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Micro-ATX motherboard with black PCB, silver heatsinks and four DDR4 slots

GIGABYTE

GIGABYTE B550M AORUS ELITE AX rev 1.3 AMD motherboard

SKU CH-3DVK-ASPRY

Micro-ATX AM4 board supports Ryzen 5000 and 3000 CPUs, 128 GB DDR4 3200, PCIe 4.0 x16, single M.2, GbE LAN, Wi-Fi 802.11 ax and Bluetooth 5.3

  • CPU Socket TypeAM4
  • CPU TypeRyzen 5000 Series
  • ChipsetAMD B550
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 3200
  • Maximum Memory Supported128GB
  • Supports Ryzen 5000 and 3000 series CPUs on AM4 socket
  • Dual-channel DDR4 up to 128 GB with ECC capability
  • 5+3 phase digital VRM with low RDS(on) MOSFETs for stable power
  • PCIe 4.0 x16 graphics slot plus PCIe 3.0 x4 and x1 expansion
  • Wi-Fi 802.11 ax and Bluetooth 5.3 built in

AM4 Ryzen 5000 ready micro-ATX board

The GIGABYTE B550M AORUS ELITE AX rev 1.3 fits AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series processors in an AM4 socket. Four DDR4 slots accept up to 128 GB of dual-channel memory at 3200 MT/s with ECC and non-ECC unbuffered DIMMs. A single M.2 connector takes 2242, 2260, 2280 or 22110 drives while four SATA 6Gb/s ports handle additional storage. Realtek GbE LAN, Wi-Fi 802.11 ax and Bluetooth 5.3 provide wired and wireless networking.

Straightforward installation with BIOS flashback

The micro-ATX layout aligns with standard standoffs and the 24-pin plus 8-pin power connectors sit at the usual edges. Q-Flash Plus lets you update the BIOS using only a USB stick and standby power so a new CPU can be supported before the first boot. The lone M.2 slot shares bandwidth with the chipset PCIe 3.0 x4 slot; populating both can reduce the second slot to x1 speeds. Front-panel USB 3.2 Gen 1 headers are clearly labelled but sit near the board edge where large GPU backplates may overlap.

Steady output from a 5+3 digital VRM

The 5+3 pure digital VRM uses low RDS(on) MOSFETs to deliver clean current during extended multi-core workloads without throttling. Smart Fan 5 controls multiple headers based on VRM and chipset sensors so temperatures stay stable during long compile or render sessions. PCIe 4.0 x16 from the CPU maintains full graphics bandwidth while the chipset x4 and x1 slots run at 3.0 speeds for add-in cards. RGB Fusion 2.0 drives addressable and standard LED strips for status lighting that does not affect thermal headroom.

Highlights

  • Supports Ryzen 5000 and 3000 series CPUs on AM4 socket
  • Dual-channel DDR4 up to 128 GB with ECC capability
  • 5+3 phase digital VRM with low RDS(on) MOSFETs for stable power
  • PCIe 4.0 x16 graphics slot plus PCIe 3.0 x4 and x1 expansion
  • Wi-Fi 802.11 ax and Bluetooth 5.3 built in

Specifications

BrandGIGABYTE
ModelB550M AORUS ELITE AX
CPU Socket TypeAM4
CPU TypeRyzen 5000 Series
ChipsetAMD B550
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 3200
Maximum Memory Supported128GB
Channel SupportedDual Channel
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 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
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
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

Questions about this item

How do I confirm the 5+3 digital VRM and PCIe 4.0 x16 slot are active after build?

Enter BIOS to verify CPU detection, memory runs at DDR4 3200, and the PCIEX16 slot reports PCIe 4.0 x16 with a Ryzen 5000 or 3000 series processor installed.

What ships with the board and what must I source separately?

The motherboard includes I/O shield, SATA cables, M.2 screw, Wi-Fi antennas, and manual; you must add an AM4 Ryzen CPU, DDR4 DIMMs, storage, PSU, case, and cooler.

Which M.2 form factors does the single CPU-linked slot accept?

The M2A_CPU slot supports 2242, 2260, 2280, and 22110 lengths for SATA or PCIe 4.0 x4/x2 SSDs with Ryzen 5000 or 3000 series CPUs.

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