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GIGABYTE

GIGABYTE B550M AORUS ELITE AX AMD motherboard

SKU CH-CARQ-3S748 MPN B550M AORUS ELITE AX

Micro-ATX AM4 board with four DDR4 slots, dual M.2 connectors, PCIe 4.0 x16 and Realtek GbE LAN

  • CPU Socket TypeAM4
  • CPU TypeRyzen 3000G Series / Ryzen 4000G Series / Ryzen 5000 Series
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 3200
  • Maximum Memory Supported128GB
  • Supports Ryzen 3000 to 5000 series processors with AM4 socket
  • Dual-channel DDR4 3200 memory up to 128 GB capacity
  • 5+3 phase digital VRM delivers stable power to CPU
  • PCIe 4.0 x16 slot plus dual M.2 connectors for fast storage
  • RGB Fusion 2.0 and Smart Fan 5 for custom lighting and cooling

Micro-ATX AM4 board for Ryzen 3000 to 5000 builds

This Micro-ATX motherboard uses the AMD B550 chipset and an AM4 socket. It accepts Ryzen 3000, 4000 and 5000 series processors. Four DDR4 slots support up to 128 GB in dual-channel mode with XMP 2.0 profiles and ECC un-buffered modules.

Builders needing PCIe 4.0 graphics

The single PCIe 4.0 x16 slot from the CPU suits one modern graphics card. The chipset provides one M.2 connector for a PCIe 4.0 or 3.0 NVMe SSD. Realtek GbE LAN covers wired networking. Users who need multiple M.2 slots, PCIe 5.0 or integrated Wi-Fi should choose a different board.

Single PCIe 4.0 x16 slot from the CPU

The top expansion slot runs at PCIe 4.0 x16 when a Ryzen 5000 or 3000 series CPU is installed. Ryzen 4000 G-Series and 5000 G-Series processors operate the slot at PCIe 3.0 x16. This single lane-width decision determines graphics and high-speed add-in card compatibility.

Highlights

  • Supports Ryzen 3000 to 5000 series processors with AM4 socket
  • Dual-channel DDR4 3200 memory up to 128 GB capacity
  • 5+3 phase digital VRM delivers stable power to CPU
  • PCIe 4.0 x16 slot plus dual M.2 connectors for fast storage
  • RGB Fusion 2.0 and Smart Fan 5 for custom lighting and cooling

Specifications

BrandGIGABYTE
SeriesPrime
ModelB550M AORUS ELITE AX
Part NumberB550M AORUS ELITE AX
CPU Socket TypeAM4
CPU TypeRyzen 3000G Series / Ryzen 4000G Series / Ryzen 5000 Series / Ryzen 5000G Series
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 3200
Maximum Memory Supported128GB
Channel SupportedDual Channel
Memory Performance ProfileIntel XMP 2.0
ECC SupportedYes
Memory FeatureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules*
* ECC memory (ECC mode) support varies by CPU
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules
PCI Express 5.0 x161 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
AMD Ryzen 5000 Series and Ryzen 3000 Series Processors support PCIe 4.0 x16 mode
AMD Ryzen Ryzen 5000 G-Series and Ryzen 4000 G-Series 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 4.0 x161 x PCI Express 4.0 x16
PCI Express 3.0 x161 x PCI Express 3.0 x16
PCI Express 2.0 x161 x PCI Express 2.0 x16
PCI Express x161 x PCI Express x16
PCI Express x41 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
PCI Slots1 x PCI Slot
Other Slots1 x CNR
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:
AMD Ryzen 5000 Series and Ryzen 3000 Series Processors support SATA and PCIe 4.0 x4/x2 SSDs
AMD Ryzen Ryzen 5000 G-Series and Ryzen 4000 G-Series 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
Max LAN Speed1Gbps
Wireless LANWi-Fi 802.11 ax
BluetoothBluetooth 5.3
Back I/O Ports1 x PS/2 keyboard/mouse port
1 x DVI-D port
1 x HDMI port
2 x SMA antenna connectors (2T2R)
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
PS/21
COM3
Video Ports1
HDMI1 x HDMI
RJ451 x RJ45
USB 3.12 x USB 3.1
USB 3.010 x USB 3.0
USB 1.1/2.09 x USB 2.0
eSATA1 x eSATA 3Gb/s
S/PDIF Out1 x Optical, 1 x Coaxial
S/PDIF In1 x Optical, 1 x Coaxial
Game/MIDI Ports1
Audio Ports6 Ports
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
2 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
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
*All fan headers are subject to support AIO_Pump, Pump and high performance fan with the capability of delivering up to 2A/12V @ 24W.
Form FactorMicro ATX
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
FeaturesSupport 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
RGB Fusion
Smart Backup
System Information Viewer
Support for Q-Flash Plus
Support for Q-Flash
Support for Xpress Install
Package Contents1 unit
Shipping weight1.18 kg
Package size279 × 279 × 76 mm

Questions about this item

Will my Ryzen 5000 processor fit this AM4 socket?

Yes, the board supports Ryzen 5000 Series and Ryzen 5000 G-Series CPUs on the AM4 socket.

Can I run four DDR4 sticks at 3200 speed?

The board has four 288-pin slots for dual-channel DDR4 up to 3200 and a maximum of 128 GB.

Does the primary M.2 slot run at PCIe 4.0 with a Ryzen 5000 CPU?

With a Ryzen 5000 processor the top M.2 connector operates at PCIe 4.0 x4 speeds.

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