1. Introdución
This manual provides detailed instructions for the installation, operation, and maintenance of your GIGABYTE B550M DS3H AC R2 motherboard. This micro-ATX motherboard is designed to support AMD Ryzen 5000, 4000, and 3000 series CPUs on the AM4 socket, offering a robust platform for various computing needs. Please read this manual thoroughly before beginning installation to ensure proper setup and functionality.

Figura 1.1: De arriba abaixo view of the GIGABYTE B550M DS3H AC R2 Motherboard, showcasing its layout including the CPU socket, DIMM slots, and various connectors.
2. Características clave
- Chipset AMD B550: Supports AMD Ryzen 5000, 4000, and 3000 series CPUs with AM4 socket.
- High-Speed DDR4 Memory: Dual-channel support for up to 4733MHz (O.C.) across 4 DIMM slots.
- Advanced Storage Options: Includes one PCIe 4.0 M.2 slot and one PCIe 3.0 M.2 slot, alongside PCIe slots for graphics and expansion.
- Conectividade integrada: Features Wi-Fi 5, Bluetooth 5.0, and 1GbE LAN for reliable network connections.
- Flexible Display Outputs: Equipped with HDMI and DisplayPort for multi-monitor configurations.
- Sistema de refrixeración intelixente: Smart Fan 6 with multiple temperature sensors ensures efficient thermal management.
- Q-Flash Plus: Allows BIOS updates without the need for CPU, memory, or graphics card installation.
3. Configuración e instalación
3.1 Instalación da CPU
- Asegúrate de que a panca do socket da CPU estea na posición aberta.
- Carefully align the triangular mark on the AMD Ryzen CPU with the mark on the AM4 socket.
- Coloque a CPU no socket con coidado sen forzala.
- Baixa a panca para fixar a CPU no seu lugar.
- Instala o refrigerador da CPU segundo as instrucións do fabricante.
3.2 Instalación da memoria (RAM)
- Abra os clips nos dous extremos das ranuras DIMM.
- Aliñe a muesca do módulo de memoria DDR4 coa chave da ranura DIMM.
- Insert the memory module firmly until the clips snap into place. For dual-channel operation, refer to the motherboard manual for recommended slot configurations.
3.3 Instalación do dispositivo de almacenamento
This motherboard supports both M.2 NVMe SSDs and SATA drives.
- SSD M.2: Locate the M.2 slots (one PCIe 4.0, one PCIe 3.0). Insert the M.2 SSD at an angle and secure it with the provided screw.
- Unidades SATA: Connect SATA data cables from your SSDs/HDDs to the SATA ports on the motherboard. Connect power cables from your power supply to the drives.
3.4 Instalación da tarxeta de expansión
Install your graphics card or other PCIe expansion cards into the appropriate PCIe slots. Ensure they are seated firmly and secured with the case screw.
3.5 Conexións de enerxía
- Conecta o conector de alimentación principal ATX de 24 pines da fonte de alimentación á placa base.
- Connect the 8-pin ATX 12V CPU power connector to the motherboard.
3.6 Panel de E/S traseiroview

Figure 3.1: The rear I/O panel of the GIGABYTE B550M DS3H AC R2 motherboard, showing various ports including USB, HDMI, DisplayPort, LAN, and audio jacks.
The rear I/O panel provides connectivity for external devices. It includes USB 2.0, USB 3.2 Gen 1, HDMI, DisplayPort, 1GbE LAN, Wi-Fi antenna connectors, and audio jacks. Refer to the detailed diagram in the physical manual for specific port identification.
4. Instrucións de funcionamento
4.1 Configuración da BIOS
The BIOS (Basic Input/Output System) is firmware that initializes hardware during the booting process. To enter BIOS Setup, press the DEL key during the Power-On Self-Test (POST). Here you can configure system settings, boot order, and monitor hardware status.
4.2 Q-Flash Plus
Q-Flash Plus allows you to update the BIOS without installing the CPU, memory, or graphics card. Simply download the latest BIOS file de GIGABYTE websitio, renoméao a GIGABYTE.bin, gárdao nunha unidade flash USB e insíreo no porto USB Q-Flash Plus designado. Preme o botón Q-Flash Plus para iniciar a actualización.
