Lenovo QiTian M445_M640_B445 User Manual
Summary
This comprehensive guide is designed for new owners, providing full support for setting up and operating your computer system. It meticulously details everything from initial hardware installation and connecting internal components to advanced software usage within Windows 10. The manual covers configuring connectivity options like Wi-Fi and Bluetooth, adhering to critical usage precautions, and offering step-by-step solutions for troubleshooting common operational issues, ensuring a smooth start to your digital experience.
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Qi Tian M445/M640/B445 User Manual V1.0 (E- version)
Page Summary Contents For Lenovo QiTian M445_M640_B445 User Manual
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Qi Tian M445/M640/B445 User Manual V1.0 (E- version)
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(April 2021) © Copyright Lenovo 2021.
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Contents Important Information Before Use. . . . iii Set Up NVIDIA Graphics Cards . . . . . . . 15 Computer Usage Precautions . . . . . . . . . . iii Set Up ATI Graphics Cards . . . . . . . . 15 Optic...
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ii Qitian M445/M640/B445 User Manual V1.0 (E-version)
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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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Qitian M445/M640/B445 User Manual V1.0 (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. Microphone co...
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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. Microphone connector 7. Headset connector 8. USB-C® (3.2 Gen...
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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. Microphone connector 7. Headset connector 8. USB 3.2 connect...
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Rear View 1. Microphone connector 2. HDMITM out connector 3. VGA out connector 4. PS/2 keyboard connector* 5. USB 2.0 connectors 6. USB 2.0 connector (with smart power on) 7. Power cord connector 8. A...
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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. Power cord connector 8...
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1. Microphone connector 2. HDMI-out connector 3. VGA out connector 4. PS/2 keyboard connector* 5. USB 2.0 connectors 6. USB 2.0 connector (with smart power on) 7. Power cord connector 8. Audio line-ou...
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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. Fo...
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3. Wait for the computer to shut down and then turn off the monitor and other peripheral devices. Note: After you turn off the system, please wait at least 20 seconds before turning the computer back ...
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If your computer has an Express Card slot, you can connect an Express Card device. Insert the Express Card device 1. Push the dust protection card until it clicks into place. Gently remove the dust pr...
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Full installation: When this option is enabled, the smart driver installation program will automatically detect the computer hardware information and display a hardware information dialog box. After y...
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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. For the Windows 10 operating system: 1. Right-click the start icon to bring up a me...
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4. After configuring this setting, click the start icon and then "Power" → "Sleep" to put the computer into power-saving mode. Note: In power-saving mode, the computer sleep time c...
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Graphics Card Setup Notes: This section only applies to graphics cards with a multi-display output function. If the computer you purchased does not come with a graphics card that supports this functio...
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This section assumes you are using the Windows 10 operating system. Right-click on a blank space on the desktop. In the menu that appears, select "Display settings" to go to the Display inte...
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Chapter 4. Software Use Note: Do not install or use pirated software or software that may contain computer viruses. Using Windows 10 System Software Using the Start Menu Click the Start menu icon in t...
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Delete Desktop:Click the "Task View" icon in the taskbar to bring up the task management interface. Move your cursor to the desktop to delete and click the x button in the upper-right corner...
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Chapter 5. 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 power ...
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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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Qitian M445/M640/B445 User Manual V1.0 (E-version)
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Chapter 6. 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 become ...
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Chapter 7. Additional Information Lenovo License Agreement This Lenovo License Agreement (the “Agreement”) applies to each Lenovo Software Product that You acquire, whether it is preinstalled on or in...
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You will ensure that anyone who uses the Software Product (accessed either locally or remotely) does so only for Your authorized use and complies with the terms of this Agreement. You may not a) use, ...
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If any authority imposes a duty, tax, levy or fee, excluding those based on Lenovo’s net income, upon the Software Product, then You agree to pay the amount specified or supply exemption documentation...
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12. Dispute Resolution If You acquired the Software Product in Cambodia, Indonesia, Philippines, Vietnam or Sri Lanka, disputes arising out of or in connection with this Software Product shall be fina...
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Term Definition KB Kilobyte. It is the measurement unit of data (1 KB is equal to 1,024 bytes).1024 KB is equal to 1 MB. KHz Kilohertz. It is the measurement unit of frequency (1 KHz is equal to 1,000...
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Mini Display Port (m DP) and Display Port are Trademarks of the Video Electronics Standards Association. Microsoft, Windows, and Windows Media are trademarks of the Microsoft group of companies. The t...
Manual Details
| Brand | Lenovo |
|---|---|
| Pages | 38 |
| File Size | 11.41 MB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What precautions should I take regarding dust and vents?
Do not use a dust shield or cloth to cover the heat dissipation vents when the computer is running.
What happens if my wireless network card is outdated?
It may be incompatible with certain routers, causing connection failures; contact your router manufacturer for firmware updates.
What causes poor performance of an optical mouse and on what surfaces is it most degraded?
The performance is degraded when used on non-reflective surfaces like glass, highly shiny materials like metal, or repetitive patterns like marble tabletops.
How can I improve my optical mouse performance if my desk surface is unsuitable?
Place a piece of ordinary white paper that is not dyed to improve the optical mouse's function.