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Green micro ATX board with silver AM4 socket and black heatsinks

ASRock

ASRock B550M-HDV AMD motherboard

SKU CH-ANKQ-628SE MPN B550M-HDV

Micro-ATX board for AM4 Ryzen 3000 to 5000 series with PCIe 4.0 x16, Hyper M.2 Gen4, four SATA 6Gb/s and 7.1-channel audio

  • CPU Socket TypeAM4
  • CPU TypeSupports AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 30
  • ChipsetAMD B550
  • Number of Memory Slots2x288pin (DDR4)
  • Memory StandardDDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) /
  • Maximum Memory Supported64GB

Option B550M-HDV

Les versions barrées existent, mais ne sont pas disponibles ici.

  • Supports Ryzen 3000 to 5000 series processors on AM4 socket
  • Dual-channel DDR4 up to 4733 MHz overclocked with 64 GB maximum capacity
  • PCIe 4.0 x16 slot plus Hyper M.2 Gen4 x4 for high-speed NVMe storage
  • 1-channel Realtek ALC887 audio with HDMI, DVI-D and D-Sub video outputs
  • 6-phase power design and Gigabit LAN for stable performance

AM4 Micro-ATX Platform for Ryzen 5000 Series

The ASRock B550M-HDV is a micro-ATX motherboard built around the AMD B550 chipset for AM4 socket processors. It supports Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series desktop CPUs. A BIOS update may be required before installing a Zen 3 Ryzen 5000 series processor. The board targets builders who need a compact foundation for current-generation AMD performance.

Six-Phase Power and Legacy Video Outputs

A six-phase power phase design delivers smooth current to the CPU for stable operation. The rear panel provides HDMI, DVI-D and D-Sub ports, enabling video output from Ryzen G-Series APUs and compatibility with older displays. Connectivity includes four rear USB 3.2 Gen1 ports, two front-panel USB 3.2 Gen1 headers, Gigabit LAN and 7.1-channel audio driven by the Realtek ALC887 codec.

Single Hyper M.2 Slot with PCIe 4.0 x4

Storage centres on one Hyper M.2 socket accepting 2242, 2260 and 2280 modules. With Vermeer or Matisse CPUs it runs at PCIe 4.0 x4 (64 Gb/s); with Cezanne, Renoir or Picasso APUs it operates at PCIe 3.0 x4 (32 Gb/s). SATA 6.0 Gb/s M.2 drives are also supported. Four SATA 6Gb/s ports and RAID 0, 1, 10 round out the storage options.

Points forts

  • Supports Ryzen 3000 to 5000 series processors on AM4 socket
  • Dual-channel DDR4 up to 4733 MHz overclocked with 64 GB maximum capacity
  • PCIe 4.0 x16 slot plus Hyper M.2 Gen4 x4 for high-speed NVMe storage
  • 1-channel Realtek ALC887 audio with HDMI, DVI-D and D-Sub video outputs
  • 6-phase power design and Gigabit LAN for stable performance

Caractéristiques

BrandASRock
ModelB550M-HDV
CPU Socket TypeAM4
CPU TypeSupports AMD Ryzen 5000 / 5000 G-Series / 4000 G-Series / 3000 G-Series / 3000 Series Processors*
* BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASRock website for CPU support list.
ChipsetAMD B550
Number of Memory Slots2x288pin (DDR4)
Memory StandardDDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series APUs (Cezanne & Renoir) support)*
DDR4 4600+(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series CPUs (Vermeer & Matisse) support)*
DDR4 3533+(OC) / 3466(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 (
Maximum Memory Supported64GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP 2.0
ECC SupportedYes
* For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.
Buffer SupportedUn-buffered
PCI Express 4.0 x161 x PCI Express 4.0 x16
* Actual support may vary by CPU.
* Supports NVMe SSD as boot disks.
PCI Express x11 x PCI Express 3.0 x1
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x Hyper M.2 Socket, supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir and Picasso)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
SATA RAID0/1/10
Onboard Video ChipsetSupported only by CPU with integrated graphic
Audio ChipsetRealtek ALC887
Audio Channels7.1 Channels
LAN ChipsetRealtek RTL8111H
Max LAN Speed1Gbps
Back I/O Ports1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x DVI-D Port
1 x HDMI Port
2 x USB 2.0 Ports (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)
Other Connectors1 x SPI TPM Header
1 x COM Port Header
1 x Chassis Intrusion and Speaker Header
1 x CPU Fan Connector (4-pin)*
2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)**
1 x Front Panel Audio Connector
* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
** The Chassis Fan supports the water cooler fan of maximum 1A (12W) fan power.
** CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.
Form FactorMicro ATX
LED LightingNone RGB
Dimensions (W x L)9.0" x 7.9"
Power Pin1 x 24-pin ATX Power Connector
1 x 4-pin 12V Power Connector
Windows 11Supported
FeaturesUnique Feature:
ASRock Super Alloy
- Premium 50A Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
ASRock Hyper M.2 (PCIe Gen4x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
BIOS:
- 256MB AMI UEFI Legal BIOS with GUI support
- Supports "Plug and Play"
- ACPI 5.1 compliance wake up events
- Supports jumperfree
- SMBIOS 2.3 support
- CPU, CPU VDDCR_SOC, DRAM, VDDP Voltage Multi-adjustment
Software and UEFI:
Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
*
Package ContentsAccessories:
- Quick Installation Guide, Support CD, I/O Shield
- 2 x SATA Data Cables
- 1 x Screw for M.2 Socket
Poids d’expédition0.84 kg
Dimensions du colis330 × 286 × 58 mm

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Questions sur cet article

What PCIe generation does the B550M-HDV's primary x16 slot use, and what bandwidth does that cap at?

The primary slot runs at PCIe 4.0 x16, delivering up to 64 Gb/s when paired with a Vermeer or Matisse CPU. With Cezanne, Renoir or Picasso CPUs it falls back to PCIe 3.0 x16 at 32 Gb/s.

What case and cooler clearances does this micro ATX board need?

The board measures standard micro ATX dimensions. It requires a case with matching standoffs, an AM4-compatible cooler that clears the 6-phase VRM heatsink, and enough height for 288-pin DDR4 modules.

How is the BIOS updated for Ryzen 5000 support, and which step is often missed?

Download the latest BIOS from the ASRock site, copy it to a FAT32 USB drive, and use the Instant Flash utility in the UEFI. The step many miss is renaming the file exactly as the utility expects before starting the flash.

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