4.3 Instalación do controlador
After installing your operating system, install the necessary drivers for the motherboard chipset, audio, LAN, Wi-Fi, and other integrated components. These drivers are typically provided on a support DVD or can be downloaded from the official GIGABYTE websitio.
5. Mantemento
5.1 Limpeza
Limpa o interior do teu ordenador con regularidade para evitar a acumulación de po, que pode provocar un sobrequecemento e unha redución do rendemento. Usa aire comprimido para eliminar o po dos compoñentes, especialmente dos disipadores de calor e dos ventiladores. Asegúrate de que o sistema estea apagado e desconectado antes de limpalo.
5.2 Actualizacións da BIOS
Comprobe periodicamente o GIGABYTE website for BIOS updates. Updates can improve system stability, add support for new hardware, or fix known issues. Follow the instructions provided by GIGABYTE carefully when performing a BIOS update.
5.3 Ventilador intelixente 6
Utilize the Smart Fan 6 utility in the BIOS or GIGABYTE's software to monitor system temperatures and adjust fan speeds. Proper fan configuration helps maintain optimal operating temperatures and extends component lifespan.
6 Solución de problemas
- O sistema non se pode iniciar: Check all power connections (24-pin ATX, 8-pin CPU), ensure RAM modules are properly seated, and verify the CPU is correctly installed. Try clearing the CMOS.
- Sen saída de visualización: Confirm the graphics card is fully seated in its PCIe slot and connected to power (if required). Ensure your monitor cable is connected to the graphics card, not the motherboard's integrated graphics ports (unless using an APU).
- Problemas periféricos: If USB devices or other peripherals are not working, ensure drivers are installed and check BIOS settings for port enablement.
- Inestabilidade/fallos do sistema: This can be caused by outdated drivers, overheating, or faulty hardware. Update drivers, monitor temperatures, and test components individually if possible.
- Fallo de actualización da BIOS: If a BIOS update fails, use the Q-Flash Plus feature to recover the BIOS.
7. Especificacións
| Característica | Especificación |
|---|---|
| Marca | GIGABYTE |
| Nome do modelo | B550M DS3H AC R2 |
| Socket CPU | Enchufe AM4 |
| Procesadores compatibles | AMD Ryzen serie 3000, AMD Ryzen serie 4000, AMD Ryzen serie 5000 |
| Tipo de chipset | AMD B550 |
| Tecnoloxía de memoria RAM | DDR4 |
| Velocidade do reloxo da memoria | Up to 4733 MHz (O.C.) |
| Slots de memoria dispoñibles | 4 |
| Tamaño máximo da memoria RAM | 128 GB |
| Interfaz da tarxeta gráfica | PCI Express 4.0 |
| Total PCIe Ports | 1 (PCIe 4.0 x16 for GPU) + other PCIe slots |
| M.2 Ranuras | 1x PCIe 4.0 M.2, 1x PCIe 3.0 M.2 |
| Portos SATA totais | 4 |
| Conectividade sen fíos | Wi-Fi 5, Bluetooth 5.0 |
| LAN | 1 GbE LAN |
| Total de portos USB | 6 (E/S traseiras) + Conectores internos |
| Mostrar saídas | 1x HDMI, 1x DisplayPort |
| Factor de forma | Micro ATX |
| Dimensións do artigo L x W x H | 24.4L x 24.4W x 3.5H Centímetros |
| Peso do elemento | 980 gramos |
8. Información da garantía
The GIGABYTE B550M DS3H AC R2 motherboard comes with a 3-YEAR Manufacturer Warranty. Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the official GIGABYTE warranty policy available on their websitio.
9. Soporte e contacto
For technical support, driver downloads, BIOS updates, and further product information, please visit the official GIGABYTE website. You can also contact GIGABYTE customer service for assistance.
Información de contacto do fabricante:
GIGABYTE Technology (India) Pvt. Ltd.
Unit No. 807 & 808, 8th Floor, Naman Midtown B-Wing,
Elphinstone Road, Mumbai – 400013, India
For the most up-to-date contact details and support resources, please refer to the GIGABYTE official websitio: www.gigabyte.com