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Green extended ATX server motherboard with 24 DDR5 slots and multiple PCIe x16 slots

GIGABYTE

GIGABYTE MZ33-AR0 server motherboard SP5 24 DDR5 12-channel

SKU CH-JDVR-GK800 MPN MZ33-AR0

Server motherboard for single AMD EPYC 9004/9005 processors with 24 DDR5 slots in 12-channel configuration, four PCIe 5.0 x16 slots, seven MCIO connectors, dual 10GbE LAN and dedicated management port

  • CPU Socket TypeSocket SP5
  • CPU TypeAMD EPYC 9004 Series / AMD EPYC 9005 Series
  • Number of Processor Support1
  • CPU FeaturesSingle processor, cTDP up to 400W
  • Memory Slots24 x DDR5 288-pin
  • Memory StandardDDR5 4800

Model MZ33-AR0

  • MBD-H13SSL-N-O
  • MBD-H13SSL-NT-O
  • MZ33-AR0
  • MZ33-AR1

Struck-through versions exist but are not stocked here.

  • Supports AMD EPYC 9004 and 9005 series processors with up to 400W cTDP
  • 24 DDR5 DIMM slots deliver 12-channel memory bandwidth at 4800 MT/s
  • Four PCIe 5.0 x16 slots enable high-throughput accelerator and GPU configurations
  • Dual 10Gbps BASE-T LAN plus dedicated management port for resilient connectivity
  • Seven MCIO 8i connectors provide up to 16 SATA 6Gb/s or Gen5 NVMe devices

Server motherboard for AMD EPYC 9004

The GIGABYTE MZ33-AR0 is an Extended ATX server board built around the SP5 socket for single AMD EPYC 9004 or 9005 series processors with a cTDP up to 400W. It targets data-centre and high-performance computing deployments that need maximum memory capacity and PCIe 5.0 connectivity in a single-socket platform.

12-channel DDR5 and 400W CPU thermal envelope

The board provides 24 DDR5 288-pin registered DIMM slots organised across 12 memory channels running at 4800 MT/s, enabling very large memory footprints for memory-bound workloads. Power delivery uses one 24-pin ATX, two 8-pin and one 6-pin ATX 12V connectors to support the 400W processor thermal design, while one CPU and five system fan headers allow active cooling management.

Seven MCIO 8i connectors for Gen5 NVMe and SATA

Seven MCIO 8i ports deliver a mix of PCIe Gen5 x8 and Gen4 x8 lanes plus SATA, supporting up to 16 SATA 6Gb/s devices alongside Gen5 NVMe storage. A single M.2 slot accepts 2280 or 22110 modules at PCIe Gen4 x4. Dual 10Gbps BASE-T LAN ports driven by Broadcom BCM57416 and a dedicated management LAN port handle high-throughput and out-of-band administration traffic.

Highlights

  • Supports AMD EPYC 9004 and 9005 series processors with up to 400W cTDP
  • 24 DDR5 DIMM slots deliver 12-channel memory bandwidth at 4800 MT/s
  • Four PCIe 5.0 x16 slots enable high-throughput accelerator and GPU configurations
  • Dual 10Gbps BASE-T LAN plus dedicated management port for resilient connectivity
  • Seven MCIO 8i connectors provide up to 16 SATA 6Gb/s or Gen5 NVMe devices

Specifications

BrandGIGABYTE
ModelMZ33-AR0
CPU Socket TypeSocket SP5
CPU TypeAMD EPYC 9004 Series / AMD EPYC 9005 Series
Number of Processor Support1
CPU FeaturesSingle processor, cTDP up to 400W
Memory Slots24 x DDR5 288-pin
Memory StandardDDR5 4800
Channel Supported12-Channel
RegisteredYes
PCI Express 5.0 x16Slot_7: PCIe x16 (Gen5 x16)
Slot_6: PCIe x16 (Gen5 x16)
Slot_4: PCIe x16 (Gen5 x16)
Slot_3: PCIe x16 (Gen5 x16)
Other Slots2 x MCIO 8i (PCIe Gen5 x8 or SATA)
4 x MCIO 8i (PCIe Gen5 x8)
1 x MCIO 8i (PCIe Gen4 x8)
M.21 x M.2 (2280/22110), PCIe Gen4 x4
LAN ChipsetBroadcom BCM57416
LAN Speed10Gbps
Max LAN Speed2 x 10Gbps
Back I/O Ports2 x USB 3.2 Gen1 ports (Type-A)
1 x VGA port
1 x COM port
2 x RJ45 ports
1 x MLAN port
1 x ID button with LED
Onboard USB1 x USB 3.2 Gen1 x2 header
Other Connectors1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
1 x 6-pin ATX 12V power connector
1 x CPU fan header
5 x System fan headers
1 x M.2 slot
7 x MCIO 8i connectors
1 x Front panel header
1 x Backplane board header
1 x PMBus connector
1 x IPMB connector
1 x TPM header
Form FactorExtended ATX
Dimensions (W x L)12" x 13"
Package Contents1 x MZ33-AR0
1 x I/O shield
1 x Quick start guide
1 x MCIO 8i to 8 x SATA 6Gb/s cable (600mm)
Shipping weight1.70 kg
Package size356 × 330 × 76 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the AMD EPYC 9004 series processor into the SP5 socket on this board, and what step is often missed?

Align the processor triangle with the socket corner marker, lower the carrier frame, then torque the captive screws in a diagonal sequence to the specified pressure; skipping the diagonal tightening order can leave uneven contact.

What maintenance will the MZ33-AR0 need during its service life?

The five system fan headers and single CPU fan header drive cooling fans that typically wear out before the board; the CMOS battery also needs periodic replacement.

What limit appears first when the MZ33-AR0 runs sustained heavy workloads?

The single processor socket supports a cTDP up to 400 W, so the VRM thermal ceiling and the 24 DDR5 slots running at 4800 MT/s become the first bottlenecks under continuous load.

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