MSI Cubi Series Service Manual

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Cubi Series

Personal Computer

Cubi NUC AI 1UMG

(MS-B209)

Service Guide

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Summary of Contents for MSI Cubi Series

Page 1 Cubi Series Personal Computer Cubi NUC AI 1UMG (MS-B209) Service Guide...
Page 2 Contents Copyright and Trademarks Notice ..............5 Revision ........................5 How to Use this Service Guide ................5 Safety Instructions ....................6 Power ........................6 Battery ........................6 Environment ......................6 Conditional Warranty Service ................7 Upgrade and Service ..................... 7 Data Sanitization ....................
Page 3 Memory Module Assembly ................25 Mainboard Disassembly ..................26 Mainboard Assembly ...................27 Fan & Heat Sink Disassembly................28 Fan & Heat Sink Assembly ..................29 Coin Battery Disassembly ...................30 Coin Battery Assembly ..................31 TPM Module Disassembly ..................32 TPM Module Assembly ..................33 Top Bracket Disassembly ..................34 Top Bracket Assembly ..................35 Wireless Keyboard Disassembly (Optional) ............36 Wireless Keyboard Assembly (Optional) ............37...
Page 4 Product End-of-Life Instructions ...............48 Purpose ........................ 48 Information on Component and Material Identification ....... 48 Product Take-Back Service..................50 Using MSI Center .................51 Login and Register ....................52 Create an Account ....................52 Product Registration ................... 53 Feature Sets ......................54 Hardware Monitoring..................55 Features .........................56...
Page 5 Copyright and Trademarks Notice Copyright © 2023 Micro-Star Int’l Co., Ltd. All rights reserved. The MSI logo used is a registered trademark of Micro-Star Int’l Co., Ltd. Third- party trademarks and names are the properties of their respective owners. No warranty as to accuracy or completeness is expressed or implied.
Page 6 ● Place the power cord in a way that people are unlikely to step on it. Do not place anything on top of the power cord. ● If this product comes with an adapter, use only the MSI provided AC adapter approved for use with this product.
Page 7 MSI offers customers replacement parts, product repair and services for 3 years from the date of sale for all EPEAT-registered products. Damages caused by servicing of products not authorized by MSI or the use of modified or non-MSI authorized parts or components are not covered by MSI Limited Warranty Agreement.
Page 8 Publicly Available Service Information Service Information Section Product Components and Disassembly instructions including Accessories identifying the required tools. Recommended Tools Product Components and Exploded diagram of parts. Accessories Product Upgradeability and List of spare parts including manufacturer- Repairability approved spare parts and how to obtain them.
Page 9 Disassembly & Assembly...
Page 10 Product Components and Accessories ⚠ Important MSI provides the below list of components for the system configuration purchased and within 2 years after discontinuation of the product to increase the operational life of that product. Further services can be obtained by contacting...
Page 11 Components EOL Instructions...
Page 12 Product Upgradeability and Repairability Hardware features for upgradeable, repairable or replaceable using only commonly available tools and listing of replaceable spare parts by products can MSI Online Customer Service be obtained by contacting hyperlinks Please refer to the following for specific details of the replacement or upgrade methods.
Page 13 Components EOL Instructions Recommended Tools The following tools may be needed while performing the disassembly and assembly procedures. ● Tweezers ● Diagonal pliers ● Anti-static gloves ● Needle-nose pliers ● Cross-head screwdriver ● Pry tool (optional) ● Heat gun (optional) ●...
Page 14 Preparation for Disassembly 1. Power off the PC. 2. Disconnect the power cord from the electrical outlet. 3. Disconnect the power cord from the PC. ⚠ Important ● Disconnect all power sources and place the PC on a steady surface before disassembly/assembly.
Page 16 Bottom Bracket Disassembly 1. Place the computer on a steady surface. 2. Locate and remove the K-slot plug with your fingertip. 3. Locate and remove the power button switch plug with a tweezers. 4. Flip the computer over. Locate and remove the screws that secure the bottom bracket with a cross-head screwdriver.
Page 17 Components EOL Instructions Bottom Bracket Assembly 1. Place the bottom bracket atop the computer with screw holes aligned 2. Tighten the screws with a cross-head screwdriver to secure the bottom bracket in place. 3. Replace the power button switch plug with a tweezers.
Page 18 External Power Switch Cable Disassembly (Optional) 1. Hold the connector part of the external power switch cable disconnect it from the computer.
Page 19 Components EOL Instructions External Power Switch Cable Assembly (Optional) 1. Locate and hold the connector part of the external power switch cable and connect it to the computer.
