GMKtec NucBox M8

GMKtec NucBox M8 Mini PC User Manual

Model: NucBox M8 | Brand: GMKtec

1. Introduction

This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your GMKtec NucBox M8 Mini PC. Please read this manual carefully before using the product to ensure optimal performance and longevity.

2. Package Contents

Upon opening the package, please verify that all the following items are included:

  • GMKtec NucBox M8 Mini PC Unit
  • Power Adapter and Cable
  • HDMI Cable
  • User Manual (this document)
  • VESA Mount
  • Screw Set
GMKtec NucBox M8 Mini PC package contents including the mini PC, power adapter, HDMI cable, and user manual.
Image: Contents of the GMKtec NucBox M8 Mini PC package.

3. Setup Guide

3.1 Connecting Peripherals

  1. Power Connection: Connect the power adapter to the DC input port on the Mini PC, then plug the adapter into a power outlet.
  2. Display Connection: Connect your monitor(s) to the Mini PC using the HDMI, DisplayPort 1.4, or USB4 ports. The device supports up to three simultaneous displays.
  3. Keyboard and Mouse: Connect your USB keyboard and mouse to the available USB ports.
  4. Network Connection: For wired internet, connect an Ethernet cable to one of the dual 2.5GbE LAN ports. For wireless, ensure Wi-Fi 6E is enabled in the operating system.
Front and rear view of the GMKtec NucBox M8 Mini PC showing all available ports including USB, HDMI, DisplayPort, LAN, and OCuLink.
Image: Overview of the GMKtec NucBox M8 Mini PC's front and rear ports.

3.2 Initial Power On

Press the power button located on the front of the Mini PC. The system will boot up, and you will be guided through the initial Windows 11 Pro setup process.

4. Operating Instructions

4.1 Performance Modes

The NucBox M8 features three performance modes: High Performance, Silent, and Power Saving. These modes can be switched with a single touch to optimize the PC for your current task.

  • High Performance Mode: Maximizes CPU and GPU power for demanding tasks like gaming or video editing.
  • Silent Mode: Reduces fan speed and power consumption for quiet operation during light tasks.
  • Power Saving Mode: Optimizes for minimal power usage, ideal for extended use or basic productivity.
Diagram illustrating the three performance modes (Silent, Balance, Performance) and their corresponding power consumption, CPU temperature, and noise levels.
Image: Performance modes and their impact on power, temperature, and noise.

4.2 Multi-Display Setup

The NucBox M8 supports simultaneous output to up to three displays, enhancing productivity for various tasks.

  • Connect displays to the HDMI 2.0, DisplayPort 1.4, and USB4 (Type-C) ports.
  • The system supports resolutions up to 8K@60Hz.
A person using the GMKtec NucBox M8 Mini PC with a multi-screen setup, demonstrating its capability for productivity and gaming across multiple displays.
Image: Multi-screen setup with the GMKtec NucBox M8 Mini PC.

5. Key Features

5.1 High-Speed Memory and Storage

The NucBox M8 is equipped with 16GB of high-speed LPDDR5 6400MHz memory, soldered directly to the motherboard for enhanced stability. It also features two PCIe Gen4x4 compatible M.2 2280 slots, allowing for storage expansion up to 16TB. This provides ample space for large files, applications, and games, with excellent future upgradeability.

Diagram showing LPDDR5 memory modules and a comparison of LPDDR5 speeds against older generations, highlighting 6400 MT/s.
Image: LPDDR5 6400 MT/s memory architecture.
Internal view of the Mini PC showing two PCIe 4.0 M.2 2280 slots for storage expansion.
Image: Storage expansion options with dual PCIe 4.0 M.2 slots.

5.2 Powerful Processor and Graphics

The NucBox M8 is powered by an AMD Ryzen 5 PRO 6650H processor with 6 cores and 12 threads, paired with an RDNA2 generation Radeon 660M integrated graphics. This combination delivers robust performance for various applications, from everyday browsing and office tasks to 4K video editing, RAW image processing, and light gaming.

Diagram highlighting the AMD Ryzen 5 PRO 6650H CPU specifications: 4.5 GHz, 6 Cores, 12 Threads, 16 MB L3 Cache, and performance comparison.
Image: AMD Ryzen 5 PRO 6650H processor details and performance.
Diagram showcasing the AMD Radeon 660M graphics with example game FPS benchmarks for League of Legends, DOOM Eternal, and Warframe.
Image: AMD Radeon 660M graphics performance with game benchmarks.

