Replaceable Units (CRUs) are parts that can be upgraded or replaced by the customer. Lenovo computers contain the following types of CRUs: • Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by trained service technicians at an additional cost. • Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill level.
Optional-service CRUs • Coin-cell battery • E-lock* • Power supply assembly * for selected models Replace a CRU Follow the replacement procedure to replace a CRU. Vertical stand Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Replacement procedure 1. Remove any media from the drives and turn off all connected devices and the computer. 2.
4. Install the vertical stand. 5. Reconnect the power cord and all disconnected cables to the computer. Computer cover Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. Replacement procedure 1. Remove any media from the drives and turn off all connected devices and the computer. 2.
6. Remove the computer cover. 7. Install the computer cover. 8. Place the computer in an upright position. 9. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. Note: If a locking device is available, use it to lock the computer. Front bezel Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Replacement procedure 1. Remove the computer cover.
2. Remove the front bezel. 3. Install the front bezel. 4. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. Optical drive Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Chapter 7.
Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the front bezel. See “Front bezel” on page 44. 3. Disconnect the signal and power cable from the optical drive. 4. Remove the optical drive. 5. Remove the optical drive bracket.
6. Install the optical drive bracket. 7. Install the optical drive. 8. Connect the signal and power cable to the new optical drive. 9. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. Drive bay assembly Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the front bezel.
3. Remove the drive bay assembly. 4. Install the drive bay assembly. 5. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. Storage drive Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data.
• Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for frequent changes or replacement. • Before replacing the internal storage drive, make a backup copy of all the data that you want to keep. • Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get damaged. • Do not apply pressure to the internal storage drive. • Do not make the internal storage drive subject to physical shocks or vibration.
7. Install the 3.5-inch primary storage drive. 8. Install the 3.5-inch primary storage drive with the bracket. 9. Connect the signal cable and the power cable to the new 3.5-inch storage drive. 10. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. 2.5-inch primary storage drive 1. Remove the storage converter with the 2.5-inch primary storage drive. See 3.5-inch primary storage drive.
2. Remove the 2.5-inch primary storage drive from the storage converter. 3. Install the 2.5-inch primary storage drive to the storage converter. 4. Connect the signal cable and the power cable to the new 2.5-inch primary storage drive on the bottom of the drive bay assembly. 5. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. 2.5-inch secondary storage drive 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the front bezel.
5. Disconnect the signal cable and the power cable from the 2.5-inch secondary storage drive on the bottom of the drive bay assembly. 6. Remove the 2.5-inch secondary storage drive with the bracket. 7. Remove the 2.5-inch secondary storage drive.
8. Install the 2.5-inch secondary storage drive. 9. Install the 2.5-inch secondary storage drive with the bracket. 10. Connect the signal cable and the power cable to the new 2.5-inch secondary storage drive on the bottom of the drive bay assembly. 11. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. M.
• To replace the Intel Optane memory, go to https://support.lenovo.com/docs/tg_ssd. • The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the internal storage drive, observe the following guidelines: – Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for frequent changes or replacement.
b. Remove the M.2 solid-state drive. c. Install the M.2 solid-state drive. d. Insert the stopper. • For computers with the heat sink for the M.2 solid-state drive, do one of the following depending on the computer model: – Type 1 Chapter 7.
a. Pull out the stopper. b. Remove the heat sink with the bracket. c. Remove the heat sink.
d. Remove the M.2 solid-state drive. e. Remove the film that covers the thermal pad, if any. Then, install the M.2 solid-state drive. f. Remove the film that covers the thermal pad, if any. Then, install the heat sink. g. Install the heat sink with the bracket. Chapter 7.
h. Insert the stopper. – Type 2 a. Pull out the stopper. b. Remove the heat sink with the M.2 solid-state drive.
c. Remove the M.2 solid-state drive. d. Remove the film that covers the thermal pad, if any. Then, install the M.2 solid-state drive. e. Install the heat sink with the M.2 solid-state drive. f. Insert the stopper. 5. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. M.2 solid-state drive bracket Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Chapter 7.
Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Remove the M.2 solid-state drive and heat sink (if any). See “M.2 solid-state drive and heat sink” on page 53. 5. Remove the M.2 solid-state drive bracket. 6. Install the M.2 solid-state drive bracket. 7. Reinstall all the removed parts.
Ensure that you follow the installation order for memory modules shown in the following illustration. Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Remove a memory module. Chapter 7.
5. Install 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. 6. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. PCI-Express connector cable Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Replacement procedure 1. Remove the computer cover.
4. Install the PCI-Express connector cable. 5. Connect the new cable to the system board. 6. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. PCI-Express card Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2. Remove the PCI-Express card. Chapter 7.
3. Remove the PCI-Express connector cable, if any. See “PCI-Express connector cable” on page 62. Then, install the PCI-Express card. 4. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. Coin-cell battery Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions.
2. Remove the coin-cell battery. 3. Install the coin-cell battery. 4. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. 5. Reset the system date and time in the UEFI BIOS menu. See “Set the system date and time” on page 24. To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” in the Safety and Warranty Guide.
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek medical care immediately.Never remove the cover on a power supply or any part that has the following label attached. 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. Replacement procedure 1.
6. Install the power supply assembly. 7. Connect the power supply assembly cable to the system board. 8. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer. E-lock Prerequisite Before you start, read Appendix A “Important safety information” on page 73 and print the following instructions. Note: To remove the screws, you need a special tool (T15 star wrench). Replacement procedure 1. Remove the computer cover. See “Computer cover” on page 43. 2.
4. Install the E-lock. 5. Connect the E-lock cable to the system board. 6. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the computer.
Chapter 8. Help and support Self-help resources Use the following self-help resources to learn more about the computer and troubleshoot problems. Resources How to access? Use Lenovo Vantage to: • Configure device settings. • Download and install UEFI BIOS, drivers and firmware updates. • Open the Start menu and click Lenovo Vantage. • Secure you computer from outside threats. • Use Windows Search. • Check the computer warranty status. • Access User Guide and helpful articles.
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: • What is the problem? Is it continuous or intermittent? • Any error message or error code? • What operating system are you using? Which version? • Which software applications were running at the time of the problem? • Can the problem be reproduced? If so, how? 2.
Services available during the warranty period • Problem determination - Trained personnel are available to assist you with determining if you have a hardware problem and deciding what action is necessary to fix the problem. • 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.
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Appendix A. Important safety information Safety notices This information can help you safely use your computer. Follow and retain all information included with your computer. The information in this document does not alter the terms of your purchase agreement or the Limited Warranty. For more information, see "Warranty Information" in the Safety and Warranty Guide that comes with your computer. Customer safety is important. Our products are developed to be safe and effective.
• Signs of overheating, smoke, sparks, or fire. • Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign substances on the battery. • A cracking, hissing, or popping sound, or strong odor that comes from the product. • Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or power adapter. • The computer product, power cord, or power adapter has been exposed to water.
Sharp Edges: When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury, seek medical care immediately. Power cords and power adapters DANGER Use only the power cords and power adapters supplied by the product manufacturer. The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly. Never wrap a power cord around a power adapter or other object.
For units intended to be operated at 115 volts: Use a UL-listed and CSA-certified cord set consisting of a minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length and a parallel blade, grounding-type attachment plug rated 10 amperes, 125 volts. For units intended to be operated at 230 volts (U.S.
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.
Lithium coin-cell battery notice DANGER Danger of explosion if battery is incorrectly replaced. 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.
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. • Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable operation.
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. First, remove power cords from outlets. 3. Attach signal cables to connectors. 3. Remove signal cables from connectors. 4. Attach power cords to outlets. 4. Remove all cables from devices. 5. Turn devices ON.
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. • Any equipment to which this product will be attached must also be connected to properly wired and grounded power outlets.
Limits) or a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 503322 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 Limitation Values).
Hazardous energy statement DANGER Disconnect all power cords from electrical outlets before removing the computer cover or any part that has the above label attached. DO NOT disassemble components that have the above label attached. There are no serviceable parts inside these components. Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present inside any component that has this label attached.
