1. Įvadas
The GMKtec K12 Mini PC is a high-performance desktop computer designed for various applications, from household use to demanding business and gaming environments. Featuring an AMD Ryzen™ 7 H 255 processor, DDR5 memory, PCIe4.0 SSD support, and advanced connectivity options like WiFi 6E and Dual 2.5G LAN, it offers a powerful and compact computing solution.
2. Pakuotės turinys
Prieš tęsdami sąranką, įsitikinkite, kad pakuotėje yra visi toliau išvardyti elementai:
- Nucbox K12 Mini PC
- Maitinimo adapteris
- VESA laikiklis su varžtais
- Vartotojo vadovas (šis dokumentas)
- HDMI kabelis

3. Sąrankos vadovas
3.1 Pradinė sąranka
- Prijunkite maitinimą: Prijunkite maitinimo adapterį prie „Mini PC“ nuolatinės srovės įvesties prievado, o tada – prie maitinimo lizdo.
- Prijungti ekraną: Use the provided HDMI cable or a DisplayPort cable to connect your monitor to the HDMI 2.1 or DP 1.4 port on the Mini PC. The device supports up to 4 screens simultaneously with 8K resolution.
- Prijunkite išorinius įrenginius: Connect your keyboard, mouse, and other USB devices to the available USB ports (USB 3.2 Gen2, USB 2.0, USB 4.0).
- Tinklo prisijungimas: For a wired connection, plug an Ethernet cable into one of the Dual 2.5G LAN ports. For wireless, ensure your WiFi 6E and Bluetooth 5.2 are enabled on the device and connect to your network/devices.
- Maitinimas: Paspauskite maitinimo mygtuką, esantį „Mini PC“ priekyje.
3.2 VESA laikiklio montavimas
The GMKtec K12 Mini PC can be mounted to the back of a compatible monitor using the included VESA mount and screws. This saves desk space and provides a clean setup.

3.3 Storage and Memory Installation (for NO RAM NO SSD NO OS models)
If you purchased the "NO RAM NO SSD NO OS" option, you must install your own memory module and hard drive, and install/activate the operating system yourself. An activation code is not provided.
The Mini PC features a disassembled design for easy upgrades. It supports:
- SSD: Three M.2 2280 SSD slots (PCIe 4.0), with a maximum capacity of 8TB per slot (total max 24TB).
- RAM: Dual-channel SO-DIMM DDR5 5600MHz slots, with a maximum capacity of 64GB per slot (total max 128GB).

4. Naudojimo instrukcijos
4.1 Maitinimo įjungimas/išjungimas
- Maitinimas: Paspauskite maitinimo mygtuką priekiniame skydelyje.
- Išjungti: Use the operating system's shutdown function. Alternatively, press and hold the power button for 5 seconds to force a shutdown (not recommended for regular use).
4.2 Ryšio prievadai
The GMKtec K12 offers a variety of ports for extensive connectivity:

- Priekiniai prievadai:
- 2 x USB 3.2 Gen2
- 1 x USB 2.0
- 1 x USB 4.0 (PD/DP/Data/charger compatible, Data only)
- 1 x 3.5 mm garso lizdas
- Maitinimo mygtukas
- CMOS atkūrimo mygtukas
- Galiniai prievadai:
- 1 x DC IN
- 1 x HDMI 2.1 (8K @ 120Hz)
- 1 x DisplayPort 1.4 (8K @ 120Hz)
- 2 x 2.5G LAN (Ethernet)
- 1 x USB 2.0
- 1 x OCuLink (PCIe Gen4x4)
Note on OCuLink Port: This interface does not support hot-plugging. Please ensure the computer is powered off before connecting or unplugging any device from the OCuLink port.
4.3 Belaidis ryšys
The Mini PC is equipped with advanced wireless capabilities:
- „Wi-Fi 6E“: Užtikrina greitesnį ir patikimesnį belaidį interneto ryšį.
- "Bluetooth 5.2": For connecting wireless peripherals such as keyboards, mice, and headphones.

4.4 Veikimo režimai
The K12 Mini PC offers three performance modes to balance power consumption, noise, and performance:
- Quiet Mode (35W TDP): Optimized for low noise and power consumption, suitable for light tasks.
- Subalansuotas režimas (54 W TDP): A good balance between performance and noise, ideal for everyday use.
- Našumo režimas (70 W TDP): Maximizes CPU and GPU performance for demanding applications and gaming.
You can switch between these modes using the Fan Color Mode Toggle Button, typically located on the side or front panel (refer to Figure 4.1).

