1. Giriş
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. Paket İçeriği
Kurulum işlemine başlamadan önce, lütfen aşağıda listelenen tüm öğelerin paketinizde bulunduğundan emin olun:
- Nucbox K12 Mini PC
- Güç Adaptörü
- VESA Mount with Screws
- Kullanım Kılavuzu (bu belge)
- HDMI Kablosu

3. Kurulum Kılavuzu
3.1 İlk Kurulum
- Gücü bağlayın: Plug the power adapter into the DC IN port on the Mini PC and then into a power outlet.
- Ekranı Bağla: 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.
- Çevre Birimlerini Bağlayın: Connect your keyboard, mouse, and other USB devices to the available USB ports (USB 3.2 Gen2, USB 2.0, USB 4.0).
- Ağ bağlantısı: 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.
- Güç Açık: Mini PC’nin ön tarafında bulunan güç düğmesine basın.
3.2 VESA Montajı
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).
- VERİ DEPOSU: Dual-channel SO-DIMM DDR5 5600MHz slots, with a maximum capacity of 64GB per slot (total max 128GB).

4. Kullanım Talimatları
4.1 Güç Açma/Kapatma
- Güç Açık: Ön paneldeki güç düğmesine basın.
- Kapat: 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 Bağlantı Noktaları
The GMKtec K12 offers a variety of ports for extensive connectivity:

- Ön Portlar:
- 2 adet USB 3.2 Gen2
- 1 adet USB 2.0
- 1 x USB 4.0 (PD/DP/Data/charger compatible, Data only)
- 1 x 3.5 mm Ses Jakı
- Güç Düğmesi
- CMOS Sıfırlama Düğmesi
- Arka Portlar:
- 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 adet 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 Kablosuz Bağlantı
The Mini PC is equipped with advanced wireless capabilities:
- WiFi 6E: Daha hızlı ve daha güvenilir kablosuz internet bağlantısı sağlar.
- Bluetooth 5.2: Klavye, fare ve kulaklık gibi kablosuz çevre birimlerini bağlamak için kullanılır.

4.4 Performans Modları
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.
- Balanced Mode (54W TDP): A good balance between performance and noise, ideal for everyday use.
- Performance Mode (70W 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).

| Mod | Güç (TDP) | CPU (Celsius) | Gürültü (dB) |
|---|---|---|---|
| Sessizlik | 35-40W | 50 | 32-35 |
| Normal (Balanced) | 54-60W | 65 | 36-37 |
| Performans | 65-70W | 75 | 39-40 |
5. Bakım
5.1 Temizlik
- Mini PC'nizin dışını düzenli olarak yumuşak ve kuru bir bezle temizleyin.
- Use compressed air to clear dust from ventilation openings to ensure optimal airflow and cooling.
- Temizlemeden önce cihazın kapalı ve fişinin çekilmiş olduğundan emin olun.
5.2 Yazılım Güncellemeleri
- Keep your operating system and drivers updated to ensure stability, security, and optimal performance.
- 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. Sorun Giderme
- Güç Yok: Ensure the power adapter is securely connected to both the Mini PC and a working power outlet. Try a different outlet.
- Görüntü yok: 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.
- Performans Sorunları: 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.
- Ağ Bağlantı Sorunları: 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.
- Çevresel Aygıt Çalışmıyor: Try connecting the peripheral to a different USB port. Ensure drivers are installed if required by the peripheral.
7. Özellikler
| Özellik | Detay |
|---|---|
| İşlemci | AMD Ryzen™ 7 H 255 (8 Cores, 16 Threads, Max 4.9GHz, 16MB Cache, 4nm Tech, 35-54W TDP) |
| Grafikler | AMD Radeon™ 780M Graphics (2600MHz) |
| Hafıza | Dual-channel DDR5 5600MT/s SO-DIMM (Max 128GB) |
| Depolamak | 3 x M.2 2280 PCIe 4.0 SSD slots (Max 8TB per slot, total 24TB) |
| Kablosuz Bağlantı | WiFi 6E, Bluetooth 5.2 |
| Kablolu Bağlantı | 2 x 2.5G LAN (Ethernet) |
| Video Çıkışı | 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 Bağlantı Noktaları | 2 x USB 3.2 Gen2, 2 x USB 2.0, 1 x USB 4.0 (Full Featured) |
| Diğer Limanlar | 1 x OCuLink (PCIe Gen4x4), 1 x 3.5mm Audio Jack, DC IN, CMOS Reset |
| İşletim Sistemi | Compatible with Windows 11 Pro, Linux, Ubuntu |
| Soğutma Sistemi | Dual cooling fans with copper base, surround convection airflow, smart system fans, RGB lighting |
| Boyutlar | 154x151x73.6 mm |
| Sertifikasyon | CE |
8. Kullanıcı İpuçları
- İşletim Sistemi Kurulumu: 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.
- Performans Optimizasyonu: 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.
- Çoklu Ekran Kurulumu: Avantajı yakalayıntage of the quad-screen support by connecting up to four monitors for increased productivity or immersive gaming.
9. Garanti ve Destek
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.





