1. はじめに
The GMKtec M6 Ultra is a high-performance mini PC designed for gaming, office work, and home entertainment. It features an AMD Ryzen 5 7640HS processor, 32GB DDR5 RAM, and a 512GB PCIe 3.0 SSD, offering robust performance in a compact form factor. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.
2. セットアップ
2.1 パッケージ内容
- GMKtec M6 ウルトラミニPC
- 電源アダプター
- HDMIケーブル
- ユーザーマニュアル
2.2 ミニPCの接続
- ディスプレイを接続します。 Use an HDMI, DisplayPort, or USB4 cable to connect your monitor(s) to the corresponding ports on the mini PC. The device supports triple display output up to 8K resolution.
- 周辺機器を接続します。 Plug in your keyboard, mouse, and any other USB devices into the available USB 3.2 (Gen2), USB 2.0, or USB4 ports.
- ネットワークに接続する: For a wired connection, connect an Ethernet cable to one of the two 2.5GbE RJ45 LAN ports. For wireless, ensure your WiFi network is available.
- 接続電源: Plug the power adapter into the DC power port on the mini PC, then connect it to a power outlet.
- 電源オン: ミニ PC の前面にある電源ボタンを押します。

画像: 上view of the GMKtec M6 Ultra Mini PC's comprehensive interfaces, including USB, HDMI, DisplayPort, USB4, and dual 2.5G LAN ports.
2.3 初期起動とオペレーティングシステム
The GMKtec M6 Ultra comes with Windows 11 Pro pre-installed. Upon first boot, follow the on-screen instructions to complete the initial Windows setup, including language, region, network connection, and user account creation.
3. 操作手順
3.1 パフォーマンスモード
The GMKtec M6 Ultra offers three performance modes to optimize power consumption and performance based on your needs. These modes can typically be adjusted in the BIOS settings or via a dedicated utility if provided by GMKtec.
- サイレントモード(35W TDP): Ideal for light tasks, browsing, and media consumption, prioritizing quiet operation.
- バランスモード(45W TDP): Suitable for everyday computing, office applications, and moderate multitasking, balancing performance and noise.
- パフォーマンスモード(50W TDP): Maximizes CPU and GPU performance for demanding applications, gaming, and intensive workloads.

Image: Visual representation of the three performance modes (Silent, Balanced, Performance) and their respective TDPs, illustrating usage scenarios.
3.2 表示設定
The mini PC supports up to three simultaneous displays, allowing for enhanced productivity and immersive experiences.
- USB4 ポート: Supports 8K@60Hz output.
- HDMI 2.0 ポート: Supports 4K@60Hz output.
- ディスプレイポート: Supports 8K@60Hz output.
To configure multiple displays, right-click on your desktop, select 'Display settings', and arrange your monitors as desired.

Image: A visual guide demonstrating the triple-screen output capability of the GMKtec M6 Ultra, supporting resolutions up to 8K.
3.3 ネットワーク接続
The M6 Ultra provides versatile and high-speed network options:
- デュアル 2.5GbE LAN: Two RJ45 ports for ultra-fast wired network connections, ideal for server applications or high-bandwidth tasks.
- WiFi 6: Next-generation wireless connectivity for fast, low-latency internet on 2.5G/5G bands.
- Bluetooth 5.2: For quick and stable connections to wireless peripherals like headphones, mice, and keyboards.
4. メンテナンス
4.1 RAMとSSDのアップグレード
The GMKtec M6 Ultra is designed for easy upgrades of its memory and storage components.
- ラム: Equipped with 32GB DDR5 SO-DIMM (2x16GB) in dual channel, expandable up to 128GB (2x64GB).
- SSD: Features a 512GB M.2 2280 PCIe 3.0 SSD. Supports expansion with additional M.2 2280 PCIe 4.0 SSDs up to 8TB total.
To perform upgrades, carefully open the mini PC casing. Consult the detailed instructions provided with your upgrade components or seek professional assistance if unsure.

