1. Introducció
The GMKtec M3 Plus is a high-performance Mini PC designed for a wide range of applications, from business and office tasks to gaming and home entertainment. Powered by the Intel Core i9-12900HK processor and running Windows 11 Pro, it offers robust performance in a compact form factor. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.
Video: Promotional overview of the GMKtec Nucbox M3 Plus Mini PC's features and applications.
2. Què hi ha a la caixa
Si us plau, comproveu el contingut del paquet per assegurar-vos que hi hagi tots els elements:
- GMKtec Nucbox M3 Plus Mini PC
- Power Supply & Cable
- Manual d'usuari (aquest document)
- Cable HDMI
- Muntatge VESA amb cargols

Image: The retail packaging showing the Mini PC, power adapter, HDMI cable, VESA mount, and user manual.
3. Producte acabatview
3.1. Disseny compacte
The GMKtec M3 Plus features a lightweight and compact body, making it ideal for various setups. Its small footprint allows it to fit seamlessly into any workspace or entertainment area.

Image: The GMKtec M3 Plus Mini PC on a desk, highlighting its compact dimensions (4.48in x 4.17in x 1.67in) and lightweight design (0.79lb).
3.2. Interfaces and Ports
The Mini PC is equipped with a rich set of interfaces to connect all your peripherals and displays.

Imatge: Detallada view of the Mini PC's ports, including front USB 3.2 ports and power button, and rear ports.
- Ports frontals: 2x USB 3.2, Power Button
- Ports posteriors: DC IN (20V/5A), 3.5mm CTIA Audio, 2x HDMI (4K@60Hz), Intel i226V 2.5G LAN, 1x USB 3.2, 1x USB 2.0 (DP1.4/DATA Type-C)
3.3. Internal Components & Expandability
The M3 Plus is designed for easy installation and upgrades.

Imatge: Una explosió view of the Mini PC's internal layout, highlighting the DDR4 RAM slots, M.2 2280 PCIe 3.0 SSD slot, M.2 2242 SATA/PCIeX4 slot, and WiFi 6 + BT 5.2 module.
- Processador: Intel Core i9-12900HK (12th Generation, 14 Cores, 20 Threads, up to 5.0 GHz Max Frequency, 24MB Smart Cache)
- RAM: DDR4 3200MT/s, Dual Channel SO-DIMM x2 (Max 64GB)
- Emmagatzematge: M.2 2280 PCIe 3.0 SSD (Max 2TB, supports SATA & PCIeX4), M.2 2242 SATA/PCIeX4 (Max 4TB, not included)
- Gràfics: Intel Iris Xe Graphics 1450MHz (Integrated Card)
- Refrigeració: Twin Cooling Pipes Turbofan System, Smart Cooling Fan for low noise and high-performance heat dissipation.
- Connectivitat: WiFi 6, Bluetooth 5.2, 2.5G High Speed Ethernet (RJ45 Gigabit Network)

Imatge: Una imatge detallada view of the Intel Core i9-12900HK processor, emphasizing its 12th generation architecture.

Image: A graphic detailing the Intel i9-12900HK processor's specifications: 5.0 GHz Max Frequency, 14 Cores, 20 Threads, 24 MB Smart Cache.
4. Instruccions de configuració
4.1. Connexió inicial
- Connect your monitor(s) to the HDMI ports or the Type-C port on the back of the Mini PC.
- Connecteu el teclat i el ratolí als ports USB disponibles.
- Connect the power adapter to the DC IN port on the Mini PC and then plug it into a power outlet.
- Premeu el botó d'engegada que es troba a la part frontal del Mini PC per engegar-lo.
4.2. Instal·lació del suport VESA
The included VESA mount allows for flexible placement of your Mini PC, such as mounting it behind a monitor, on a wall, or under a desk.

Image: Illustrations of the Mini PC mounted on a wall, under a table, and placed on a desktop.
- Attach the VESA mount bracket to the desired surface (e.g., back of a VESA-compatible monitor, wall, or underside of a desk) using the provided screws.
- Carefully slide the Mini PC onto the mounted bracket until it clicks securely into place.
- Ensure the Mini PC is firmly attached before releasing això.
5. Instruccions de funcionament
5.1. Sistema operatiu
Your GMKtec M3 Plus comes pre-installed with Windows 11 Pro. Follow the on-screen instructions for initial setup, including language, region, and user account creation.
5.2. Triple Screen Display
The Mini PC supports triple screen 4K display, allowing for enhanced productivity and immersive entertainment.

Image: A setup demonstrating the Mini PC's capability to drive three independent displays simultaneously for work, entertainment, and gaming.
- Connect up to two monitors via the HDMI (4K@60Hz) ports.
- Connect a third monitor via the Type-C (DP1.4/DATA) port.
- Configure display settings in Windows 11 Pro to extend or duplicate your desktop across multiple screens.
5.3. Connexió a la xarxa
The Mini PC offers both wired and wireless connectivity options:
- Amb cable: Connect an Ethernet cable to the 2.5G LAN (RJ45) port for high-speed internet access.
- Sense fil: The device supports WiFi 6 for fast and stable wireless connections. Connect to your preferred Wi-Fi network through Windows settings.
- Bluetooth: Integrated Bluetooth 5.2 allows you to connect wireless peripherals such as keyboards, mice, and headphones.

