HMCG88AHBRA478N Hynix 32GB PC5-51200 DDR5-6400MHz SDRM 2Rx8 ECC Registered Memory Module

Hynix 32GB DDR5 SDRAM ECC Memory

The Hynix HMCG88AHBRA478N is a high-performance 32GB DDR5 SDRAM module engineered for enterprise-grade servers and advanced computing systems. Designed with ECC and registered signal processing, it ensures reliability, speed, and stability for mission-critical workloads.

General Information

• Brand: Hynix
• Model Number: HMCG88AHBRA478N
• Device Category: 32GB DDR5 SDRAM Registered ECC Module

Technical Specifications

Memory Details

• Capacity: 32GB
• Technology: DDR5 SDRAM
• Module Count: 1 x 32GB

Performance Attributes

• Bus Speed: 6400MT/s DDR5-6400 / PC5-51200
• Error Correction: ECC (Error-Correcting Code)
• Signal Type: Registered
• Latency: CL46
• Rank Configuration: 2Rx8

Physical Characteristics

Form Factor

• Design: 288-pin RDIMM

Dimensions & Weight

• Height: 1.00 inch
• Depth: 6.75 inches
• Weight: 0.20 lb

Compatibility Information

Supported Systems

• PowerEdge C6620
• PowerEdge HS5610
• PowerEdge HS5620
• PowerEdge MX760c
• PowerEdge R660
• PowerEdge R660xs
• PowerEdge R770
• PowerEdge R760xa
• PowerEdge R760xd2
• PowerEdge R760xs
• PowerEdge T550

HMCG88AHBRA478N DDR5 SDRAM Memory Modules

The category encompassing the Hynix HMCG88AHBRA478N 32GB PC5-51200 DDR5-6400MHz SDRM 2Rx8 ECC Registered Memory Module represents a critical segment of enterprise-grade server memory designed for next-generation computing environments. This category focuses on high-capacity, high-frequency DDR5 registered DIMMs engineered to meet the increasing demands of data centers, cloud service providers, enterprise servers, and mission-critical infrastructure. DDR5 registered memory modules in this category are optimized for stability, scalability, and sustained performance under continuous workloads, making them essential components for modern server platforms that prioritize reliability and bandwidth.

Memory modules within this category are built to support advanced processors from leading server CPU manufacturers, enabling efficient handling of large datasets, virtualization workloads, high-performance computing tasks, and memory-intensive enterprise applications. The Hynix HMCG88AHBRA478N exemplifies this category by combining a substantial 32GB capacity with DDR5 technology operating at an effective data rate of 6400MHz, delivering significantly higher bandwidth compared to previous DDR4 generations.

DDR5 SDRAM Technology and Architectural Advancements

DDR5 SDRAM marks a major architectural evolution in system memory design, and this category centers on fully leveraging those advancements for server and workstation platforms. DDR5 introduces higher base frequencies, increased memory density, improved power efficiency, and enhanced channel architecture. Memory modules like the Hynix HMCG88AHBRA478N are designed to capitalize on DDR5’s dual 32-bit sub-channel architecture, which improves parallelism and reduces latency when compared to traditional single-channel designs.

This category emphasizes DDR5 modules capable of delivering exceptional throughput while maintaining signal integrity at high frequencies. Operating at PC5-51200 specifications, these modules provide theoretical bandwidth well beyond DDR4 limits, supporting data-intensive workloads such as in-memory databases, real-time analytics, artificial intelligence model training, and large-scale virtualization. The advanced signaling and on-die ECC features inherent to DDR5 further enhance data integrity at the silicon level, complementing the registered and ECC capabilities present at the module level.

High-Frequency Operation at 6400MHz

The 6400MHz operating frequency is a defining characteristic of this memory category, positioning it at the high-performance end of DDR5 server memory solutions. High-frequency operation enables faster data transfers between the memory subsystem and the processor, reducing bottlenecks in compute-heavy environments. Modules such as the Hynix HMCG88AHBRA478N are engineered with precise timing controls, advanced PCB layouts, and robust quality assurance processes to ensure stable operation at these elevated speeds.