Page 20 Solid State Drive Disassembly 1. Remove the screws that secure the solid-state drive with a cross-head screwdriver. 2. Slide and remove the solid-state drive from the M.2 slot.
Page 21 Components EOL Instructions Solid State Drive Assembly 1. Align the notch on the solid-state drive with the tab on the M.2 slot. 2. Slide the solid-state drive into the M.2 slot. 3. Replace and tighten the screw with a cross-head screwdriver to secure the solid-state drive &...
Page 22 Wireless Card Disassembly 1. Follow Solid-State Drive Disassembly to remove the SSD and uncover the wireless card underneath. 2. Locate and remove the screw that secures the wireless card with a cross-head screwdriver. Remove the wireless card from the card slot. 3.
Page 23 Components EOL Instructions Wireless Card Assembly 1. Connect the antenna cables to the wireless card. Make sure the black antenna cable is connected to MAIN and the gray antenna cable is connected to AUX. 2. Replace and secure the wireless card clip onto the wireless card.
Page 24 Memory Module Disassembly 1. Spread apart the slot clips on the memory module slot until the memory module pops up. 2. Slide and remove the memory module from the slot. 3. Repeat the steps if there are more memory modules...
Page 25 Components EOL Instructions Memory Module Assembly 1. Align the notch on the memory module with the key on the slot and insert the memory module into the slot. 2. Push the memory module gently downwards until the slot clips click and lock the memory module in place.
Page 26 Mainboard Disassembly 1. Flip the computer over and pull the mainboard off the top cover...
Page 27 Components EOL Instructions Mainboard Assembly 1. Check the mainboard and the top bracket for correct orientation of assembling and alignment of screw holes 2. Place the mainboard into the top cover and gently press down to fit the mainboard in place.
Page 28 Fan & Heat Sink Disassembly 1. Disconnect the fan cable from the mainboard. 2. Remove the screws that secure the fan with a cross-head screwdriver. 3. Lift the fan and its cable off the mainboard. 4. Remove the screws that secure the heat sink with a cross-head screwdriver.
Page 29 Components EOL Instructions Fan & Heat Sink Assembly 1. Apply proper amount of thermal paste directly onto the center of the CPU. 2. Place the heat sink atop the CPU with screw holes aligned. 3. Replace and tighten the screws with a cross-head screwdriver to secure the heat sink in place.
Page 30 Coin Battery Disassembly ⚠ Important ● Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. ● Avoid disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, which can result in an explosion.
Page 31 Components EOL Instructions Coin Battery Assembly 1. Replace the coin battery and secure it with its adhesive tape underneath. 2. Connect the coin battery cable...
Page 32 TPM Module Disassembly 1. Locate and disconnect the TPM module cable 2. Use your fingers to grab the edge of the TPM module and gently pull it off the mainboard.
Page 33 Components EOL Instructions TPM Module Assembly 1. Place the TPM module onto the mainboard and secure the module with its adhesive tape underneath. 2. Connect the TPM module cable...
Page 34 Top Bracket Disassembly 1. Release the top bracket by removing the screws that secure the top bracket with a cross-head screwdriver. 2. Remove the top bracket from the top cover...
Page 35 Components EOL Instructions Top Bracket Assembly 1. Fit the top bracket into the top cover with screw holes aligned. 2. Secure the top bracket in place by tightening the top bracket screws with a cross-head screwdriver.
Page 36 Wireless Keyboard Disassembly (Optional) 1. Loosen and remove screws with a cross-head screwdriver. Use your finger to remove the battery cover , batteries , and receiver from the bottom case 2. Use a parallel screwdriver to peel off the mylar in the indicated direction.
Page 37 Components EOL Instructions Wireless Keyboard Assembly (Optional) To assemble the wireless keyboard, follow the disassembly steps in reverse.
Page 38 Wireless Mouse Disassembly (Optional) 1. Remove the feet stickers using a parallel screwdriver. 2. Use a cross-head screwdriver to remove the screw . Detach the battery cover , take out the batteries and receiver using your fingers. 3. Using your fingers to separate the top case , the bottom case remove the assistant PCB 4.
Page 39 Components EOL Instructions Wired Mouse Disassembly (Optional) 1. Remove the feet stickers using a parallel screwdriver. Use a cross-head screwdriver to remove the screw 2. Separate the top case , key plate and bottom case using your fingers. 3. Use a cross-head screwdriver to remove the screws that secured the PCB 4.
Page 40 Wired Keyboard Disassembly (Optional) 1. Loosen and remove the screws with a cross-head screwdriver. 2. Flip the keyboard over, use a pry tool to separate the top case 3. Use a cross-head screwdriver to loosen and remove screws , then detach the PCB and wired keyboard USB cable from the PCB with your...
Page 41 Components EOL Instructions Wired Keyboard Assembly (Optional) To assemble the wired keyboard, follow the disassembly steps in reverse.
