1. Introduction
Thank you for choosing the GMKtec M8 Mini PC. This compact and powerful computer is designed for a wide range of applications, from gaming to commercial use, leveraging the AMD Ryzen 5 PRO 6650H processor and advanced connectivity options. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device to ensure optimal performance and longevity.
For a more comprehensive guide, please refer to the official user manual PDF: GMKtec M8 User Manual (PDF).
2. Package Contents
Please check the box for the following items:
- GMKtec M8 Mini PC
- Power Adapter
- HDMI Cable
- User Manual (this document and PDF)
- Warranty Card
3. Product Overview
The GMKtec M8 Mini PC features a robust set of I/O ports for versatile connectivity. Familiarize yourself with the port layout before setup.
Front I/O Ports:
- 2 × USB 3.2 Gen2 (10Gbps)
- 1 × OCuLink (PCIe Gen4 ×4)
- 1 × USB4 (full function, supports 40Gbps / PD3.0 100W input / DP1.4 4K@60Hz)
- 1 × 3.5mm Audio Jack (CTIA standard)
- 1 × Power button (white LED indicator)
- 1 × Reset button (system reset when powered on, CMOS clear when powered off)
⚠️ Note: The OCuLink port does not support hot-plugging. Please connect/disconnect only when the system is powered off to avoid motherboard damage.
Rear I/O Ports:
- 1 × USB 3.2 Gen2 (10Gbps)
- 1 × USB 2.0 (480Mbps)
- 1 × HD-MI 2.0 (8K@60Hz)
- 1 × DisplayPort 1.4 (8K@60Hz)
- 2 × RJ45 LAN (2.5Gbps)
- 1 × DC IN (5.5/2.5mm)
- 1 × Security lock hole
4. Setup Guide
Follow these steps to set up your GMKtec M8 Mini PC:
- **Connect Peripherals**: Connect your monitor(s) to the HDMI, DisplayPort, or USB4 ports. Connect your keyboard and mouse to the available USB ports.
- **Network Connection**: For wired internet, connect an Ethernet cable to one of the 2.5G LAN ports. For wireless internet, ensure your WiFi network is available.
- **Power Connection**: Connect the power adapter to the DC IN port on the rear of the Mini PC, then plug the adapter into a power outlet.
- **Power On**: Press the power button on the front of the Mini PC. The white LED indicator will light up.
- **Initial OS Setup**: The Mini PC comes with Windows 11 Pro pre-installed. Follow the on-screen instructions to complete the initial Windows setup.
5. Operating Instructions
Performance Modes:
The GMKtec M8 offers three performance modes to suit your needs:
- **Silent Mode**: 28W TDP, ideal for quiet operation and light tasks.
- **Balanced Mode**: 35W TDP, suitable for everyday computing.
- **Performance Mode**: 40W TDP (peak 40W), for demanding applications and gaming.
These modes can typically be adjusted within the operating system's power settings or through specific GMKtec software if provided.
Display Configuration:
The Mini PC supports up to three displays simultaneously with resolutions up to 8K 60Hz. Connect monitors using the HDMI 2.0, DisplayPort 1.4, and USB4 ports. Adjust display settings within Windows to extend or duplicate your desktop.
Network Connectivity:
Utilize the dual 2.5G LAN ports for high-speed wired network connections. For wireless connectivity, the integrated WiFi 6E module provides speeds up to 2.4Gbps, offering a significant upgrade over older WiFi standards. Bluetooth 5.2 is available for connecting wireless peripherals.
6. Maintenance
Storage Expansion:
The GMKtec M8 features two M.2 2280 PCIe 4.0x4 NVMe SSD slots, supporting up to 8TB each for a total of 16TB. The primary SSD slot is located next to the WiFi module. The memory (LPDDR5 16GB) is onboard and non-removable.
To install or replace an SSD:
- Power off the Mini PC and disconnect all cables.
- Carefully open the chassis (refer to the full PDF manual for detailed instructions on accessing internal components).
