About this documentation • This guide applies to the Lenovo product models listed below. Illustrations in this guide may look slightly different from your product model. Model name Machine types (MT) ThinkCentre M70s Gen 5 12U2, 12U3, 12U7, 12U8 ThinkCentre M90s Gen 5 12V3, 12V4, 12V7, 12V8 •...
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Statement on USB transfer rate Depending on many factors such as the processing capability of the host and peripheral devices, file attributes, and other factors related to system configuration and operating environments, the actual transfer rate using the various USB connectors on this device will vary and will be slower than the data rate listed in the connector name or below for each corresponding device.
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• On: The computer is starting up or working. • Off: The computer is off or in hibernation mode. • Blinking: The computer is in sleep mode. Headset connector The headset connector is compatible with: • Headphones or earphones with a 3.5 mm (0.14 inch), TRS (3-pole) plug •...
Specifications Specification Description • Width: 92.5 mm (3.6 inches) Dimensions • Height: 339.5 mm (13.4 inches) • Depth: 297.7 mm (11.7 inches) Weight (without packaging) Maximum configuration as shipped: 5.3 kg (11.7 lb) Type Device Manager in the Windows search box and then press Enter. Type the Hardware configuration administrator password or provide confirmation, if prompted.
• Connect to an external display: up to 3840 x 2160 pixels, 60 Hz • Connect to USB-C accessories to help expand your computer functionality. To purchase USB-C accessories, go to https://www.lenovo.com/accessories • USB-C connector (USB 5Gbps) • USB-C connector (USB 10Gbps)
Install or remove a disc 1. With the computer on, press the eject button on the optical drive. The tray slides out of the drive. 2. Insert a disc into the tray or remove a disc from the tray, and then push the tray back into the drive. Note: If the tray does not slide out of the drive when you press the eject button, turn off the computer.
Notes: If the Bluetooth connection failed, do the following: 1. Type Device Manager in the Windows search box and then press Enter. 2. Locate the Bluetooth adapter. Right-click and select Update driver. 3. Select Search automatically for drivers, and then follow the on-screen instructions. Swift pair This topic helps you connect to a Bluetooth device by swift pair.
This computer offers a wealth of security measures to protect both the device and data safety. Lock the computer Note: 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.
Security lock Lock your computer to a desk, table, or other fixtures through a security lock. 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.
• Antivirus programs Lenovo preinstalls a full-version antivirus software on selected models of computer. It helps defend the computer against viruses, safeguard your identity, and keep your personal information secured. • Absolute Persistence Absolute Persistence technology is embedded in firmware.
Note: The Lenovo BIOS Simulator Center makes periodic updates of the settings. The UEFI BIOS simulator interface and description of settings might be different from that on your actual user interface.
If the latest UEFI BIOS update package is available, follow the on-screen instructions to download and install the package. From the Lenovo Support Web site Follow the instructions to update the UEFI BIOS from the Lenovo Support Web site. Step 1. Go to and select the entry for your computer.
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.
• Think dust shield* • Thumb screws • Vertical stand* Optional-service CRUs • E-lock* • Power supply assembly * for selected models Vertical stand Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1.
Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, do the following: 1. Remove any media from the drives and turn off all connected devices and the computer. 2.
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Replacement procedure M70s Gen 5 M90s Gen 5 User Guide...
Front bezel Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order, if any: • “Computer cover” on page 18 • “Optical drive” on page 19 M70s Gen 5 M90s Gen 5 User Guide...
Replacement procedure Drive bay assembly Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove these parts in order: • “Computer cover” on page 18 • “Optical drive” on page 19 • “Front bezel” on page 22 Chapter 4 CRU replacement...
Replacement procedure Hard disk drive Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Attention: 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: •...
• Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage drive on a soft material, such as cloth, to absorb physical shocks. For access, do the following: 1. Remove these parts in order: •...
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The heat sink might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. Attention: 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: •...
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• 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 – Type 2 Chapter 4 CRU replacement...
– Type 3 Note: Remove the film that covers the thermal pad (if any) when installing the M.2 solid-state drive. M.2 solid-state drive bracket Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove these parts in order: •...
• “Front bezel” on page 22 • “Drive bay assembly” on page 23 • “M.2 solid-state drive” on page 25 Replacement procedure Memory module Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Ensure that you follow the installation order for memory modules shown in the following illustration. •...
For access, remove these parts in order: • “Computer cover” on page 18 • “Optical drive” on page 19 • “Front bezel” on page 22 • “Drive bay assembly” on page 23 Replacement procedure 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.
Removal steps PCI-Express card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the followings: 1. Remove the computer cover. See “Computer cover” on page 18. 2. Disconnect the PCI-Express cables from the system board if any. Replacement procedure Note: Do not attempt to install any PCI-Express cards other than graphics card to the PCI-Express slot next to the microprocessor.
• M70s Gen 5 • M90s Gen 5 Power supply assembly Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. M70s Gen 5 M90s Gen 5 User Guide...
Although there are no moving parts in the computer after the power cord has been disconnected, the following warnings are required for your safety. Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek medical care immediately.
2. Disconnect the E-lock cable from the system board. Note: To remove the screws, you need a special tool (T15 star wrench). Removal steps Air deflector Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
• Serial number and machine type label of your computer (shown as below illustration) Diagnose and troubleshoot your computer This section provides introduction to a set of diagnostics and troubleshooting tools at Lenovo Support Web site and the Vantage app. They can help you diagnose common software and hardware issues.
Lenovo Service Bridge. Lenovo Service Bridge helps to connect your computer with Lenovo diagnosing tools. • Lenovo Support Web site makes periodic updates of the sections to keep improving your experience with your computer. The Web site interface and descriptions of sections might be different from that on your actual interface.
Refer to the instructions in Popular Topics: https://support.lenovo.com/ solutions/ht118590 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 needed information before you contact Lenovo.
Accessories Lenovo has a number of hardware accessories and upgrades to help expand the functionalities of your computer. Accessories include memory modules, storage devices, network cards, power adapters, keyboards, mice, and so on. To shop at Lenovo, go to https://www.lenovo.com/accessories...
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• Industry-standard connectors The industry-standard connectors on Lenovo products enable better compatibility with peripheral devices. • Operating systems The accessibility features of the operating systems can be configured to assist users in the following ways: – Vision features, such as text size and visual effect settings, make the screen contents easier to see.
Appendix A. Notice for USB connector name update The USB Implementers Forum published a revision of the guideline for USB connector names in September, 2022. Lenovo follows the revised guideline and updates USB connector names accordingly. You can refer to the table below for naming update details.
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.
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Furthermore, some measurements may have been estimated through extrapolation. 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.