1. Introdución
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your HP Pro 400 G9 Mini PC Desktop Computer. Please read this guide thoroughly to ensure proper use and to maximize the performance and longevity of your device.
2. Produto rematadoview
The HP Pro 400 G9 Mini PC is a compact and powerful desktop solution designed for business and everyday computing tasks. It features a robust design, efficient performance, and comprehensive connectivity options.
Características principais:
- Deseño compacto e duradeiro: Weighing under 3 pounds and measuring approximately 17.7 x 17.5 x 3.4 cm, this Mini PC offers a space-saving design with HP's renowned reliability.
- Rendemento eficiente: Powered by an Intel CPU (Celeron G6900T Dual-Core, 2.8 GHz) with Intel UHD Graphics for smooth multitasking and crisp visuals.
- Memoria e almacenamento de alta velocidade: Equipped with 16GB DDR5 RAM for fast response times and a 256GB PCIe M.2 SSD for quick boot-up and data handling.
- Conectividade integral: Includes USB Type-C (20Gbps), multiple USB Type-A ports (10Gbps, 5Gbps), DisplayPort 1.4, HDMI 2.1, Ethernet, Bluetooth 5.2, and WiFi 6.
- Windows 11 Pro: Pre-installed with Windows 11 Pro for enhanced productivity, intuitive navigation, and collaboration tools.
Compoñentes e portos:
Familiarize yourself with the various components and ports of your Mini PC.

Image: The HP Pro 400 G9 Mini PC, demonstrating its small form factor and front panel connections.

Image: An infographic detailing the core specifications and features of the HP Pro 400 G9 Mini PC.

Imaxe: Detallada view of the front and rear ports of the HP Pro 400 G9 Mini PC, including USB, DisplayPort, HDMI, Ethernet, and audio jacks.

Image: A visual representation of the HP Pro 400 G9 Mini PC's dimensions and weight.
3. Configuración
3.1 Desembalaxe e colocación inicial
- Carefully remove the Mini PC and all accessories (keyboard, mouse, power adapter) from the packaging.
- Choose a stable, flat surface for placement, ensuring adequate ventilation around the device.
3.2 Conexión de periféricos
- Monitor: Connect your monitor(s) to the Mini PC using the DisplayPort 1.4 or HDMI 2.1 ports. The device supports triple 4K display output.
- Teclado e rato: Connect the included USB keyboard and mouse to any available USB Type-A ports.
- Rede: For a wired connection, connect an Ethernet cable to the RJ-45 port. For wireless, ensure your WiFi network is available.
- Potencia: Connect the power adapter to the Mini PC's power connector, then plug the adapter into a power outlet.

Image: A user connecting display and peripheral cables to the back of the HP Pro 400 G9 Mini PC.
3.3 Acendido e configuración inicial
- Press the power button located on the front of the Mini PC.
- Follow the on-screen instructions to complete the Windows 11 Pro initial setup, including language, region, network connection, and user account creation.
4. Instrucións de funcionamento
4.1 Xestión de enerxía
- Encendido: Preme o botón de acendido.
- Apagar: Fai clic no botón Inicio e, a seguir, en Acendido/Apagar > Apagar.
- Reiniciar: Fai clic no botón Inicio e, a seguir, en Acendido/Apagado > Reiniciar.
- Durmir: Click the Start button, then Power > Sleep.
4.2 Conectividade de rede
- Cableado (Ethernet): Once the Ethernet cable is connected, the system should automatically detect the network.
- Sen fíos (WiFi 6): Click the network icon in the taskbar, select your desired WiFi network, enter the password, and click Connect.
- Bluetooth 5.2: To connect Bluetooth devices, go to Settings > Bluetooth & devices, and follow the pairing instructions.
4.3 Using USB and Display Ports
- Portos USB: Connect USB devices such as external drives, printers, or other peripherals to the available USB Type-A or USB Type-C ports.
- Saída de visualización: Utilize the DisplayPort and HDMI ports to connect up to three external monitors for an extended desktop experience.

