Supermicro MBD-H12DSi-N6-O dual SP3 server motherboard

Dual SP3 Server Board

The Supermicro MBD-H12DSi-N6-O is an Extended ATX motherboard built for dual AMD EPYC 7003 and 7002 series processors in Socket SP3. It provides 16 DDR4 slots in an eight-channel layout with a maximum capacity of 4 TB of registered ECC memory. Three PCIe 4.0 x16 slots, three PCIe 4.0 x8 slots, and one M.2 PCIe 4.0 x4 connector handle add-in cards and fast storage. Rear I/O includes two 10GBase-T LAN ports, a dedicated IPMI port, VGA, and USB 2.0 and 3.0 connections.

Suited for Dual-CPU Servers

This board targets builders assembling dual-processor servers for virtualisation, compute clusters, or storage-heavy workloads that benefit from high core counts and large memory capacity. It is not for single-socket workstations, for systems that require integrated graphics beyond the ASPEED AST2600 BMC, or for users who need higher-speed networking than the onboard 1 GbE and 10 GbE interfaces provide.

BIOS 2.3 for 3D V-Cache CPUs

The single specification that decides compatibility is the firmware requirement: AMD EPYC 7003 series processors with 3D V-Cache technology operate only when the BIOS is at version 2.3 or newer. Boards shipping with older firmware must be updated before those specific CPUs will post, so verify the revision or plan an update path before installation.