Lenovo ThinkCentre M740t_ M747t_ M940t User Manual V2.0
Summary
This comprehensive guide is essential for new owners of the ThinkCentre desktop series. It provides detailed, step-by-step instructions on setup, connectivity, and advanced operations. The manual covers initial hardware installation, connecting external devices—such as graphics cards, Wi-Fi, and Bluetooth—proper usage precautions, and thorough troubleshooting to ensure safe and efficient performance. Designed for users who need expert guidance from unboxing to optimal daily operation.
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Think Centre M740t / M747t / M940t User Manual V2.0 (E-version)
Page Summary Contents For Lenovo ThinkCentre M740t_ M747t_ M940t User Manual V2.0
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Think Centre M740t / M747t / M940t User Manual V2.0 (E-version)
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(January 2022) © Copyright Lenovo 2022.
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Contents Important Information Before Use. . . . iii Graphics Card Setup. . . . . . . . . . . . . 11 Computer Usage Precautions . . . . . . . . . . iii Set Up NVIDIA Graphics Cards . . . . . . . 12 Op...
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Important Information Before Use This guide aims to help you use this product correctly. Before installing and using this product for the first time, please be sure to carefully read all the materials...
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• Use a mousepad designed for an optical mouse. Storage Media and Driver Usage Precautions 1. If your computer comes with an optical drive, do not touch the surface of the disc or the lens on the tray...
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Chapter 1. Install the Computer Notes: • Before installing the computer, check the packing list to make sure all the parts are provided. • Before installing and using the computer, carefully read this...
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Think Centre M740t / M747t / M940t User Manual V2.0 (E-version)
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Chapter 2. How to Use Your Computer Front View 1. Optical drive eject button* 2. Optical drive activity indicator* 3. SD card slot* 4. Power button 5. Storage drive activity indicator 6. Think Centre®...
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1. Optical drive eject button* 2. Optical drive activity indicator* 3. SD card slot* 4. Power button 5. Storage drive activity indicator 6. Think Centre® LED 7. Microphone connector 8. Headset connect...
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Rear View 1. Microphone connector 2. Display Port TM out connector 3. HDMITM out connector 4. VGA out connector 5. USB 2.0 connectors 6. USB 2.0 connector (with smart power on) 7. Audio line-out conne...
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1. Microphone connector 2. Display Port out connector 3. HDMI-out connector 4. VGA out connector 5. USB 3.2 connectors Gen 1 6. USB 2.0 connector (with smart power on) 7. USB 2.0 connector 8. Audio li...
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1. Microphone connector 2. Display Port out connector 3. HDMI-out connector 4. VGA out connector 5. USB 3.2 connectors Gen 1 6. USB 3.2 connector Gen 1 (with smart power-on) 7. Audio line-out connecto...
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Shut Down the Computer To prevent damage to hardware/software systems or loss of data, do not arbitrarily use the power button to shut down the computer. Instead, shut down the computer as follows. 1....
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In an open space, Bluetooth devices can transmit data within a range of 10 meters. Notes: • The actual maximum connection distance will vary due to interference and obstacles between devices. To obtai...
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• If you cannot use this program to install drivers for additional expansion cards and external devices, please install them manually. • If you discover that some drivers have not been installed after...
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Chapter 3. Set Up Your Computer Set Up Sleep Mode Note: The interface images in this chapter are for reference only. 1. In the search box, enter power supply and then press Enter. 2. In the pop-up box...
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• This section only introduces some common graphics card functions. For information about other functions, see the electronic help information that comes with the graphics card driver. • If you need t...
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Input Control Panel in the search box and press Enter. In the control panel window, go to "Hardware and Sound" → "Sound" to open the Sound interface. In the "Playback" ta...
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Think Centre M740t / M747t / M940t User Manual V2.0 (E-version)
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Chapter 4. Problem Diagnostics and Troubleshooting Computer System Unable to Start-up Normally Computer System Unable to Operate Normally Check... Solution Whether the power cord or the Adapter of the...
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Monitor Unable to Operate Normally (All-in-one models) Check... Solution When you turn on the computer, the screen does not • If the screen is black, check that: show anything. The power cable or powe...
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No Audio Output or Single Track after Audio Card is Installed Check... Solution Whether the connectors of the speaker or microphone are Connect the input connector of the speaker with the connected ap...
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External Devices Unable to Operate Normally Keyboard Unable to Operate Normally Check... Solution Whether the keyboard cable is connected appropriately Plug the keyboard cable into the keyboard connec...
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Check... Solution Whether the options related to the hard disk drive in BIOS Reset the information of the hard disk in BIOS setup are correct. appropriately. Whether the hard disk is damaged physicall...
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Think Centre M740t / M747t / M940t User Manual V2.0 (E-version)
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Chapter 5. Obtain Product Information and Help This chapter provides an index of information resources related to Lenovo products. If you need help, services, tech support, or detailed information on ...
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• Ownership of replaced machine and parts: After Lenovo, a Lenovo products dealer, or authorized Lenovo service provider replaces your product or a faulty part, the original machine or part will becom...
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Chapter 6. Additional Information Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information...
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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...
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for use on a Lenovo hardware product, Your hardware product sales transaction document is also the proof of Your right to use the Software Product. 2. License The Software Product is owned by Lenovo o...
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5. Software Product Specifications The Software Product specifications and specified operating environment information may be found in documentation accompanying the Software Product, if available, su...
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JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO 10. Consumer Rights Nothing in this Agreement affec...
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Term Definition bps Bits/second. It is the measurement unit of data transmission rate. Bps Bytes/second. It is the measurement unit of data transmission rate. CD-R It is a type of CD that can record d...
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Term Definition Heat Sink The heat conducting sheet metal can be connected to the top of chips to absorb heat such as microprocessor; by which to make chips work under lower temperature. Modem Abbrevi...
Manual Details
| Brand | Lenovo |
|---|---|
| Pages | 34 |
| File Size | 11.80 MB |
| Published | June 02, 2026 |
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Frequently Asked Questions
What warning should I observe when using the computer's cooling system?
Do not cover the heat dissipation vents on the top of the product with a dust shield or cloth while it is running.
What types of surfaces are difficult for an optical mouse to use effectively?
It struggles on glass table tops, mirrors, highly polished metal surfaces, and those with strong directional textures like marble or brushed wood.
If my computer has a wireless card, how do I fix connection issues with older routers?
You must contact your router manufacturer to request an official firmware update for the compatibility issue.
Where can I adjust the startup routine priority of connected devices?
The user manual indicates you can set up or change the BIOS Boot Order using internal system settings.