1. Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your GMKtec NucBox M3 Plus Mini PC. Please read it thoroughly before using the device to ensure optimal performance and longevity.
Package Contents
- GMKtec NucBox M3 Plus Mini PC x 1
- Power Adapter x 1
- HDMI Cable x 1
- VESA Mount with Screws x 1
- User Manual x 1
The package includes all necessary components to get your mini PC up and running. Ensure all items are present before proceeding with the setup.
2. Product Overview and Features
The GMKtec NucBox M3 Plus is a high-performance mini PC designed for various applications, from gaming and multimedia to business and programming. It features the latest 12th Gen Intel Core i9-12900HK processor, offering significant performance improvements over previous generations.
Key Features:
- Processor: Intel Core i9-12900HK (14 Cores, 20 Threads, up to 5.0 GHz)
- Memory: 16GB DDR4 RAM (expandable up to 64GB)
- Storage: 1TB M.2 2280 PCIe 3.0 SSD (expandable up to 4TB)
- Graphics: Intel Iris Xe Graphics (integrated)
- Operating System: Windows 11 Pro
- Connectivity: Wi-Fi 6, Bluetooth 5.2, 2.5G LAN
- Display Output: Supports triple 4K@60Hz displays via 2x HDMI and 1x Type-C (DisplayPort)
3. Setup
Follow these steps to set up your GMKtec NucBox M3 Plus Mini PC for the first time.
Initial Connection:
- Connect to Display: Use the provided HDMI cable to connect the mini PC to your monitor or TV. You can use either of the two HDMI ports or a Type-C to DisplayPort cable for a third display.
- Connect Peripherals: Plug in your USB keyboard and mouse into the available USB 3.2 or USB 2.0 ports.
- Network Connection: For wired internet, connect an Ethernet cable to the 2.5G LAN port. For wireless, ensure your Wi-Fi network is available during setup.
- Power On: Connect the power adapter to the DC IN port on the mini PC, then plug the adapter into a power outlet. Press the power button on the front of the mini PC.
First Boot and Windows Setup:
Upon first boot, the system will guide you through the Windows 11 Pro setup process. Follow the on-screen prompts to configure language, region, network, and user accounts. This process may take several minutes.
VESA Mount Installation:
The included VESA mount allows you to attach the mini PC to the back of a compatible monitor or TV, saving desk space. Secure the VESA bracket to your display's VESA mounting holes using the provided screws, then slide the mini PC onto the bracket until it clicks into place.
4. Operating
Once set up, your GMKtec NucBox M3 Plus is ready for use. It operates like any standard Windows 11 Pro desktop computer.
Basic Operation:
- Power On/Off: Press the power button to turn the device on. To turn off, use the Windows Start menu (Power > Shut down) or press and hold the power button for a few seconds.
- Restart: Use the Windows Start menu (Power > Restart).
- Sleep Mode: Use the Windows Start menu (Power > Sleep) or briefly press the power button.
Multi-Display Setup:
The NucBox M3 Plus supports up to three independent 4K@60Hz displays simultaneously, enhancing productivity and immersive experiences.
- Connect your displays to the available HDMI ports and the Type-C (DisplayPort) port.
- Once connected, Windows will automatically detect the displays.
- To configure display settings (e.g., extend, duplicate, resolution), right-click on the desktop and select "Display settings."
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your mini PC.
Storage and RAM Upgrade:
The NucBox M3 Plus is designed for easy upgrades of its RAM and SSD. It supports up to 64GB DDR4 RAM and up to 4TB SSD storage.
- Ensure the device is powered off and unplugged from the power source.
- Carefully remove the bottom cover of the mini PC.
- Locate the M.2 2280 SSD slot and the DDR4 SO-DIMM slots.
- Install or replace the components as needed. Refer to the internal diagram for slot locations.
- Securely reattach the bottom cover.
Cooling System:
The mini PC features a twin cooling pipe turbofan system for efficient heat dissipation. Keep the air vents clear of obstructions to ensure proper airflow.
Cleaning:
Regularly clean the exterior of the mini PC with a soft, dry cloth. Use compressed air to gently clear dust from the vents. Do not use liquid cleaners or abrasive materials.
6. Troubleshooting
This section addresses common issues you might encounter with your GMKtec NucBox M3 Plus.
No Power/No Display:
- Ensure the power adapter is securely connected to both the mini PC and a working power outlet.
- Verify that the display cable (HDMI/Type-C) is firmly connected to both the mini PC and the monitor.
- Test with a different display cable or monitor if possible.
- Confirm the monitor is set to the correct input source.
Fan Noise:
- Under heavy load (e.g., gaming, intensive tasks), the fan speed will increase, leading to audible noise. This is normal operation.
- Ensure the mini PC is placed in a well-ventilated area and that its air vents are not obstructed.
- Clean dust from the vents regularly as described in the Maintenance section.
System Instability/Crashes:
- Ensure all drivers are up to date. You can check for updates through Windows Update or the GMKtec support website.
- Run a system diagnostic to check for hardware issues.
- If issues persist, consider performing a Windows system restore or reinstallation.
Connectivity Issues (Wi-Fi/Bluetooth/LAN):
- For Wi-Fi/Bluetooth, ensure the antennas (if external) are properly connected and that the devices are within range of the router/peripheral.
- For LAN, check the Ethernet cable connection and your network router.
- Update network drivers.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | GMKtec |
| Model Series | NucBox M3 Plus |
| Product Dimensions | 11.4 x 10.6 x 4.2 cm |
| Item Weight | 1.47 Kilograms |
| Processor Brand | Intel |
| Processor Type | Intel Core i9-12900HK |
| Processor Speed | 5 GHz (Max Frequency) |
| Number of Processors | 14 Cores |
| RAM Type | DDR4 SDRAM |
| Installed RAM Size | 16 GB |
| Max Memory Supported | 64 GB |
| Hard Drive Size | 1 TB |
| Hard Drive Type | SSD (M.2 2280 PCIe 3.0) |
| Graphics Accelerator | Intel UHD Graphics 770 |
| Graphics Card Type | Integrated |
| VRAM Size | 16 GB (Shared) |
| Connectivity | Bluetooth 5.2, Wi-Fi 6 (802.11ax), 2.5G Ethernet |
| USB 2.0 Ports | 1 |
| USB 3.0 Ports | 3 |
| HDMI Ports | 2 |
| Type-C Ports | 1 (Supports DisplayPort 1.4) |
| Operating System | Windows 11 Pro |
| Max Resolution | 4096 x 2160 (4K) |
8. Warranty and Support
GMKtec provides a one-year warranty service for this product. During the warranty period, if any malfunction occurs under normal use, the company will repair or replace the product.
Warranty Coverage:
- Covers defects in materials and workmanship under normal use.
- Does not cover damage caused by misuse, accident, unauthorized modification, or external factors.
Customer Support:
For technical support, warranty claims, or any inquiries regarding your GMKtec NucBox M3 Plus, please contact GMKtec customer service. Refer to the contact information provided on the official GMKtec website or your purchase documentation.
Please have your product model number and purchase details ready when contacting support to facilitate a quicker resolution.