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: • Limit your movement.
Basic maintenance tips Here are some basic points about keeping your computer functioning properly: • Keep the computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface. • Do not cover any of air vents. These air vents provide airflow to keep the computer from overheating.
Clean the computer surface: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid applying liquids directly to the surface. Clean the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid spraying cleaner directly onto the keyboard.
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. You also can get the most up-to-date accessibility information from the following Web site: https://www.
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. • Personalized keyboard Adjust keyboard settings to make your keyboard easier to use.
– Change the size of all the items on your screen. 1. Right-click an empty area of the desktop and then click Display settings ➙ Display. 2. Change the item size by following the on-screen instructions. For some applications, your configuration might not take effect until you sign out and then sign in again. – Change the size of the items on a Web page. Press and hold Ctrl, and then press the plus-sign key (+) to enlarge or the minus-sign key (–) to reduce the text size.
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. Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position.
Appendix C. Supplemental information about the Ubuntu operating system In limited countries or regions, Lenovo offers customers an option to order computers with the preinstalled Ubuntu® operating system. If the Ubuntu operating system is available on your computer, read the following information before you use the computer. Ignore any information related to Windows-based programs, utilities, and Lenovo preinstalled applications in this documentation.
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Appendix D. Compliance and TCO Certified information This chapter provides regulatory, environmental, RoHS, and ENERGY STAR information about Lenovo products. Radio frequency compliance statements Computer models equipped with wireless communications comply with the radio frequency and safety standards of any country or region in which it has been approved for wireless use.
Mexico Advertencia: En Mexico la operación de este equipo está sujeta a las siguientes dos condiciones: (1) es posible que este equipo o dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada. Singapore Korea 무선설비 전파 혼신 (사용주파수 2400∼2483.5 , 5725∼5825 무선제품해당) 해당 무선설비가 전파혼신 가능성이 있으므로 인명안전과 관련된 서비스는 할 수 없음 SAR 정보 본 장치는 전파 노출에 대한 가이드라인을 충족합니다. 본 장치는 무선 송수신기 입니다.
each geography. This label is applied to various products to indicate that the product is not to be thrown away, but rather put in the established collection systems for reclaiming these end of life products.
Brazil recycling information Declarações de Reciclagem no Brasil Descarte de um Produto Lenovo Fora de Uso Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum, mas enviados à pontos de coleta, autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas especializadas no manuseio de resíduos industriais, devidamente certificadas pelos orgãos ambientais, de acordo com a legislação local.
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. You also can refer to the instructions provided in the user guide for your product.
Ukraine RoHS India RoHS RoHS compliant as per E-Waste (Management) Rules.
Taiwan RoHS Electromagnetic emission notices Federal Communications Commission (FCC) Supplier’s Declaration of Conformity The following information refers to ThinkCentre M90s, machine types: 11D1, 11D2, 11D6, and 11D7. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful Appendix D.
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
German Class B compliance statement Hinweis zur Einhaltung der Klasse B zur elektromagnetischen Verträglichkeit Dieses Produkt entspricht den Schutzanforderungen der EU-Richtlinie zur elektromagnetischen Verträglichkeit Angleichung der Rechtsvorschriften über die elektromagnetische Verträglichkeit in den EUMitgliedsstaaten und hält die Grenzwerte der Klasse B der Norm gemäß Richtlinie. Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben.
The latest compliance information is available at: https://www.lenovo.com/us/en/compliance TCO Certified Selected models are TCO Certified and bear the TCO Certified logo. Note: TCO Certified is an international third-party sustainability certification for IT products. For details, go to https://www.lenovo.com/us/en/compliance/tco.
ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy aimed at saving money and protecting the environment through energy efficient products and practices. Lenovo is proud to offer products with the ENERGY STAR certified designation. Lenovo computers, if carry an ENERGY STAR mark, have been designed and tested to conform to the ENERGY STAR program requirements for computers as prescribed by the U.S. Environmental Protection Agency.
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Appendix E. Notices and trademarks Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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 performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary.
