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Green extended ATX server motherboard with dual SP3 sockets, sixteen DDR4 slots, five PCIe x16 slots, two 10GbE ports

GIGABYTE

GIGABYTE MZ72-HB2 dual EPYC 7002/7003 server motherboard 16 DDR4 4TB

SKU CH-R831-FCZA6 MPN MZ72-HB2

Dual-socket SP3 board for AMD EPYC 7002 and 7003 CPUs with 16 DDR4-3200 slots up to 4TB, five PCIe 4.0 expansion slots, dual 10GbE LAN and multiple SATA, SAS and M.2 storage connections

  • ProcessorAMD EPYC 7002 Series / AMD EPYC 7003 Series
  • Form factorExtended ATX
  • CPU socketSocket SP3
  • Network speed10 Gbit/s
  • Supported CPU count2
  • Processor detailsDual processor, 7 nm technology Up to 64 cores, 128 threads
  • Dual EPYC 7002/7003 processors deliver up to 64 cores and 128 threads per socket
  • 16 DDR4 slots in eight-channel configuration support up to 4TB registered memory
  • Two 10Gbps LAN ports via Broadcom BCM57416 provide high-speed network connectivity
  • Five PCIe 4.0 expansion slots include three x16 and two x8 for GPU or accelerator cards
  • One M.2 slot with PCIe 4.0 x4 plus five SlimSAS connectors enable Gen4 NVMe and SATA storage

Dual-Socket EPYC Server Board

The GIGABYTE MZ72-HB2 is an Extended ATX motherboard built for dual AMD EPYC 7002 and 7003 series processors in Socket SP3. It targets high-performance computing clusters, virtualisation hosts and data-analytics nodes that need maximum core density and memory capacity in a two-socket design.

PCIe 4.0 Lane Distribution Limits

Five full-length slots provide Gen4 connectivity, but bandwidth depends on which CPU populates them. Three slots run at x16 from CPU_0 and CPU_1, while two operate at x8 from CPU_0. SlimSAS connectors add either Gen4 NVMe or SATA lanes, yet enabling NVMe requires a BIOS change that reassigns those lanes away from SATA.

4TB Eight-Channel DDR4 Ceiling

Sixteen 288-pin slots support registered DDR4-3200 modules across eight channels per socket, reaching 4TB total when fully populated with high-capacity LRDIMMs. Builds using standard RDIMMs or fewer modules will stop well short of this ceiling, so memory planning must match the target capacity from the start.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $619.99
Pricier than about 89% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameGIGABYTE
Model nameMZ72-HB2 Rev 3.x
Part number9MZ72HB2MR-00-3
Processor
ProcessorAMD EPYC 7002 Series / AMD EPYC 7003 Series
CPU socketSocket SP3
Supported CPU count2
Processor detailsDual processor, 7 nm technology
Up to 64 cores, 128 threads per processor
TDP up to 280 W
Memory
DDR4 memory supportDDR4 3200
Max supported RAM4 TB
Memory channelsEight Channel
Storage
SATA portsCPU_0: 4 x SATA 6Gb/s ports
CPU_1: 12 x SATA 6Gb/s
M.2 slots1 x M.2 slot:
- M-key
- PCIe Gen4 x4, from CPU_0
- Supports 2280/22110 cards
Graphics
Onboard video chipAspeed AST2600
Connectivity
Network speed10 Gbit/s
Ethernet controllerBroadcom BCM57416
Maximum network speed2 × 10 Gbit/s
Ports & slots
Number of DDR4 slots16 × 288-pin
PCIe 4.0 x16 slotsSlot_6: PCIe x16 (Gen4 x16) slot, from CPU_0
Slot_4: PCIe x16 (Gen4 x16) slot, from CPU_0
Slot_3: PCIe x16 (Gen4 x16) slot, from CPU_1
Slot_2: PCIe x16 (Gen4 x8) slot, from CPU_0
Slot_1: PCIe x16 (Gen4 x8) slot, from CPU_1
Rear panel ports2 x USB 3.0
1 x VGA
1 x COM
2 x RJ45
1 x MLAN
1 x ID button with LED
Onboard USB headers1 x USB 3.0 header
1 x USB 2.0 header
Size & build
Form factorExtended ATX
Width and length12 in × 13 in
Shipping weight2.22 kg
Package size406 × 356 × 81 mm
In the box
In the box1 x MZ72-HB2
1 x I/O shield
1 x Quick start guide
2 x SATA 6Gb/s cables (500 mm)
More details
Registered statusYes
SASCPU_0: 2 x SlimSAS connectors for 2 x Gen4 NVMe
CPU_1: *3 x SlimSAS connectors for 3 x Gen4 NVMe or 12 x SATA 6Gb/s
*To enable NVMe support, please navigate to the BIOS Setup section, then proceed to Advances > PCI Subsystem settings.

Questions about this item

Which memory configuration reaches the 4 TB maximum on this board?

Populate all 16 DDR4 3200 registered DIMM slots with supported modules; the eight-channel architecture across both CPUs enables the full 4 TB capacity.

What does the 10 Gbps LAN rating deliver in a live server?

Two Broadcom BCM57416 ports each run at 10 Gbps, giving 20 Gbps aggregate throughput for high-speed storage or cluster links.

How do the PCIe 4.0 slots and SlimSAS connectors share the CPU lanes?

CPU 0 provides three x16 slots, one x8 slot, four SATA ports, two SlimSAS for NVMe and one M.2 x4; CPU 1 adds two x16 slots, one x8 slot, twelve SATA ports and three SlimSAS for NVMe or SATA.

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