GIGABYTE MZ73-LM2 server motherboard dual EPYC 9005/9004 24 DDR5 500W

Dual EPYC server board for high-density compute

The GIGABYTE MZ73-LM2 is an E-ATX dual-socket motherboard built for AMD EPYC 9005 and 9004 series processors with a configurable TDP up to 500W. It targets data-centre workloads that demand maximum core density and memory bandwidth in a single chassis. Buyers needing single-socket operation or consumer-grade features should look elsewhere.

Twelve-channel memory

Twenty-four DDR5 RDIMM slots deliver 12-channel memory architecture per processor, while four PCIe Gen5 x16 slots, two MCIO 8i connectors and one SlimSAS 4i connector provide high-throughput storage and accelerator connectivity. Dual 10GbE LAN via Broadcom BCM57416 and a PCIe Gen5 x4 M.2 slot complete the I/O set. Systems limited to eight DIMMs or PCIe Gen4 cannot use this bandwidth.

Installation follows standard dual-socket server

The board mounts in E-ATX server chassis with SP5 socket alignment and 24 DIMM population rules that require matched modules per channel. Common issues include exceeding the 500W cTDP cooling budget, mismixing RDIMM ranks across channels, and leaving MCIO or SlimSAS cables unseated in dense backplanes. No consumer power connectors or desktop mounting holes are present.