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 POS 12SU, 12SV, 12SW, 12SX, 12UK, 12UJ, 12UH, 12UG, 12UL, and 12UM •...
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USB device Data rate (Gbit/s) 3.2 Gen 1 3.2 Gen 2 3.2 Gen 2 × 2 Thunderbolt 3 Thunderbolt 4 Power indicator Show the system status of your computer. • Blinking for three times: The computer is initially connected to power. •...
Rear ™ 2. DisplayPort in connector 1. USB 2.0 connector ® 3. USB-C (3.2 Gen 1) connector* 4. Security-lock slot 5. Optional connectors* ® 6. Wi-Fi antenna slot* 7. Ethernet connector 8. USB 3.2 connectors Gen 2 9. USB 2.0 (with smart power-on feature) ™...
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Related topics • “Lock the computer” on page 11. • “Connect an external display” on page 9. • “USB specifications” on page 6. POS User Guide...
Specifications Specification Description • Width: 253 mm (10 inches) Dimensions • Height: 417.6 mm (16.4 inches) • Depth: 364 mm (14.3 inches) Weight (without packaging) Maximum configuration as shipped: 5.2 kg (11.6 lb) Type Device Manager in the Windows search box and then press Enter. Type the Hardware configuration administrator password or provide confirmation, if prompted.
• Charge USB-C compatible devices with the output voltage and current of 5 V and 0.9 A. • 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 (3.2 Gen 1) connector • USB-C (3.2 Gen 2) connector...
Ethernet cable. Lenovo Smart Retail Solution (for selected models) Lenovo Smart Retail Solution is a comprehensive, user-friendly store management software designed to facilitate the management of in-store operations for retail businesses. For information about Lenovo Smart Retail Solution, go to https://support.lenovo.com/docs/lenovo_smart_...
Use the touch screen (for selected models) If your computer display supports the multi-touch function, you can navigate the screen with simple touch gestures. For more touch gestures, refer to https://support.microsoft.com/windows Note: Some gestures might not be applicable when you use certain apps. Illustrations and description Illustrations and description Tap once to single click...
Illustrations and description Illustrations and description Zoom in Zoom out Swipe from the left: view all open windows (Windows 10) Swipe from the right: open action center (Windows 10) Swipe from the left: open widget panel (Windows 11) Swipe from the right: open notification center (Windows Swipe downwards shortly: show title bar Drag Swipe downwards: close the current app...
Press Windows logo key + K and then select a wireless display to connect. 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 and change display settings of your preference. Connect to a Bluetooth device You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a smartphone, or speakers.
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. Smart USB protection The Smart USB Protection function is a security function that helps prevent data from being copied from the computer to USB storage devices connected to the computer. You can set the Smart USB Protection function to one of the following modes: •...
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.
When you install a new program, device driver, or hardware component, you might need to update the UEFI BIOS. Download and install the latest UEFI BIOS update package by one of the following methods: From the Lenovo Support Web site Step 1. Go to https://pcsupport.lenovo.com...
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.
• Hard disk drive* • Hard disk drive bracket* • System fan * for selected models Power adapter and power cord Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1.
15.6-inch monitor Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Turn off the computer and remove all connected devices and cables. 2. Disconnect the computer from ac power and all connected cables. Replacement procedure 11.6-inch monitor Prerequisite...
Removal steps VESA bracket 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. For access, do the following: 1.
Removal steps External Wi-Fi antenna Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Turn off the computer and remove all connected devices and cables. 2. Disconnect the computer from ac power and all connected cables. Removal steps Chapter 4 CRU replacement...
Rear cable cover Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following, if any: 1. Turn off the computer and remove all connected devices and cables. 2. Disconnect the computer from ac power and all connected cables. 3.
Monitor stand for 15.6-inch monitor Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Turn off the computer and remove all connected devices and cables. 2. Disconnect the computer from ac power and all connected cables. 3.
Removal steps Computer cover Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following, if any: 1. Turn off the computer and remove all connected devices and cables. 2. Disconnect the computer from ac power and all connected cables. 3.
Removal steps Hard disk drive and hard disk drive bracket 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: •...
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2. Disconnect the hard disk drive cable from the hard disk drive. Replacement procedure POS User Guide...
Internal speaker Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove the computer cover. See “Computer cover” on page 22. 2. Disconnect the internal speaker cable from the internal speaker connector on the system board. Chapter 4 CRU replacement...
Removal steps • Type-1 • Type-2 System fan Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove the computer cover. See “Computer cover” on page 22. 2. Remove the internal speaker. See “Internal speaker” on page 25. 3.
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4. Disconnect the system fan cable from the system fan connector on the system board. Replacement procedure Chapter 4 CRU replacement...
Coin-cell battery Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel connector assignments (configurations). A coin-cell battery keeps this information active when you turn off the computer.
Replacement procedure M.2 solid-state drive Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the M.2 solid-state drive, observe the following guidelines: •...
Removal steps 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 the following parts in order: •...
• 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. They can help you diagnose common software and hardware issues.
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.
Self-help resources Use the following self-help resources to learn more about the computer and troubleshoot problems. Resources How to access? Lenovo Support Web Site https://smartsupport.lenovo.com Tips https://www.lenovo.com/tips Lenovo Community https://forums.lenovo.com Accessibility information https://www.lenovo.com/accessibility • Open the Start menu and click Get Help or Tips.
• System label 2 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. POS User Guide...
To shop at Lenovo, go to https://www.lenovo.com/accessories Purchase additional services During and after the warranty period, you can purchase additional services from Lenovo at: https://support.lenovo.com/warranty-upgrade-and-services/ Service availability and service name might vary by country or region. Chapter 5 Help and support...
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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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.