1. Introducció
This manual provides detailed instructions for the setup, operation, and maintenance of your GMKtec M3 Mini PC. The GMKtec M3 is a compact and powerful desktop computer featuring an Intel Core i5-12450H processor, 32GB DDR4 RAM, and a 1TB NVMe SSD, designed for various computing tasks from daily work to multimedia consumption.

Image: The GMKtec M3 Mini PC, showcasinel seu disseny compacte i els seus diversos ports.
2. Contingut del paquet
Si us plau, verifiqueu que tots els elements que s'enumeren a continuació estiguin inclosos al vostre paquet:
- 1 x GMKtec Nucbox M3 Intel Core i5-12450H Mini PC Computer
- 1 x adaptador de corrent
- 1 x VESA Mount with Screws
- 1 x cable HDMI
- 1 x Manual d'usuari

Image: Contents of the GMKtec M3 Mini PC retail box, including the PC, power adapter, VESA mount, HDMI cable, and user manual.
3. Producte acabatview i Característiques
The GMKtec M3 Mini PC is engineered for high performance and versatility. Key features include:
- Processador: Intel Core i5-12450H (up to 4.4 GHz, 8 Cores, 12 Threads)
- Memòria: 32GB DDR4 Dual-Channel RAM (2x16GB)
- Emmagatzematge: 1TB M.2 2280 NVMe SSD (PCIe 3.0), expandable with M.2 2242 SATA SSD up to 2TB
- Gràfics: Intel Iris Xe Graphics G7 96EU GPU
- Suport de visualització: Triple 4K UHD display output via 2x HDMI and 1x USB Type-C
- Xarxa: 2.5Gbps LAN (RJ45), WiFi 6 (2.4G+5G), Bluetooth 5.2
- Sistema operatiu: Pre-installed Windows 11 Pro, compatible with Ubuntu and Linux
Ports de connectivitat
The Mini PC offers a rich set of ports for various peripherals and displays:
- 2 x USB 3.2 ports (front)
- 1 x Power Button (front)
- 1 x Audio (3.5mm CTIA) port (rear)
- 1 x USB 2.0 port (rear)
- 1 x USB Type-C (DP/DATA) port (rear)
- 2 x HDMI (4K@60Hz) ports (rear)
- 1 x Intel I225V 2.5GbE Ethernet port (rear)
- 1 x DC Port (20V 5A) (rear)

Imatge: Detallada view of the GMKtec M3 Mini PC's front and rear ports, including USB, HDMI, Ethernet, and power input.
Xarxa avançada
Experience faster and more stable network connections with:
- Wi-Fi 6: Provides higher bandwidth, lower latency, and wider coverage compared to Wi-Fi 5.
- 2.5Gbps Ethernet: Offers significantly faster read-write and transmission speeds for wired connections.

Image: Diagram illustrating the speed and coverage benefits of Wi-Fi 6 compared to Wi-Fi 5.

Image: Visual representation of the 2.5Gbps LAN port and its read-write and transmission speeds.
4. Configuració
Connecting Your Mini PC
- Connexió d'alimentació: Connect the power adapter to the DC port on the rear of the Mini PC and then to a power outlet.
- Connexió de visualització: Connect your monitor(s) to the HDMI ports or the USB Type-C port using the provided HDMI cable or a compatible Type-C to display cable. The Mini PC supports up to three 4K displays simultaneously.
- Perifèrics: Connect your keyboard, mouse, and other USB devices to the available USB 3.2 or USB 2.0 ports.
- Connexió de xarxa: For a wired connection, connect an Ethernet cable from your router or modem to the 2.5GbE LAN port. For wireless, ensure your Wi-Fi network is active.

Image: Illustration of the GMKtec M3 Mini PC connected to three external monitors for a triple screen display setup.
Instal·lació de muntatge VESA
The GMKtec M3 Mini PC comes with a VESA mount, allowing you to attach it to the back of a compatible monitor or to a wall, saving desk space.
- Attach the VESA mount bracket to the back of your monitor or desired surface using the provided screws.
- Feu lliscar el Mini PC sobre el suport muntat fins que encaixi fermament al seu lloc.

