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Micro-ATX board, dark PCB with silver heatsinks, 244 by 205 mm

GIGABYTE

GIGABYTE B550M GAMING AMD motherboard

SKU CH-G9Z3-14EQ8

Micro-ATX AMD B550 board with AM4 socket, two DDR4 slots up to 64 GB, one PCIe 4.0 x16 slot, four SATA 6 Gb/s ports, one M.2 slot, Realtek ALC887 7.1 audio and gigabit LAN

  • CPU Socket TypeAM4
  • CPU TypeRyzen / Athlon Series
  • ChipsetAMD B550
  • Number of Memory Slots2x288pin (DDR4)
  • Memory StandardDDR4 3200
  • Maximum Memory Supported64GB
  • 5+3 phase digital VRM delivers clean power to Ryzen CPUs
  • DDR4 3200 support on two slots for up to 64GB system memory
  • PCIe 4.0 x16 slot plus NVMe M.2 connector for fast GPU and storage
  • Realtek 8118 1Gb LAN with surge protection keeps gaming traffic priority
  • 1-channel ALC887 audio and six USB 3.1 Gen 1 ports for peripherals

Micro ATX B550 board for Ryzen builders

This micro ATX motherboard uses the AMD B550 chipset and an AM4 socket to support Ryzen and Athlon processors. Two DDR4 DIMM slots accept up to 64 GB of memory running at 3200. A single PCI Express 4.0 x16 slot and two PCI Express x1 slots handle graphics and add-in cards, while four SATA 6 Gb/s ports and one M.2 connector provide storage options.

5+3 phase digital VRM with low RDS(on) MOSFETs

The power delivery uses a 5+3 phase pure digital PWM design with low RDS(on) MOSFETs to supply clean current to the CPU. Realtek ALC887 audio delivers 7.1 channel output through the rear panel. Networking is handled by a Realtek 8118 Gigabit LAN controller with automatic bandwidth allocation and enhanced ESD protection. Rear I/O includes HDMI, PS/2, four USB 2.0 ports and six USB 3.1 Gen 1 Type-A ports.

Check CPU cooler clearance

The board measures 244 x 205 mm, so verify that your chassis supports micro ATX dimensions and that the CPU cooler fits around the VRM heatsinks. Confirm that your M.2 drive matches the connector keying and that you have enough SATA cables for the four 6 Gb/s ports. Ensure the power supply provides the required ATX 24-pin and 8-pin EPS connectors for the digital VRM.

Punti di forza

  • 5+3 phase digital VRM delivers clean power to Ryzen CPUs
  • DDR4 3200 support on two slots for up to 64GB system memory
  • PCIe 4.0 x16 slot plus NVMe M.2 connector for fast GPU and storage
  • Realtek 8118 1Gb LAN with surge protection keeps gaming traffic priority
  • 1-channel ALC887 audio and six USB 3.1 Gen 1 ports for peripherals

Caratteristiche tecniche

BrandGIGABYTE
ModelB550M GAMING
CPU Socket TypeAM4
CPU TypeRyzen / Athlon Series
ChipsetAMD B550
Number of Memory Slots2x288pin (DDR4)
Memory StandardDDR4 3200
Maximum Memory Supported64GB
PCI Express 4.0 x161 x PCI Express 4.0 x16
PCI Express x12 x PCI Express x1
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2
Audio ChipsetRealtek ALC887
Audio Channels7.1 Channels
Max LAN Speed1Gbps
Back I/O Ports1 x HDMI / 1 x PS/2 / 4 x USB 2.0/1.1 / 6 x USB 3.1 Gen 1 Type-A
PS/21
HDMI1 x HDMI
USB 3.06 x USB 3.0
USB 1.1/2.04 x USB 2.0
Form FactorMicro ATX

Domande su questo articolo

What PCIe version does the single M.2 slot use, and what is its peak throughput?

The M.2 slot runs at PCIe 4.0 x4, delivering up to 64 Gb/s for NVMe or SATA drives.

What are the board dimensions, and which case form factors accept it?

The board measures 244 x 205 mm, so it fits any Micro-ATX or larger ATX case.

How is the M.2 drive secured, and what step do builders often miss?

Insert the drive at an angle, press it flat, then fasten the single mounting screw; forgetting the screw leaves the drive loose and can cause connection errors.

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