GMKtec K15 AI Mini PC User Manual: Intel Ultra 5 125U

1. Introduction

Thank you for choosing the GMKtec K15 AI Mini PC. This manual provides essential information to help you set up, operate, and maintain your new mini PC. The K15 is a compact yet powerful desktop computer designed for a wide range of tasks, from everyday computing to demanding AI applications and video editing.

Figure 1: GMKtec K15 AI Mini PC, a compact and powerful desktop solution.

2. Setup

2.1. Initial Connection

1. Connect Peripherals: Plug in your USB keyboard and mouse to the available USB-A ports on the front or rear of the device.
2. Connect Display: Connect your monitor(s) using the HDMI 2.1, DisplayPort 1.4, or USB4 Type-C ports. The K15 supports up to four 4K/8K displays simultaneously.
3. Power Connection: Connect the power adapter to the DC IN port on the rear of the mini PC, then plug it into a power outlet.
4. Power On: Press the power button on the front panel to start the mini PC.

2.2. Operating System Setup

The GMKtec K15 comes with Windows 11 Pro pre-installed. Follow the on-screen instructions to complete the initial setup, including language selection, network configuration, and user account creation.

2.3. Network Connectivity

• Wi-Fi: The K15 features built-in Wi-Fi 6E for high-speed wireless internet access. During Windows setup, you will be prompted to connect to a Wi-Fi network.
• Ethernet: For a stable wired connection, use the dual 2.5GbE LAN ports on the rear. Connect an Ethernet cable from your router or modem to either LAN port.
• Bluetooth: Bluetooth 5.2 is integrated for connecting wireless peripherals such as headphones, speakers, or game controllers.

Figure 2: Front and rear panel input/output ports for connecting peripherals and displays.

3. Operating the GMKtec K15

3.1. Processor and Performance

The K15 is powered by an Intel Core Ultra 5 125U processor, featuring 12 cores and 14 threads, with a boost frequency of up to 4.3 GHz. This processor is designed for efficient performance across various tasks.

Figure 3: Key features of the Intel Core Ultra 5 125U processor.

3.2. AI Boost with Dedicated NPU

Leverage the integrated Intel AI Boost with a dedicated NPU, offering 11 TOPS of AI power. This enhances performance for AI-driven applications, video editing, voice assistants, and other smart computing tasks, reducing CPU load and improving efficiency.

Figure 4: Visual representation of Intel AI Boost capabilities.

3.3. Graphics Performance

The K15 utilizes Intel Graphics GPU with 1.85GHz speed and 7 TOPS of AI power, providing smooth visuals for general use, video playback, and light gaming. For more demanding graphical applications or high-end gaming, consider utilizing the Oculink port for an external GPU.

Figure 5: Overview of Intel Graphics GPU capabilities.

3.4. BIOS Performance Settings

The K15 offers three BIOS settings to manage performance and fan noise:

• Performance Mode: Maximizes CPU and GPU performance, suitable for demanding tasks.
• Balanced Mode: Adjusts performance dynamically to balance power consumption and noise.
• Quiet Mode: Prioritizes low noise operation, ideal for light tasks and silent environments.

These settings can be accessed and configured in the system's BIOS.

4. Maintenance and Upgrades

4.1. Memory (RAM) Upgrade

The K15 comes with 32GB DDR5 5600MHz RAM. It supports up to 96GB DDR5 5600MHz via dual SO-DIMM slots. To upgrade, carefully open the chassis, locate the SO-DIMM slots, and replace or add memory modules.

4.2. Storage Expansion

The mini PC includes a 512GB PCIe 4.0 SSD. It features three M.2 2280 expansion slots, each capable of supporting up to 8TB, for a maximum total storage of 24TB. This allows for significant storage upgrades.

Figure 6: Internal view showing M.2 SSD slots and DDR5 RAM for easy upgrades.

4.3. Cooling System

The K15 is equipped with dual cooling fans, advanced heatpipes, and 360° airflow to ensure efficient cooling. The fan control button allows you to cycle through 13 dazzling RGB lighting modes and switch lighting on/off by holding for 2 seconds. The system is designed to remain quiet, even under heavy loads (approx. 35dB in Quiet Mode).

Figure 7: The fan mode button on the top panel controls RGB lighting and fan behavior.

5. Troubleshooting

5.1. Performance Issues

If you experience slower performance, ensure the mini PC is set to Performance Mode in the BIOS settings. Check for background applications consuming resources and ensure all drivers are up to date.

5.2. Sleep Mode Behavior

Some users may experience issues with the PC entering sleep mode unexpectedly or not adhering to Windows power settings. If this occurs, access the BIOS settings and adjust power management options. Disabling certain sleep functionalities in the BIOS may resolve this for specific use cases, such as server operation.

5.3. Display Issues

If a monitor is not detected, ensure all display cables (HDMI, DisplayPort, USB-C) are securely connected. Try connecting one monitor at a time to isolate the issue. Verify that the monitor is set to the correct input source.

5.4. Network Connectivity Problems

For Wi-Fi issues, try restarting your router and the mini PC. Ensure the Wi-Fi 6E drivers are installed correctly. For Ethernet, check cable connections and verify router settings. The dual 2.5GbE ports provide redundancy and high-speed options.

6. Specifications

7. Warranty and Support

7.1. Warranty Information

GMKtec offers a 1-year limited warranty for the K15 AI Mini PC, effective from the date of purchase. This warranty covers defects due to design and workmanship. Please retain your proof of purchase for warranty claims.

7.2. Customer Support

For technical assistance, troubleshooting, or warranty inquiries, please contact the GMKtec professional after-sales team. Refer to the contact information provided in your product packaging or visit the official GMKtec website for support resources.

8. Official Product Video