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Green rectangular ATX server motherboard with large SP3 socket, eight DDR4 slots, multiple PCIe x16 slots, dual 10GbE RJ45 ports

Supermicro

Supermicro MBD-H12SSL-NT-O SP3 EPYC 7003/7002 server motherboard

SKU CH-XSA4-H8NHF MPN MBD-H12SSL-NT-O

Single-socket SP3 board with eight DDR4 3200 ECC slots, five PCIe 4.0 x16 and two x8 slots, dual 10 GbE LAN and two M.2 2280/22110 connectors

  • CPU Socket TypeSocket SP3
  • CPU TypeSupports AMD EPYC 7003/7002 Series Processor (7003 Series Pr
  • Number of Processor Support1
  • Number of DDR4 Slots8 x 288-pin
  • DDR4 StandardDDR4 3200
  • Channel SupportedEight Channel
  • Supports single AMD EPYC 7003/7002 processor for high performance computing
  • Eight-channel DDR4 3200 with 2TB max ECC registered memory capacity
  • Five PCIe 4.0 x16 plus two PCIe 4.0 x8 expansion slots
  • Dual 10GbE LAN via Broadcom BCM57416 for fast networking
  • Two M.2 PCIe 4.0 x4 slots supporting 2280 and 22110 form factors

Single-socket EPYC platform

The Supermicro MBD-H12SSL-NT-O is a server motherboard built for Socket SP3 AMD EPYC 7003 and 7002 series processors. It supports one CPU and eight-channel registered ECC DDR4 3200 memory up to 2 TB across 8 DIMM slots. The board delivers five PCIe 4.0 x16 slots, two PCIe 4.0 x8 slots and dual 10 Gbps LAN ports.

Suited for dense compute and storage

This board fits workloads that need many PCIe lanes and high memory capacity in a single-socket layout. Builders who require dual-processor scaling or support for newer EPYC generations should look elsewhere because the socket and chipset are limited to the listed series.

Build integration notes

The ATX form factor fits standard server chassis with matching mounting points. Two M.2 slots accept 2280 and 22110 M-key modules running at PCIe 4.0 x4, while two SlimSAS x8 connectors each provide eight SATA3 or two NVMe links. Seven PWM fan headers and an ASPEED AST2500 BMC give remote management and cooling control without extra add-in cards.

Highlights

  • Supports single AMD EPYC 7003/7002 processor for high performance computing
  • Eight-channel DDR4 3200 with 2TB max ECC registered memory capacity
  • Five PCIe 4.0 x16 plus two PCIe 4.0 x8 expansion slots
  • Dual 10GbE LAN via Broadcom BCM57416 for fast networking
  • Two M.2 PCIe 4.0 x4 slots supporting 2280 and 22110 form factors

Specifications

BrandSUPERMICRO
ModelMBD-H12SSL-NT-O
CPU Socket TypeSocket SP3
CPU TypeSupports AMD EPYC 7003/7002 Series Processor
(7003 Series Processor drop-in support requires BIOS version 2.0 or newer)
Number of Processor Support1
Number of DDR4 Slots8 x 288-pin
DDR4 StandardDDR4 3200
Channel SupportedEight Channel
ECC SupportedYes
RegisteredYes
PCI Express 4.0 x165 PCI-E 4.0 x16
PCI Express x82 PCI-E 4.0 x8
SAS2 SlimSAS x8 (each: 8 SATA3 or 2 NVMe)
M.2Interface: 2 PCI-E 4.0 x4
Form factor: 2280, 22110
Key: M-key
Onboard Video ChipsetAspeed AST2500
Audio Channels8 Channels
LAN ChipsetBroadcom BCM57416
LAN Speed10Gbps
Max LAN Speed10Gbps
Back I/O Ports1 x COM (Serial Port) / 1 x D-Sub / 2 x LAN (RJ45) / 4 x USB 3.0
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Shipping weight1.74 kg
Package size460 × 375 × 85 mm

Questions about this item

What AMD EPYC processor generation do I need to install for drop-in support on the MBD-H12SSL-NT-O?

The board requires an AMD EPYC 7003 series processor and BIOS version 2.0 or newer for drop-in support.

Will my existing DDR4 3200 registered ECC modules work in the eight 288-pin slots?

Yes, the eight-channel design accepts DDR4 3200 registered ECC DIMMs up to 2 TB total capacity.

How can I confirm the dual 10GbE LAN ports are active after first boot?

Check the back-panel RJ45 link LEDs and verify 10 Gbps negotiation in the OS network settings or the BMC interface.

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