Image: Depiction of the GMKtec M3 Mini PC in both desktop placement and VESA mount installation configurations.
5. Instruccions de funcionament
Encès/Apagat
- Per encendre: Press the power button located on the front of the Mini PC. The power indicator light will illuminate.
- Per apagar: For Windows, click the Start button, then Power > Shut down. Alternatively, press and hold the power button for 4-5 seconds to force a shutdown (use only when necessary).
Initial Setup (Windows 11 Pro)
Upon first boot, follow the on-screen prompts to complete the Windows 11 Pro setup, including region, keyboard layout, network connection, and user account creation.
BIOS Access
To access the BIOS settings, power on the Mini PC and repeatedly press the DEL key on your keyboard until the BIOS menu appears. This allows configuration of boot options, hardware settings, and more.
6. Manteniment i actualitzacions
Storage and Memory Upgrades
The GMKtec M3 Mini PC supports user upgrades for both RAM and storage:
- RAM: Two SO-DIMM slots support DDR4 3200MHz memory, with a maximum capacity of 64GB (2x32GB).
- SSD: The pre-installed 1TB PCIe 3.0 M.2 2280 NVMe SSD can be upgraded to a maximum of 2TB. An additional M.2 2242 SATA slot is available for further storage expansion up to 2TB.
To perform upgrades, carefully remove the screws and the bottom cover of the Mini PC. Refer to the internal layout diagram for component locations.

Image: Diagram showing how to remove the bottom cover and access the SO-DIMM RAM slots and M.2 NVMe SSD slot for DIY upgrades.
Sistema de refrigeració
The Mini PC features an efficient cooling system with superconducting copper twin turbine pipes and a strong cooling fan to prevent overheating and ensure stable performance.
- Ensure proper airflow around the device by keeping vents clear of obstructions.
- Regularly clean dust from the exterior vents using compressed air to maintain optimal cooling performance.

Imatge: Explosió view highlighting the strong cooling fan and heat dissipation components within the GMKtec M3 Mini PC.
7. Solució De Problemes
If you encounter issues with your GMKtec M3 Mini PC, please refer to the following common troubleshooting steps:
- Sense energia: Ensure the power adapter is securely connected to both the Mini PC and a working power outlet. Try a different outlet if available.
- Sense pantalla: Verify that the HDMI or USB Type-C cable is firmly connected to both the Mini PC and the monitor. Check that the monitor is powered on and set to the correct input source. Try a different cable or monitor if possible.
- Sense connexió a Internet: For wired connections, ensure the Ethernet cable is properly connected and your router/modem is working. For Wi-Fi, check if Wi-Fi is enabled in the operating system and that you are connected to the correct network with the correct password.
- El sistema no respon: If the system freezes, press and hold the power button for 4-5 seconds to force a shutdown, then restart the device.
- Perifèric no detectat: Try connecting the peripheral to a different USB port. Ensure drivers are installed if required by the peripheral.
For persistent issues, please contact GMKtec support as detailed in the Warranty & Support section.
8. Especificacions
Detailed technical specifications for the GMKtec M3 Mini PC:
| Característica | Especificació |
|---|---|
| Processador | Intel Core i5-12450H (4.4 GHz max turbo frequency, 8 Cores, 12 Threads) |
| RAM | 32GB DDR4 (2x16GB) |
| Tipus de memòria | DRAM GDR |
| Ranures de memòria disponibles | 2 (SO-DIMM) |
| Disc dur | 1TB Dual SSD PCIe 3.0 M.2 2280 / M.2 2242 SATA |
| Interfície de disc dur | PCIE x 16 |
| Coprocessador gràfic | Intel Iris Xe Graphics G7 96EU GPU / Intel UHD Graphics 1.20 GHz |
| Descripció de la targeta | Integrat |
| Resolució de pantalla màxima | 5120 x 2880 píxels |
| Tipus sense fil | 2.4 GHz / 5 GHz / 5.8 GHz Radio Frequency, 802.11a/b/g/n/ac, Bluetooth 5.2 |
| Nombre de ports USB 2.0 | 2 |
| Nombre de ports USB 3.0 | 4 |
| Sistema operatiu | Windows 11 Pro, Compatible with Ubuntu and Linux |
| Pes de l'article | 2.86 lliures |
| Dimensions del producte | 5.2 x 4.92 x 2.28 polzades |
| Color | Negre |
9. Garantia i Suport
GMKtec is committed to providing reliable products and professional after-sales service.
Informació de la garantia
GMKtec offers a 1-year limited warranty for each Mini PC, effective from the date of purchase. This warranty covers defects due to design and workmanship.
Atenció al client
For any inquiries, technical assistance, or warranty claims, please contact GMKtec support:
- Suport per correu electrònic: Envieu un correu electrònic a support@gmktec.com. Our after-sales team is available 24/7.
- Suport d'Amazon: For purchases made on Amazon, you can contact us through your Amazon account. Navigate to "Your Orders," find your purchase, and select "Ask Product Question."

Image: Information on how to contact GMKtec for support via email and Amazon.