Image: A graphic showing the performance benefits of 2.5G High Speed Ethernet, with read-write speeds up to 271MB/sec and transmission speeds up to 230MB/sec.
6. Especificacions
| Característica | Especificació |
|---|---|
| Nom de marca | GMKtec |
| Número de model | GMKtec M3 Plus |
| Model de processador | Intel Core i9-12900HK |
| Nuclis/Fils de processador | 14 nuclis / 20 fils |
| Max Processor Frequency | 5.0 GHz |
| Cache intel·ligent | 24 MB |
| Tipus | Mini Desktop / Mini PC |
| Sistema operatiu | Windows 11 Pro |
| Capacitat de memòria | DDR4 3200MT/s (Dual Channel SO-DIMM x2, Max 64GB) |
| Capacitat del disc dur | M.2 2280 PCIe 3.0 SSD (Max 2TB), M.2 2242 SATA/PCIeX4 (Max 4TB, not included) |
| Tipus de targeta gràfica | Integrated Card (Intel Iris Xe Graphics 1450MHz) |
| Connectivitat | WiFi 6, Bluetooth 5.2, 2.5G LAN (Intel i226V) |
| Sortida de vídeo | 2x HDMI (4K@60Hz), 1x Type-C (DP1.4/DATA) |
| Ports USB | 5x USB 3.2, 1x USB 2.0 (Type-C) |
| Port d'àudio | CTIA de 3.5 mm |
| Entrada de potència | DC IN (20V/5A) |
| Dimensions | 4.48 polzades x 4.17 polzades x 1.67 polzades |
| Pes | 0.79 lliures |
| Cas d'ús | Commercial, Home, Office, Gaming |
| Origen | Xina continental |
| Certificació | CE |
7. Manteniment
To ensure the longevity and optimal performance of your GMKtec M3 Plus Mini PC, follow these maintenance guidelines:
- Neteja: Regularly clean the exterior of the Mini PC with a soft, dry cloth. Use compressed air to gently clear dust from the ventilation grilles to maintain proper airflow and cooling. Do not use liquid cleaners directly on the device.
- Actualitzacions de programari: Keep your Windows 11 Pro operating system and drivers updated to the latest versions. This ensures security, stability, and performance improvements.
- Ventilació: Ensure the Mini PC is placed in a well-ventilated area. Avoid blocking the air vents on the sides of the device.
- Font d'alimentació: Use only the original power adapter provided with your Mini PC.
- Gestió d'emmagatzematge: Revisa periòdicament l'ús de l'emmagatzematge i elimina els elements innecessaris files or applications to free up space and maintain system speed.
8. Solució De Problemes
If you encounter issues with your GMKtec M3 Plus, refer to the following common troubleshooting steps:
8.1. Sense poder
- Assegureu-vos que l'adaptador de corrent estigui connectat correctament tant al Mini PC com a una presa de corrent que funcioni.
- Comproveu si la presa de corrent funciona connectant-hi un altre dispositiu.
- Verify that the power button on the Mini PC is pressed firmly.
8.2. Sense pantalla
- Confirm that the HDMI or Type-C cables are securely connected to both the Mini PC and the monitor(s).
- Ensure your monitor is powered on and set to the correct input source (e.g., HDMI 1, HDMI 2, Type-C).
- Try connecting the Mini PC to a different monitor or using a different cable to rule out faulty equipment.
8.3. Sense connexió de xarxa
- Amb cable: Check if the Ethernet cable is properly connected to the LAN port and your router/modem. Verify that your router/modem is working correctly.
- Sense fil: Ensure Wi-Fi is enabled in Windows settings. Check if you are connected to the correct Wi-Fi network and that the password is entered correctly. Restart your router/modem.
8.4. Alentiment del sistema
- Tanca les aplicacions innecessàries que s'executen en segon pla.
- Comproveu i instal·leu les actualitzacions pendents de Windows.
- Assegureu-vos que hi hagi prou espai lliure a l'SSD.
- Monitor CPU and RAM usage in Task Manager to identify resource-intensive processes.
9. Consells d'usuari
Based on general user experiences with Mini PCs, here are some tips to enhance your experience:
- Consider using the VESA mount to free up desk space and create a cleaner setup.
- For optimal gaming or demanding applications, ensure the Mini PC has adequate ventilation.
- Utilize the triple display output for multitasking or an immersive gaming experience.
- Feu còpies de seguretat de les dades importants regularment en un disc dur extern o en un emmagatzematge al núvol.
Note: Specific user tips from reviewLes dades proporcionades no tenien opcions de preguntes i respostes.
10. Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the official GMKtec website or contact your seller directly. Keep your proof of purchase for warranty claims.