- Insert the M.2 2280 SSD into an available slot and secure it.
- Close the chassis and reconnect all cables.
Cooling System:
The Mini PC is equipped with a dual-fan cooling system and dual 3D surround air intakes for optimal heat dissipation. Regular cleaning of dust from the vents is recommended to maintain efficient cooling and prolong the device's lifespan.
CMOS Reset:
The reset button on the front panel can be used for a system reset when powered on, or to clear CMOS settings when powered off. Use a thin tool to press the button if needed.
7. Troubleshooting
- **No Display**: Ensure your monitor is correctly connected to the HDMI, DisplayPort, or USB4 port. Check that the monitor is powered on and set to the correct input source.
- **OCuLink Port Issues**: Remember, the OCuLink port does not support hot-plugging. Always power off the Mini PC before connecting or disconnecting OCuLink devices to prevent damage.
- **System Unresponsive**: If the system becomes unresponsive, press and hold the power button for 5-10 seconds to force a shutdown. Then, restart the device. If issues persist, use the reset button to perform a system reset or clear CMOS.
- **Network Connectivity Problems**: Verify that Ethernet cables are securely connected or that your WiFi network is functioning correctly. Check network adapter settings in Windows.
8. Specifications
| Feature | Description |
|---|---|
| CPU | AMD Ryzen 5 PRO 6650H (6 cores / 12 threads, TSMC 6nm FinFET, 3.3GHz base, 4.5GHz max, 3MB L2 / 16MB L3 Cache, Zen 3+ architecture) |
| GPU | AMD Radeon 660M (6 cores, 1900 MHz, 2GB max capacity) |
| Memory | 16GB LPDDR5 6400MT/s (onboard, non-removable) |
| Storage | PCIe 3.0 M.2 2280 SSD (512GB / 1TB pre-installed) |
| Internal Expansion | 2 × M.2 2280 PCIe 4.0x4 slots (max 8TB each, total 16TB), supports PCIe 3.0/4.0, not compatible with SATA drives |
| Graphics Output | HDMI 2.0, DisplayPort 1.4, USB4 (triple-screen output, up to 8K resolution) |
| Networking | WiFi 6E (802.11 a/b/g/n/ac/ax RZ616, up to 2.4Gbps), Bluetooth 5.2, Dual 2.5G LAN (RTL8125BG) |
| Front I/O | 2×USB 3.2 Gen2, 1×OCuLink, 1×USB4 (full function), 1×3.5mm Audio Jack, Power Button, Reset Button |
| Rear I/O | 1×USB 3.2 Gen2, 1×USB 2.0, 1×HDMI 2.0, 1×DisplayPort 1.4, 2×RJ45 LAN, 1×DC IN, Security Lock Slot |
| Operating System | Windows 11 Pro pre-installed; supports Linux and Ubuntu |
| Dimensions | 107 × 111 × 63 mm |
| Weight | Approx. 490g (bare unit); 1.7kg (package) |
| Power Input | DC IN 20V 5A (100W) |
9. User Tips
- **Optimize Performance**: For gaming or intensive tasks, ensure the Mini PC is set to 'Performance Mode' in your operating system's power settings.
- **External GPU**: Leverage the OCuLink port for connecting an external GPU enclosure to significantly boost graphics performance for demanding games or professional applications. Remember to power off the Mini PC before connecting/disconnecting.
- **Multi-Monitor Setup**: Take advantage of the triple display support for increased productivity by connecting multiple monitors via HDMI, DisplayPort, and USB4.
- **Fast Networking**: For the best online experience, especially for gaming or 8K streaming, use the 2.5G LAN ports or ensure you have a WiFi 6E compatible router.
10. Warranty and Support
The GMKtec M8 Mini PC comes with a **one-year warranty** from the date of purchase. Please retain your proof of purchase for warranty claims.
For technical support, troubleshooting assistance beyond this manual, or warranty inquiries, please contact GMKtec customer service through their official channels. Refer to the warranty card included in your package for specific contact information.