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Green extended ATX server motherboard with dual SP3 sockets and sixteen DIMM slots

Supermicro

Supermicro MBD-H12DSI-NT6-B server motherboard EPYC 7002/7003 16 DIMM 4TB

SKU CH-K54H-XPNVW MPN MBD-H12DSI-NT6-B

Dual-socket EPYC 7002/7003 board with 16 DDR4 DIMM slots supporting 2.4TB and six PCI-E 4.0 expansion slots plus an M.2 2280/22110 M-key slot

  • ProcessorAMD EPYC 7002 Series / AMD EPYC 7003 Series
  • Form factorExtended ATX
  • CPU socketSocket SP3
  • Dual EPYC 7002/7003 processors scale compute density
  • 16 DIMM slots support 4 TB DDR4 3200 MHz registered ECC memory
  • Three PCIe 4.0 x16 slots enable high-bandwidth GPU or accelerator configurations
  • Three PCIe 4.0 x8 slots provide additional I/O expansion capacity
  • M.2 M-key slot accepts 2280 and 22110 form factors at PCIe 4.0 x4

Dual EPYC Server Board

The Supermicro MBD-H12DSI-NT6-B is an Extended ATX server motherboard built for dual AMD EPYC 7002 and 7003 series processors in Socket SP3. It targets high-density compute nodes, virtualisation clusters and storage appliances that need maximum core count per chassis. Builders requiring single-socket operation or consumer-grade features should look elsewhere.

Memory and Expansion Limits

Sixteen DDR4 DIMM slots support up to 4TB of registered ECC memory at 3200MHz, filling every channel across both sockets. Six PCI-E 4.0 expansion slots provide three x16 and three x8 links for accelerators, networking or storage controllers. A single M.2 M-key slot accepts 2280 or 22110 form factors at PCI-E 4.0 x4 speeds.

BIOS Gate for Newer CPUs

The board ships with BIOS that must be at version 2.3 or newer before an AMD EPYC 7003 series processor with 3D V-Cache technology will post. Without that update the system will not boot, so plan firmware preparation before installing those specific SKUs.

How it compares

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

Price $582.99
Pricier than about 86% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameSUPERMICRO
Processor
ProcessorAMD EPYC 7002 Series / AMD EPYC 7003 Series
CPU socketSocket SP3
Size & build
Form factorExtended ATX
Shipping weight2.38 kg
Package size432 × 331 × 86 mm

Questions about this item

Should I choose the EPYC 7002 or 7003 series for this Socket SP3 board?

Both series fit the same Socket SP3, but the 7003 series needs BIOS 2.3 or newer to enable 3D V-Cache technology.

What does the 3200 MHz DDR4 rating mean once the board is populated with 16 DIMMs?

The board supports up to 4 TB of registered ECC DDR4 at 3200 MHz across all 16 slots when compatible processors are installed.

How many PCI-E 4.0 lanes do the three x16 and three x8 slots provide in practice?

The board offers three PCI-E 4.0 x16 slots and three PCI-E 4.0 x8 slots for add-in cards, plus one M.2 M-key slot at PCI-E 4.0 x4.

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