Image: An internal diagram of the GMKtec M6 Ultra, highlighting the DDR5 SO-DIMM slots and M.2 2280 SSD slots for easy installation and disassembly.
4.2 洗浄と冷却
定期的にクリーニングすると、最適なパフォーマンスが維持され、ミニ PC の寿命が延びます。
- 外観: Wipe the exterior with a soft, dry cloth. Avoid liquid cleaners.
- 換気: Ensure the ventilation openings are clear of dust and obstructions. The mini PC features a VC (Vapor Chamber) cooling system with double turbo fans for efficient heat dissipation. Use compressed air to gently clear dust from vents if necessary.
- 環境: Operate the mini PC in a well-ventilated area to prevent overheating.
5。 トラブルシューティング
If you encounter issues with your GMKtec M6 Ultra, refer to the following common troubleshooting steps:
- 電源なし: Ensure the power adapter is securely connected to both the mini PC and a working power outlet. Try a different outlet if possible.
- 表示なし: Verify that the monitor is powered on and correctly connected to the mini PC. Try a different display cable or monitor if available. Ensure the correct input source is selected on your monitor.
- システムの不安定性/クラッシュ: Ensure the mini PC is in a well-ventilated area to prevent overheating. Check for any recent software or driver updates that might be causing conflicts. If issues persist, consider running system diagnostics or reinstalling the operating system.
- ファンの騒音: A slight fan noise is normal, especially under heavy load. If the noise is excessive or unusual, ensure ventilation openings are clear of dust. If the issue persists, contact customer support.
- Connectivity Issues (Wi-Fi/Bluetooth/LAN): Check network cable connections for LAN. For Wi-Fi and Bluetooth, ensure drivers are up to date and the devices are within range. Restart your router/modem if necessary.
For persistent issues not resolved by these steps, please refer to the Warranty & Support section for assistance.
6. 仕様
Below are the detailed technical specifications for the GMKtec M6 Ultra Mini PC:
| 特徴 | 仕様 |
|---|---|
| ブランド | GMKテック |
| モデル名 | GMKtec NUCBOX M6 Ultra |
| オペレーティング·システム | ウィンドウズ11プロ |
| CPUモデル | AMD ライゼン 5 7640HS |
| CPU速度 | 最大5GHz |
| グラフィックスコプロセッサ | Radeon 760M (Integrated) |
| RAMインストールサイズ | 32 GB DDR5 (SO-DIMM) |
| 最大RAM容量 | 128ギガバイト |
| ストレージ容量 | 512 GB SSD M.2 2280 PCIe 3.0 |
| ハードドライブインターフェース | PCI Expressのx1 |
| 接続性 | Ethernet (Dual 2.5GbE), HDMI, USB, DisplayPort, USB4 |
| ワイヤレステクノロジー | Wi-Fi 6(802.11ax)、Bluetooth 5.2 |
| ビデオ出力インターフェース | HDMI 2.0, DisplayPort, USB4 |
| 最大ディスプレイ解像度 | 7680x4320(8K) |
| USBポート合計 | 5 (3x USB 3.2 Gen2, 1x USB 2.0, 1x USB4) |
| 色 | 黒 |
7.保証とサポート
GMKtec provides comprehensive warranty and support for your mini PC.
7.1 保証情報
GMKtec offers a limited 3-year warranty for each mini PC from the date of purchase. This warranty includes:
- 1年目: Product replacement for covered defects.
- Years 2 & 3: Repair services for covered defects.
All defects related to design or manufacturing are covered under this warranty. Please retain your proof of purchase for warranty claims.
7.2 カスタマーサポート
For any questions, technical assistance, or warranty claims, please contact GMKtec customer support:
- アマゾンのサポート: Amazon アカウントにログインし、「ご注文履歴」に移動して、「製品に関する質問」を選択し、直接サポートを受けてください。
- アフターセールスチーム: メールを送信 eu-cs@gmktec.com 24時間7日のカスタマーサポート。

Image: Contact information for GMKtec Amazon Support and After-Sales Team via email.