The **MZ93-R470RM** is a high-performance server motherboard manufactured by GIGABYTE, designed specifically for the **AMD EPYC™ 9004 Series (Genoa/Bergamo)** processors. It follows the E-ATX form factor and is built for data centers, virtualization, and AI inference workloads. --- ### 1. Core Architecture & Processing The board is built around the **AMD SP5 socket (LGA 6096)**. It is a dual-socket configuration capable of handling the massive core counts of 4th Gen EPYC CPUs. | Component | Specification | Details | | :--- | :--- | :--- | | **CPU Support** | 2 x AMD EPYC™ 9004 | Supports up to 128 cores per socket (256 cores total). | | **TDP Support** | Up to 400W | Requires high-efficiency VRMs for power delivery. | | **Memory Slots** | 24 x DIMM Slots | 12 channels per CPU for maximum bandwidth. | | **Memory Type** | DDR5 RDIMM | Supports speeds up to 4800MT/s. | --- ### 2. High-Speed Connectivity (PCIe 5.0) The electronic design leverages **PCIe 5.0**, which doubles the bandwidth of the previous generation (PCIe 4.0), making it ideal for modern GPUs and NVMe storage. * **Expansion Slots:** * 4 x PCIe Gen5 x16 slots (Full-height, Full-length). * Used for high-speed NICs (200GbE/400GbE) or Accelerators. * **Storage Interface:** * **M.2 Slots:** 1 x M.2 (PCIe Gen4 x4) for boot drives. * **SlimSAS/MCIO:** Multiple connectors for U.2/U.3 NVMe drives. --- ### 3. Integrated Networking & Management The motherboard includes integrated controllers for data transmission and remote hardware monitoring. | Part Type | Component Model | Description | | :--- | :--- | :--- | | **LAN Controller** | Broadcom BCM57416 | Dual 10Gb/s Base-T Ethernet ports. | | **Management Controller** | ASPEED AST2600 | Baseboard Management Controller (BMC). | | **Management Port** | 1 x Dedicated MLAN | For IPMI 2.0 remote access and KVM. | --- ### 4. Power and Thermal Design Because the board supports dual 400W CPUs, the electrical components are "Server-Grade": * **VRM Design:** Multi-phase digital power delivery with high-efficiency chokes and capacitors to ensure stable voltage under heavy compute loads. * **Power Input:** 24-pin ATX main power plus multiple 8-pin 12V connectors for the CPUs and PCIe slots. * **Fan Headers:** Multiple 4-pin headers with PWM control, managed by the BMC to optimize airflow based on thermal sensors. --- ### 5. Rear I/O Panel Overview 1. **2 x USB 3.2 Gen1** ports. 2. **1 x VGA** (driven by ASPEED AST2600). 3. **2 x 10GbE LAN** (RJ45). 4. **1 x Management LAN** (RJ45). 5. **1 x ID LED/Button** (for rack identification).