Page 42 ⚠ Important ● Use only the MSI provided AC adapter approved for use with this PC. ● If the power cord comes with a 3-pin plug, do not disable the protective earth pin from the plug. The PC must be connected to an earthed mains socket- outlet.
Page 43 Users may refer to the following tips or visit for quick and easy troubleshooting when encountering common problems with the product. It is always suggested that users contact the authorized MSI service center for advanced tech support if needed. My system does not start.
Page 44 Recovering the system with the F3 Hotkey 1. Restart the PC. 2. Press the F3 hotkey on the keyboard promptly when the MSI greeting appears on the display. 3. On the [Choose an option] screen, select [Troubleshoot].
Page 45 Components EOL Instructions Recycling Guidelines In line with our commitment to environmental sustainability, this product is designed with separable plastic components to enhance plastic recycling quality. We kindly request that you responsibly recycle the recyclable plastic components of this product once it reaches the end of its useful life. Follow the instructions below to prepare plastic parts for recycling by eliminating non-recyclable materials.
Page 46 External Power Supply 1. Use diagonal pliers to cut the external power supply DC cable 2. Use heat gun to heat the betweens of upper and lower cases of the power adapter, and then use a parallel screwdriver to separate the cases. 3.
Page 47 Components EOL Instructions Wireless Keyboard (Optional) 1. Refer to Wireless Keyboard Disassembly to disassemble wireless keyboard. 2. Please recycle the top case and bottom case to qualified recyclers. Wireless Mouse (Optional) Wireless Mouse Disassembly 3. Refer to to disassemble the wireless mouse. 4.
Page 48 Product End-of-Life Instructions ⚠ Important MSI Environmental Information Information on MSI’s Environmental initiatives, policies, programs and goals can Environmental Sustainability Policy be found at Purpose This information is to provide the guidance to recyclers on the presence of materials and components at the product level, as required by the EU WEEE and amending Directive.
Page 49 Components EOL Instructions Materials Item*1 Location Printed circuit boards of mobile phones Mainboard generally, and of other devices if the surface TPM Module of the printed circuit board is greater than 10 square centimeters External Power Supply Main PCB Wireless Keyboard PCB Wireless Mouse Wired Mouse PCB...
Page 50 Waste electrical equipment may contain hazardous substances and thus endanger human health & the environment. Proper disposal is therefore required. MSI provides free recycling of EPEAT-registered products to ensure that the product reaches the end of its useful life and that it is recycled responsibly.
Page 51 Using MSI Center...
Page 52 MSI product to get full benefits from MSI Center at once. Create an Account 1. Make sure the Internet connection works properly. 2. Activate MSI Center. Click the profile icon at the upper right corner and click [Login]. 3. Select [Join MSI Member].
Page 53 1. MSI Center will automatically detect your MSI devices. Click [Product Registration] and follow the on-screen instructions to complete the registration. 2. To register more MSI multimedia accessories connected to your system, click [Add New Product] and follow the on-screen instructions to add and register your accessories.
Page 54 Feature Sets Users can download, update or uninstall MSI exclusive features in Feature Sets. 1. Click the [Feature Sets] icon at the upper right corner. 2. Install or uninstall any MSI features to meet your personal needs.
Page 55 Hardware Monitoring Hardware Monitoring provides real-time status of the CPU, GPU, memory, fans, etc. Click [Free Up Memory] to release system memory that is no longer required.
Page 56 Features [Features] will vary depending on the features users have installed through [Feature Sets].
Page 57 ● To clean up the storage, click [Clean Up Disk], select the drive you want to clean up from the pop-up menu, and follow the on-screen instructions to clean up the storage. ● To free up memory, click [Free Up Memory] and MSI Center will instantly release system memory that is no longer required.
Page 58 Support Support offers various customer support channels to fulfill the needs of every user. Live Update Live Update It is recommended that users click [Scan] under [Live Update] to get the latest MSI or third-party utilities for update.
Page 59 Microsoft APP When using this function for the very first time, analyzing the system with Live Update is a must. 1. Click [Scan] under [Live Update]. 2. Click [Microsoft APP] where a list of compatible applications on Microsoft Store are displayed. 3.
Page 60 Service Forum & Channel ● [MSI Forum]: Directing users to MSI Global Forum for discussion with global users. ● [How-To Channel]: Directing users to MSI HOW-TO CHANNEL for guides, tips & tricks that help you get more from your MSI products.
Page 61 Troubleshooting ● [After-Sales Service]: Providing instructions on repair, warranty and other after-sales services. ● [Support Article]: Offering advice on how to troubleshoot your MSI products. If further assistance is needed, click [More] for MSI online service and support.

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