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Green rectangular micro-ATX motherboard with black slots and silver heatsinks

GIGABYTE

GIGABYTE B550M DS3H AC AMD motherboard

SKU CH-CN67-E6AHH

Micro ATX board for AM4 Ryzen 5000 or 3rd Gen CPUs with four DDR4 slots up to 128 GB, one PCIe 4.0 x16 slot, four SATA 6 Gb/s ports, one M.2 socket, Realtek GbE LAN and 7.1-channel audio

  • CPU Socket TypeAM4
  • CPU TypeAMD Socket AM4, support for: AMD Ryzen 5000 Series / 3rd Gen
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory Standard3rd Gen AMD Ryzen Processors: Support for DDR4 4400(O.C.)/ 4
  • Maximum Memory Supported128GB
  • Supports Ryzen 5000 series and 3rd Gen Ryzen processors on AM4 socket
  • Dual-channel DDR4 memory up to 128 GB with speeds to 4733 MHz overclocked
  • PCIe 4.0 x16 graphics slot plus PCIe 3.0 x4 and x1 expansion slots
  • Four SATA 6 Gb/s ports and one M.2 socket for 2242 to 22110 drives
  • Realtek ALC887 audio with 7.1-channel output and 1 Gbps LAN

Compact AM4 B550 platform

The GIGABYTE B550M DS3H AC is a micro ATX motherboard built on the AMD B550 chipset for AM4 socket processors. It supports Ryzen 5000 Series and 3rd Gen Ryzen CPUs, including models with Radeon graphics. Four DDR4 slots accept up to 128GB of memory in dual channel mode.

Suits first builds and upgrades

This board fits builders who need PCIe 4.0 x16 from the CPU and a single M.2 slot for 2242/2260/2280/22110 SSDs. It also provides four SATA 6Gb/s ports, Realtek GbE LAN and 7.1 channel audio from the ALC887 codec. Users requiring multiple M.2 drives or 10GbE should look at larger ATX designs.

PCIe 4.0 x16 from CPU decides fit

With a Ryzen 5000 or 3rd Gen Ryzen processor the primary PCIEX16 slot runs at PCIe 4.0 x16, giving full bandwidth to modern graphics cards. APU variants drop that link to PCIe 3.0 x16, so the CPU choice determines whether the board delivers the faster interface.

Points forts

  • Supports Ryzen 5000 series and 3rd Gen Ryzen processors on AM4 socket
  • Dual-channel DDR4 memory up to 128 GB with speeds to 4733 MHz overclocked
  • PCIe 4.0 x16 graphics slot plus PCIe 3.0 x4 and x1 expansion slots
  • Four SATA 6 Gb/s ports and one M.2 socket for 2242 to 22110 drives
  • Realtek ALC887 audio with 7.1-channel output and 1 Gbps LAN

Caractéristiques

BrandGIGABYTE
ModelB550M DS3H AC
CPU Socket TypeAM4
CPU TypeAMD Socket AM4, support for: AMD Ryzen 5000 Series / 3rd Gen Ryzen and 3rd Gen Ryzen with Radeon Graphics Processors
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory Standard3rd Gen AMD Ryzen Processors:
Support for DDR4 4400(O.C.)/ 4000(O.C.)/ 3600(O.C.)/ 3333(O.C.)/ 3200/ 2933/ 2667/ 2400/ 2133 MHz memory modules
3rd Gen AMD Ryzen with Radeon Graphics processors:
Support for DDR4 4733(O.C.)/ 4600(O.C.)/ 4400(O.C.)/ 4000(O.C.)/ 3600(O.C.)/ 3333(O.C.)/ 3200/ 2933/ 2667/ 2400/ 2133 MHz memory modules
Maximum Memory Supported128GB
Channel SupportedDual Channel
PCI Express 4.0 x161 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
3rd Generation AMD Ryzen processors support PCIe 4.0 x16 mode
3rd Generation AMD Ryzen with Radeon Graphics processors support PCIe 3.0 x16 mode
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
PCI Express 3.0 x161 x PCI Express x16 slot (PCIEX4), integrated in the Chipset:
Supporting PCIe 3.0 x4 mode
PCI Express x11 x PCI Express x1 slot (PCIEX1), integrated in the Chipset:
Supporting PCIe 3.0 x1 mode
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:
3rd Generation AMD Ryzen processors support SATA and PCIe 4.0 x4/x2 SSDs
3rd Generation AMD Ryzen with Radeon Graphics processors support SATA and PCIe 3.0 x4/x2 SSDs
1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2242/2260/2280 SSDs:
Supporting SATA and PCIe 3.0 x2 SSDs
SATA RAID0/1/10
Onboard Video ChipsetIntegrated in the 3rd Generation AMD Ryzen with Radeon Graphics processors:
1 x DVI-D port, supporting a maximum resolution of 1920x1200@60 Hz
* The DVI-D port does not support D-Sub connection by adapter.
1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* Support for HDMI 2.1 version, HDCP 2.3, and HDR.
Maximum shared memory of 16GB
Audio ChipsetRealtek ALC887
Audio Channels2/4/5.1/7.1-channel
* To configure 7.1-channel audio, you need to open the audio software and select Device advanced settings > Playback Device to change the default setting first. Please visit GIGABYTE's website for details on configuring the audio software.
LAN ChipsetRealtek GbE LAN chip
Max LAN Speed1Gbps
Wireless LANIntel Wi-Fi AC 3168
WIFI 802.11a/b/g/n/ac, supporting 2.4/5 GHz Dual-Band
Support for 11ac wireless standard and up to 433 Mbps data rate
* Actual data rate may vary depending on environment and equipment.
BluetoothBLUETOOTH 4.2
Back I/O Ports1 x PS/2 keyboard/mouse port
1 x DVI-D port
2 x SMA antenna connectors (1T1R)
1 x HDMI port
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks
Onboard USB1 x USB 3.2 Gen 1 header
1 x USB 2.0/1.1 header
Other Connectors1 x CPU fan header
2 x system fan headers
2 x addressable LED strip headers
2 x RGB LED strip headers
1 x CPU cooler LED strip/RGB LED strip header
1 x front panel header
1 x front panel audio header
1 x Trusted Platform Module (TPM) header (2x6-pin, for the GC-TPM2.0_S module only)
1 x serial port header
1 x Clear CMOS jumper
1 x Q-Flash Plus button
Form FactorMicro ATX
LED LightingRGB
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
Windows 11Supported
FeaturesI/O Controller:
iTE I/O Controller Chip
H/W Monitoring:
Voltage detection
Temperature detection
Fan speed detection
Overheating warning
Fan fail warning
Fan speed control
* Whether the fan speed control function is supported will depend on the cooler you install.
BIOS:
1 x 256 Mbit flash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features:
Support for APP Center
* Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.
@BIOS
EasyTune
F

Questions sur cet article

What are the physical dimensions and mounting hole pattern of the B550M DS3H AC?

The board follows the Micro ATX form factor with standard mounting holes for Micro ATX cases.

How is the CPU installed on the AM4 socket, and what step is often missed?

Lift the retention arm, align the gold triangle on the processor with the socket corner, place it gently without force, lower the arm, then connect the CPU fan header before first boot.

Which components on this board may need replacement over time?

The CMOS battery cell and case/CPU fans are the only serviceable parts that typically require replacement during the board's lifespan.

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