5.3 Advanced Connectivity

The NucBox M8 offers versatile connectivity options:

  • OCuLink Port: Connect an external GPU (eGPU) via the front OCuLink port to transform the M8 into a desktop-class high-end machine for demanding gaming and creative tasks. Note: Hot-swapping is not supported. Power off the device before connecting or disconnecting.
  • USB4 (40Gbps): A full-featured USB4 port supports ultra-high-speed 40Gbps data transfer, 100W Power Delivery (PD) input, and DP1.4 video output. This single port can handle video, power, and data, making it ideal for professional creators and mobile offices.
  • Dual 2.5GbE LAN: Two 2.5 Gigabit Ethernet LAN ports provide 2.5 times the speed of standard wired LAN, perfect for NAS setups and high-speed file transfers.
  • Wi-Fi 6E & Bluetooth 5.2: The latest Wi-Fi 6E supports the 6GHz band for stable, less congested wireless communication, ensuring a smooth experience for online gaming, streaming, and remote work. Bluetooth 5.2 provides reliable wireless peripheral connections.
Image showing the OCuLink port on the Mini PC connected to an external GPU, demonstrating enhanced graphics capabilities.
Image: OCuLink port for external GPU connection.
Diagram illustrating the features of the USB4 port, including 40Gbps transfer speed, Power Delivery, and DisplayPort output.
Image: Full-featured USB4 port capabilities.
Image showing the dual 2.5G Ethernet ports on the GMKtec NucBox M8 Mini PC, highlighting 2500 MB/s speed.
Image: Dual 2.5GbE LAN ports for high-speed wired networking.
Diagram comparing Wi-Fi 6E and Wi-Fi 5 specifications, emphasizing Wi-Fi 6E's support for the 6GHz band and higher speeds.
Image: Wi-Fi 6E and Bluetooth 5.2 connectivity.

5.4 Efficient Cooling System

The NucBox M8 incorporates a dual-fan cooling system with superconducting copper heat pipes and a 360° circulating airflow design. This efficient cooling mechanism keeps the CPU, SSD, and memory at optimal temperatures, ensuring stable performance even under prolonged heavy loads.

Diagram illustrating the dual-fan cooling system with heat pipes and airflow design within the Mini PC.
Image: Dual-fan cooling system design.

6. Maintenance

6.1 Cleaning

  • Regularly clean the exterior of the Mini PC with a soft, dry cloth.
  • Use compressed air to clear dust from ventilation grilles and ports to maintain optimal airflow.
  • Avoid using liquid cleaners or solvents directly on the device.

6.2 Software Updates

Ensure your operating system and drivers are kept up-to-date to benefit from the latest performance enhancements and security patches. Windows Update can be configured for automatic updates.

6.3 Storage Management

Periodically check your storage usage and remove unnecessary files or applications to maintain system performance. Consider utilizing the available M.2 slots for additional storage if needed.

7. Troubleshooting

7.1 No Power

  • Check if the power adapter is securely connected to both the Mini PC and the power outlet.
  • Ensure the power outlet is functional by testing it with another device.
  • Try a different power cable if available.

7.2 No Display Output

  • Verify that the display cable (HDMI, DP, USB4) is securely connected to both the Mini PC and the monitor.
  • Ensure the monitor is powered on and set to the correct input source.
  • Test with a different display cable or monitor if possible.

7.3 Network Connectivity Issues

  • For wired connections, check the Ethernet cable and ensure it's properly connected to a working router/modem.
  • For Wi-Fi, ensure Wi-Fi is enabled in Windows settings and you are connected to the correct network. Restart your router/modem.
  • Update network drivers if necessary.

7.4 System Slowdown or Freezing

  • Close unnecessary applications running in the background.
  • Check for sufficient free storage space.
  • Monitor CPU and memory usage in Task Manager to identify resource-intensive processes.
  • Ensure the cooling system is not obstructed and is functioning correctly.

8. Specifications

FeatureSpecification
BrandGMKtec
Model NumberAMD mini pc (NucBox M8)
Operating SystemWindows 11 Pro
CPUAMD Ryzen 5 PRO 6650H
CPU Speed4.5 GHz (Max Boost)
Number of Processors6
Graphics CoprocessorRadeon 660M
Graphics Card DescriptionDedicated (Integrated)
VRAM TypeDDR5 SDRAM
Installed RAM Memory Size16 GB (LPDDR5)
Memory Speed6400 MHz
Memory Storage Capacity (SSD)512 GB (PCIe 4.0 M.2 2280)
Hard Disk InterfacePCIe x 4
Optical Storage DeviceNone
Video Output InterfacesHDMI, DisplayPort, USB4
Number of USB Ports4 (USB 3.2 x3, USB4 x1)
NetworkDual 2.5GbE LAN, Wi-Fi 6E, Bluetooth 5.2
Product Body Size19 x 11 x 19 cm
Product Use/ApplicationGaming, Business
Country of OriginChina

9. Warranty and Support

Your GMKtec NucBox M8 Mini PC comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

For technical support or warranty claims, please contact our dedicated support team. Our Japanese support team is committed to responding within 24 hours to assist you with any inquiries or issues, ensuring a smooth experience even for first-time Mini PC users.

Please retain your proof of purchase for warranty validation.

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