AMD B550 AORUS Motherboard

AMD Socket AM4 CPU Support

This motherboard supports AMD Socket AM4 processors, including AMD Ryzen™ 5000 Series, Ryzen™ 5000 G-Series, Ryzen™ 4000 G-Series, Ryzen™ 3000 Series, and Ryzen™ 3000 G-Series processors. For detailed compatibility, please refer to the official CPU Support List.

Chipset

Equipped with the AMD B550 chipset, this motherboard delivers robust performance and enhanced features tailored for modern AMD CPUs.

Memory Specifications

• 4 x DDR4 DIMM sockets supporting up to 128 GB of system memory (32 GB per DIMM)
• Supports DDR4 memory speeds of 2133 MHz up to 4733 MHz (overclocked)
• Dual channel memory architecture for optimal performance
• Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules* (ECC mode support varies by CPU)
• Supports non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
• Supports Extreme Memory Profile (XMP) memory modules for easy overclocking

Onboard Graphics

Integrated Graphics Processor features:

• 1 x DisplayPort supporting up to 5120×2880 @ 60 Hz with DisplayPort 1.4, HDCP 2.3, and HDR support
• 1 x HDMI port supporting up to 4096×2160 @ 60 Hz with HDMI 2.1, HDCP 2.3, and HDR support
• Maximum shared memory of 16 GB

Audio

• Realtek® ALC1200 codec
• High Definition Audio supporting 2/4/5.1/7.1 channel output
• Support for S/PDIF Out

LAN Connectivity

• Realtek® 2.5GbE LAN chip providing 2.5 Gbit/1 Gbit/100 Mbit connectivity

Expansion Slots

• 1 x PCI Express x16 slot (PCIEX16), integrated in CPU:
  • Supports PCIe 4.0 x16 mode with AMD Ryzen™ 5000 Series and Ryzen™ 3000 Series Processors
  • Supports PCIe 3.0 x16 mode with AMD Ryzen™ 5000 G-Series/4000 G-Series/3000 G-Series Processors
  • For optimum performance, install single graphics card here
• 1 x PCI Express x16 slot (PCIEX2), integrated in chipset, supporting PCIe 3.0 x2 mode
• 1 x PCI Express x16 slot (PCIEX1_2), integrated in chipset, supporting PCIe 3.0 x1 mode
• 1 x PCI Express x1 slot (PCIEX1_1), integrated in chipset, supporting PCIe 3.0 x1 mode

Storage Interface

• 2 x M.2 connectors (M2A_CPU & M2B_SB) supporting Socket 3, M key SSDs of types 2242/2260/2280/22110:
  • M2A_CPU supports SATA and PCIe 4.0 x4/x2 SSDs (Ryzen 5000/3000 Series Processors)
  • M2A_CPU supports SATA and PCIe 3.0 x4/x2 SSDs (Ryzen 5000 G-Series/4000 G-Series/3000 G-Series Processors)
  • M2B_SB supports SATA and PCIe 3.0 x4/x2 SSDs
• 4 x SATA 6Gb/s connectors with RAID 0, RAID 1, and RAID 10 support

USB Ports

• CPU-based USB:
  • Two USB 3.2 Gen 2 Type-A ports (red) on back panel for Ryzen 5000/3000 Series
  • Two USB 3.2 Gen 1 ports (red) on back panel for Ryzen 5000 G-Series/4000 G-Series/3000 G-Series
  • 2 x USB 3.2 Gen 1 ports on back panel
• Chipset-based USB:
  • 1 x USB Type-C™ port (USB 3.2 Gen 1) via internal USB header
  • 1 x USB 3.2 Gen 1 port on back panel
  • 2 x USB 3.2 Gen 1 ports via internal USB header
  • 2 x USB 2.0/1.1 ports on back panel
  • 4 x USB 2.0/1.1 ports available via internal headers

Internal I/O Connectors

• 1 x 24-pin ATX main power connector
• 1 x 8-pin ATX 12V power connector
• 2 x M.2 Socket 3 connectors
• 4 x SATA 6Gb/s connectors
• 1 x CPU fan header and 1 x water cooling CPU fan header
• 3 x system fan headers
• 1 x CPU cooler LED strip/RGB LED strip header
• 2 x addressable LED strip headers and 2 x RGB LED strip headers
• 1 x front panel header and 1 x front panel audio header
• 1 x USB Type-C™ port header (USB 3.2 Gen 1 support)
• 1 x USB 3.2 Gen 1 header and 2 x USB 2.0/1.1 headers
• 1 x Trusted Platform Module (TPM) header (2×6 pin, compatible with GC-TPM2.0_S module)
• 1 x Clear CMOS jumper

Note: All fan headers support AIO_Pump, Pump, and high performance fans capable of delivering up to 2A/12V @ 24W.

Back Panel Connectors

• 1 x DisplayPort
• 1 x HDMI port
• 2 x USB 3.2 Gen 2 Type-A/USB 3.2 Gen 1 ports (red) – only for Ryzen 5000/3000 Series
• 3 x USB 3.2 Gen 1 ports
• 2 x USB 2.0/1.1 ports
• 1 x Q-Flash Plus button for easy BIOS update
• 1 x RJ-45 LAN port
• 1 x Optical S/PDIF Out connector
• 5 x Audio jacks

I/O Controller & Hardware Monitoring

• iTE® I/O Controller Chip
• Voltage, temperature, fan speed, and water cooling flow rate detection
• Overheating warning and fan fail warning
• Fan speed control (depends on installed fan)

BIOS

• 256 Mbit flash memory
• Licensed AMI UEFI BIOS
• Supports PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

Unique Features & Software Support

• Supports GIGABYTE APP Center with applications like @BIOS, EasyTune, RGB Fusion, Smart Backup, and System Information Viewer
• Supports Q-Flash and Q-Flash Plus for BIOS updates without CPU or memory installed
• Bundled Norton® Internet Security (OEM version) and LAN bandwidth management software

Operating System Compatibility

Supports Windows 11 64-bit and Windows 10 64-bit. For Linux, please download drivers from chipset vendors or third-party websites. Support for legacy Windows versions (Win9X/ME/2000/XP) is limited.

Form Factor

ATX Form Factor measuring 30.5 cm x 24.4 cm, suitable for a wide range of PC cases.