Image: A user operating the HP Pro 400 G9 Mini PC in a typical office setup.
5. Mantemento
5.1 Limpeza
- Regularly clean the exterior of the Mini PC with a soft, dry, lint-free cloth.
- Use compressed air to gently clear dust from ventilation openings to prevent overheating.
- Do not use liquid cleaners directly on the device.
5.2 Actualizacións de software
- Keep your Windows 11 Pro operating system updated by regularly checking for updates via Settings > Windows Update.
- Ensure drivers for your hardware are up-to-date. HP provides driver updates on its official support websitio.
5.3 Xestión do almacenamento
- Periódicamente review e eliminar innecesarios files to free up storage space on your 256GB PCIe SSD.
- Consider using cloud storage or external drives for large files para manter un rendemento óptimo do sistema.
6 Solución de problemas
This section addresses common issues you might encounter with your HP Pro 400 G9 Mini PC.
6.1 Sen enerxía
- Asegúrate de que o adaptador de corrente estea conectado correctamente tanto ao Mini PC como a unha toma de corrente que funcione.
- Verifica que a toma de corrente funcione conectando outro dispositivo.
- Comprobe se o adaptador de corrente presenta algún dano visible.
6.2 Sen saída de pantalla
- Confirm that the monitor is powered on and the video cable (DisplayPort or HDMI) is securely connected to both the Mini PC and the monitor.
- Try connecting the monitor to a different video port on the Mini PC or using a different cable.
- Asegúrate de que estea seleccionada a fonte de entrada correcta no monitor.
6.3 Problemas de conectividade de rede
- Cablado: Check if the Ethernet cable is properly connected and if the network lights on the RJ-45 port are active. Restart your router/modem.
- Sen fíos: Verify that WiFi is enabled in Windows settings. Restart your router/modem. Ensure you are within range of your WiFi network.
6.4 Os periféricos non responden
- Try connecting the keyboard or mouse to a different USB port.
- Ensure the devices are properly connected and powered (if applicable).
- Reinicie o miniordenador.
7. Especificacións
| Característica | Especificación |
|---|---|
| Modelo | HP Pro 400 G9 Mini PC |
| Procesador | Intel Celeron G6900T (Dual-Core, 2.8 GHz) |
| RAM | 16 GB de DDR5 (4800 MHz) |
| Almacenamento | 256GB PCIe x4 SSD |
| Gráficos | Gráficos Intel UHD integrados |
| Sistema Operativo | Windows 11 Pro |
| Conectividade sen fíos | WiFi 6 (802.11ax), Bluetooth 5.2 |
| Portos (frontais) | 1x Headphone/Microphone Combo, 1x USB Type-C (20Gbps), 2x USB Type-A (10Gbps, 1 with charging) |
| Portos (traseiros) | 2x DisplayPort 1.4, 1x HDMI 2.1, 1x Ethernet (RJ-45), 3x USB Type-A (10Gbps & 5Gbps) |
| Resolución máxima de pantalla | 3840 x 2160 (4K) |
| Dimensións (LxWxH) | 19.5 x 5 x 9 inches (Product), 17.7 x 17.5 x 3.4 cm (Approximate device size) |
| Peso do elemento | 6.19 libras |
| Accesorios incluídos | Teclado, rato |
8. Garantía e soporte
8.1 Garantía do produto
Your HP Pro 400 G9 Mini PC is covered by a standard manufacturer's warranty. Please refer to the warranty card included with your product or visit the official HP websitio web para obter termos e condicións de garantía detallados específicos da súa rexión.
8.2 Soporte técnico
For technical assistance, driver downloads, or further troubleshooting not covered in this manual, please visit the official HP Support website or contact HP customer service. Have your product model number (Pro 400 G9) and serial number ready when contacting support.
Soporte HP Websitio: www.hp.com/support