| Režimas | Galia (TDP) | CPU (Celsius) | Triukšmas (dB) |
|---|---|---|---|
| Tyliai | 35-40W | 50 | 32-35 |
| Normal (Balanced) | 54-60W | 65 | 36-37 |
| Spektaklis | 65-70W | 75 | 39-40 |
5. Priežiūra
5.1 Valymas
- Reguliariai valykite „Mini PC“ išorę minkšta, sausa šluoste.
- Use compressed air to clear dust from ventilation openings to ensure optimal airflow and cooling.
- Prieš valydami įsitikinkite, kad prietaisas yra išjungtas ir atjungtas.
5.2 Programinės įrangos naujiniai
- Nuolat atnaujinkite savo operacinę sistemą ir tvarkykles, kad užtikrintumėte stabilumą, saugumą ir optimalų našumą.
- Check the GMKtec official website for the latest driver updates for your K12 Mini PC.
5.3 Hardware Upgrades
The K12 Mini PC is designed for easy hardware upgrades. Refer to Section 3.3 for detailed instructions on installing RAM and SSDs. Always power off and unplug the device before opening the chassis for any hardware modifications.

6. Problemų sprendimas
- Nėra galios: Įsitikinkite, kad maitinimo adapteris yra tvirtai prijungtas ir prie „Mini PC“, ir prie veikiančio maitinimo lizdo. Išbandykite kitą lizdą.
- Nėra ekrano: Check that the HDMI/DisplayPort cable is firmly connected to both the Mini PC and the monitor. Ensure the monitor is powered on and set to the correct input source.
- Našumo problemos: Verify that the Mini PC is set to the appropriate performance mode (see Section 4.4). Ensure adequate ventilation and clean any dust from the cooling vents. Close unnecessary background applications.
- Tinklo ryšio problemos: For wired connections, check the Ethernet cable and router. For wireless, ensure WiFi is enabled and you are connected to the correct network. Restart your router/modem.
- OCuLink Device Not Detected: Remember that the OCuLink port does not support hot-plugging. Ensure the Mini PC is powered off before connecting or disconnecting any OCuLink device.
- Periferinis įrenginys neveikia: Try connecting the peripheral to a different USB port. Ensure drivers are installed if required by the peripheral.
7. Specifikacijos
| Funkcija | Detalė |
|---|---|
| Procesorius | AMD Ryzen™ 7 H 255 (8 Cores, 16 Threads, Max 4.9GHz, 16MB Cache, 4nm Tech, 35-54W TDP) |
| Grafika | AMD Radeon™ 780M Graphics (2600MHz) |
| Atmintis | Dual-channel DDR5 5600MT/s SO-DIMM (Max 128GB) |
| Sandėliavimas | 3 x M.2 2280 PCIe 4.0 SSD slots (Max 8TB per slot, total 24TB) |
| Belaidis ryšys | „WiFi 6E“, „Bluetooth 5.2“ |
| Laidinis ryšys | 2 x 2.5G LAN (Ethernet) |
| Vaizdo išvestis | 1 x HDMI 2.1 (8K@120Hz), 1 x DisplayPort 1.4 (8K@120Hz), 1 x USB 4.0 (DP Alt Mode) - Supports Quad Screens 8K display |
| USB prievadai | 2 x USB 3.2 Gen2, 2 x USB 2.0, 1 x USB 4.0 (Full Featured) |
| Kiti uostai | 1 x OCuLink (PCIe Gen4x4), 1 x 3.5mm Audio Jack, DC IN, CMOS Reset |
| Operacinė sistema | Compatible with Windows 11 Pro, Linux, Ubuntu |
| Aušinimo sistema | Dual cooling fans with copper base, surround convection airflow, smart system fans, RGB lighting |
| Matmenys | 154 x 151 x 73.6 mm |
| Sertifikavimas | CE |
8. Vartotojo patarimai
- OS diegimas: If you purchased a model without pre-installed RAM, SSD, or OS, remember to install your preferred operating system (e.g., Windows 11 Pro, Linux, Ubuntu) and necessary drivers after hardware installation.
- Našumo optimizavimas: Utilize the three performance modes (Quiet, Balanced, Performance) to match your workload and environment, ensuring optimal balance between power, noise, and speed.
- External GPU: For enhanced graphics performance, consider connecting an external GPU via the OCuLink port, remembering to power off the Mini PC before connecting or disconnecting.
- Kelių ekranų sąranka: Paimk advanątage of the quad-screen support by connecting up to four monitors for increased productivity or immersive gaming.
9. Garantija ir palaikymas
GMKtec is committed to providing high-quality products. Your GMKtec K12 Mini PC is a certified original product. For any technical assistance, warranty claims, or support inquiries, please contact GMKtec customer service through their official channels. Keep your purchase receipt as proof of purchase for warranty purposes.
For information regarding product authenticity and security, please refer to the 'Certified Original' and 'Security & Privacy' policies provided by the seller or manufacturer.





