1. Introducció
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 dalt a baix view of the GIGABYTE B550M DS3H AC R2 Motherboard, showcasing its layout including the CPU socket, DIMM slots, and various connectors.
2. Característiques clau
- 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.
- Connectivitat 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 refrigeració intel·ligent: 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. Configuració i instal·lació
3.1 Instal·lació de la CPU
- Assegureu-vos que la palanca del sòcol de la CPU estigui en la posició oberta.
- Carefully align the triangular mark on the AMD Ryzen CPU with the mark on the AM4 socket.
- Col·loca suaument la CPU al sòcol sense forçar-la.
- Baixeu la palanca per assegurar la CPU al seu lloc.
- Instal·leu el refrigerador de CPU segons les instruccions del fabricant.
3.2 Instal·lació de memòria (RAM)
- Obriu els clips dels dos extrems de les ranures DIMM.
- Alineeu l'osca del mòdul de memòria DDR4 amb la clau de la 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 Instal·lació del dispositiu d'emmagatzematge
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.
- Unitats 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 Instal·lació de la targeta d'expansió
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 Connexions d'alimentació
- Connecteu el connector d'alimentació principal ATX de 24 pins de la font d'alimentació a la placa base.
- Connecteu el connector d'alimentació de la CPU ATX de 8 pins i 12 V a la placa base.
3.6 Panell d'E/S posteriorview

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. Instruccions de funcionament
4.1 Configuració de la 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 website, rename it to GIGABYTE.bin, save it to a USB flash drive, and insert it into the designated Q-Flash Plus USB port. Press the Q-Flash Plus button to initiate the update.
4.3 Instal·lació del 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 weblloc.
5. Manteniment
5.1 Neteja
Regularly clean your computer's interior to prevent dust buildup, which can lead to overheating and reduced performance. Use compressed air to remove dust from components, especially heatsinks and fans. Ensure the system is powered off and unplugged before cleaning.
5.2 Actualitzacions de la BIOS
Revisa periòdicament el 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 Smart Fan 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. Solució De Problemes
- El sistema no s'inicia: 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.
- Sense sortida de pantalla: 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).
- Problemes perifèrics: If USB devices or other peripherals are not working, ensure drivers are installed and check BIOS settings for port enablement.
- Inestabilitat/Avaries del sistema: This can be caused by outdated drivers, overheating, or faulty hardware. Update drivers, monitor temperatures, and test components individually if possible.
- BIOS Update Failure: If a BIOS update fails, use the Q-Flash Plus feature to recover the BIOS.
7. Especificacions
| Característica | Especificació |
|---|---|
| Marca | GIGABYTE |
| Nom del model | B550M DS3H AC R2 |
| Socket de CPU | Presa AM4 |
| Processadors compatibles | AMD Ryzen sèrie 3000, AMD Ryzen sèrie 4000, AMD Ryzen sèrie 5000 |
| Tipus de xipset | AMD B550 |
| Tecnologia de memòria RAM | DDR4 |
| Velocitat de rellotge de memòria | Up to 4733 MHz (O.C.) |
| Ranures de memòria disponibles | 4 |
| Mida màxima de la memòria RAM | 128 GB |
| Interfície de la targeta gràfica | PCI Express 4.0 |
| Total PCIe Ports | 1 (PCIe 4.0 x16 for GPU) + other PCIe slots |
| M.2 Ranures | 1x PCIe 4.0 M.2, 1x PCIe 3.0 M.2 |
| Total SATA Ports | 4 |
| Connectivitat sense fil | Wi-Fi 5, Bluetooth 5.0 |
| LAN | LAN de 1 GbE |
| Ports USB totals | 6 (E/S posteriors) + Capçaleres internes |
| Sortides de visualització | 1x HDMI, 1x DisplayPort |
| Factor de forma | Micro ATX |
| Dimensions de l'article L x W x H | 24.4L x 24.4W x 3.5H centímetres |
| Pes de l'article | 980 grams |
8. Informació de la garantia
The GIGABYTE B550M DS3H AC R2 motherboard comes with a 3-YEAR Manufacturer WarrantySi us plau, conserveu el comprovant de compra per a reclamacions de garantia. Per conèixer els termes i condicions detallats, consulteu la política de garantia oficial de GIGABYTE disponible als seus weblloc.
9. Suport i contacte
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.
Informació de contacte del fabricant:
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 weblloc: www.gigabyte.com