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Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi

Product image: Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi-null
Product image: Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi-null
Product image: Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi-null
Product image: Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi-null
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Gigabyte ms73-hb1 dual-socket server motherboard lga 4677 intel c741 e-atx 16x ddr5 rdimm pcie 5.0 dual gbe ipmi

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Description

Item No. 2e5b294d-cfd2-4f4d-a57b-c9f0602f8e1f
Gigabyte MS73-HB1 — Dual-Socket Intel Xeon Scalable Server Board Dual LGA 4677 · Intel C74116× DDR5 RDIMM, 8-channel/CPU6× PCIe 5.0 x16Dual GbE · IPMI The Gigabyte MS73-HB1 is a dual-socket E-ATX server motherboard built on the Intel C741 chipset, supporting two 4th or 5th Generation Intel Xeon Scalable (and Xeon CPU Max) processors on Socket E (LGA 4677). Sold under Gigabyte part number 9MS73HB1MR-000 (EAN 4719331849368), it provides sixteen DDR5 RDIMM slots (8-channel per CPU), six PCIe 5.0 x

Attributes

Motherboard Characteristics

  • Processor Socket: Socket 4677

Details

Gigabyte MS73-HB1 — Dual-Socket Intel Xeon Scalable Server Board

Dual LGA 4677 · Intel C74116× DDR5 RDIMM, 8-channel/CPU6× PCIe 5.0 x16Dual GbE · IPMI

The Gigabyte MS73-HB1 is a dual-socket E-ATX server motherboard built on the Intel C741 chipset, supporting two 4th or 5th Generation Intel Xeon Scalable (and Xeon CPU Max) processors on Socket E (LGA 4677). Sold under Gigabyte part number 9MS73HB1MR-000 (EAN 4719331849368), it provides sixteen DDR5 RDIMM slots (8-channel per CPU), six PCIe 5.0 x16 expansion slots, dual M.2, SlimSAS and SATA storage, dual Gigabit LAN and IPMI remote management — a high-performance foundation for dual-processor servers and workstations. Typically in stock with fast delivery across Cyprus.

Compatibility — read before buying
This is a dual Socket E (LGA 4677) server board supporting 4th/5th Generation Intel Xeon Scalable and Xeon CPU Max processors (TDP up to 350W) — not desktop Intel CPUs. It requires DDR5 RDIMM (registered ECC) server memory, not desktop UDIMM, and its E-ATX footprint (304.8 × 330.2mm) needs a compatible dual-socket server/workstation chassis. Both sockets should be populated for full memory-channel bandwidth.

Best For

✓Dual-socket Intel Xeon Scalable servers
✓HPC, virtualization and data-center compute nodes
✓Memory-bandwidth-intensive workloads (8-channel/CPU)
✓Multi-GPU / accelerator servers (6× PCIe 5.0)
✓High-core-count workstations
✓Remote-managed enterprise infrastructure

Key Features

 
Dual 4th/5th Gen Xeon Scalable
Two LGA 4677 sockets support 4th and 5th Generation Intel Xeon Scalable and Xeon CPU Max processors (up to 350W TDP) for massive multi-threaded performance.
 
16× DDR5 RDIMM, 8-channel per CPU
Sixteen DDR5 RDIMM slots provide full 8-channel memory bandwidth per processor at up to 5600 MT/s (5th Gen) for memory-hungry server workloads.
 
Six PCIe 5.0 x16 slots
Six PCIe 5.0 x16 expansion slots deliver enormous bandwidth for GPUs, accelerators, network and storage cards in dense server builds.
 
Server storage & management
Dual M.2 (PCIe Gen4), three SlimSAS 4i and SATA ports for storage, plus dual Intel I210-AT GbE LAN and IPMI remote management with onboard BMC.

Technical Specifications

Identification
Part Number 9MS73HB1MR-000
EAN / GTIN 4719331849368
Model Gigabyte MS73-HB1
Brand Gigabyte
Platform
Chipset Intel C741
Sockets 2× Socket E (LGA 4677)
CPU Support 4th/5th Gen Intel Xeon Scalable + Xeon CPU Max (up to 350W)
Form Factor E-ATX (304.8 × 330.2 mm)
Management IPMI with onboard BMC
Memory
Slots 16× DDR5 RDIMM (8-channel per CPU)
Speed Up to 5600 MT/s (5th Gen) / 4800 MT/s (4th Gen)
Type Registered ECC (RDIMM) — server memory only
Expansion & Storage
PCIe Slots 6× PCIe 5.0 x16
M.2 2× M.2 PCIe Gen4 x4
Storage 3× SlimSAS 4i (SATA) + 2× SATA 7-pin
Connectivity & I/O
LAN 2× 1GBE — Intel I210-AT
Management LAN Dedicated IPMI / BMC port
USB USB 3.2 Gen 1
Graphics Onboard VGA (BMC)
Other
Memory Type RDIMM registered ECC only
Colour Green
Operating System Windows Server / Linux server distributions

Frequently Asked Questions

Which processors does the Gigabyte MS73-HB1 support?
It supports two 4th or 5th Generation Intel Xeon Scalable processors (and Xeon CPU Max) on dual Socket E (LGA 4677), with TDP up to 350W. Desktop Intel CPUs are not compatible.
What memory does it use?
It uses DDR5 RDIMM (registered ECC) server memory across 16 slots, providing 8 channels per CPU at up to 5600 MT/s. Standard desktop UDIMM/non-ECC memory is not supported.
How much expansion does it offer?
Six PCIe 5.0 x16 slots for GPUs and accelerators, plus two M.2 (PCIe Gen4), three SlimSAS 4i and SATA ports for storage.
Does it support remote management?
Yes. It includes IPMI with an onboard BMC and a dedicated management LAN port for out-of-band monitoring and control, alongside dual Intel I210-AT GbE for data.
Singular Expert Insight
The MS73-HB1 is a serious dual-socket platform for 4th/5th Gen Xeon Scalable — its 16 DDR5 RDIMM slots and six PCIe 5.0 x16 slots make it ideal for HPC, virtualization and GPU-dense servers where total memory bandwidth and expansion matter most. For single-socket efficiency builds, the older X12-class or single-socket boards are simpler; forAMD, an EPYC server board is the alternative. Pair it with enterprise server SSDs for reliable, high-endurance storage.

Buyer's Guide

Buy it if
You are building a dual-socket 4th/5th Gen Intel Xeon Scalable server or workstation needing maximum memory bandwidth and PCIe 5.0 expansion.
Skip it if
You need a single-socket or low-power node, or a desktop build — choose a single-socket Xeon board or a desktop platform.
Also consider
A single-socket Xeon server board for simpler nodes, or anAMD EPYC board for an alternative dual-/single-socket platform.