This category addresses the needs of organizations deploying next-generation CPUs that are specifically designed to take advantage of higher memory frequencies. By pairing 6400MHz DDR5 registered memory with compatible platforms, system architects can achieve optimal performance scaling across multiple cores and threads, improving overall system responsiveness and throughput.

Registered DIMM Design for Scalability and Signal Integrity

A defining feature of this category is the use of registered DIMM architecture, commonly referred to as RDIMM. Registered memory modules incorporate a register or buffer between the memory controller and the DRAM chips, reducing electrical load and improving signal integrity. This design is essential for large-capacity memory configurations where multiple DIMMs are populated per channel.

The Hynix HMCG88AHBRA478N, as part of this category, exemplifies how RDIMM technology enables greater scalability without compromising stability. Registered memory allows enterprise servers to support higher total memory capacities, making it possible to deploy systems with hundreds of gigabytes or even terabytes of RAM. This scalability is crucial for applications such as virtualization clusters, enterprise resource planning systems, and large-scale scientific simulations.

2Rx8 Memory Organization

The 2Rx8 configuration found in this category reflects a dual-rank memory layout using x8 DRAM chips. Dual-rank modules provide performance benefits by allowing the memory controller to interleave access between ranks, effectively increasing data throughput and improving efficiency under multi-threaded workloads. This organization is particularly advantageous in server environments where consistent performance under load is critical.

Modules like the Hynix HMCG88AHBRA478N utilize high-quality DRAM components arranged in a 2Rx8 configuration to balance capacity, performance, and compatibility. This category prioritizes such configurations because they align well with enterprise server memory controller designs and offer predictable performance characteristics across a wide range of workloads.

Error Correction Code Support for Data Integrity

ECC support is a foundational element of this category, reflecting the importance of data integrity in enterprise and mission-critical systems. ECC memory modules detect and correct single-bit errors while identifying multi-bit errors, significantly reducing the risk of data corruption. The Hynix HMCG88AHBRA478N belongs to a category of memory solutions that integrate ECC functionality to meet stringent reliability requirements.

This category is designed for environments where uptime, accuracy, and data consistency are non-negotiable. ECC registered DDR5 memory modules are commonly deployed in servers running financial applications, healthcare systems, scientific research platforms, and large-scale databases. The combination of ECC and registered architecture provides a robust foundation for long-term system stability, even under continuous high-load conditions.

32GB Capacity as a Building Block for High-Density Systems

The 32GB capacity of the Hynix HMCG88AHBRA478N places it squarely within a category designed for flexible and scalable memory configurations. While larger capacity modules are available, 32GB DDR5 RDIMMs remain a foundational building block for many enterprise systems, allowing administrators to tailor memory capacity to specific workload requirements.

This category supports configurations ranging from moderate-memory servers to high-density systems populated with multiple 32GB modules per channel. Such flexibility enables cost-effective scaling, allowing organizations to expand memory capacity incrementally as demands grow. The category focuses on modules that maintain consistent performance and reliability regardless of deployment scale.

Power Management and Efficiency Enhancements in DDR5

DDR5 memory introduces significant improvements in power management, and this category highlights modules that take full advantage of those enhancements. The integration of on-module power management ICs shifts voltage regulation closer to the memory, improving efficiency and reducing noise. The Hynix HMCG88AHBRA478N belongs to a category that prioritizes stable power delivery and reduced overall system power consumption.

Improved power efficiency is especially important in data center environments where energy costs and thermal management are major considerations. DDR5 RDIMMs in this category are designed to operate efficiently at high frequencies, supporting sustainability goals while delivering superior performance.

Thermal Stability Under Continuous Load

Thermal performance is a critical aspect of this category, as high-frequency memory operation generates additional heat. Modules such as the Hynix HMCG88AHBRA478N are engineered to maintain thermal stability under sustained workloads, ensuring reliable operation in densely populated server chassis.

This category emphasizes rigorous validation and adherence to enterprise thermal specifications, enabling deployment in a wide range of environmental conditions. Stable thermal behavior contributes to longer component lifespan and reduced risk of performance throttling.

Compatibility with Next-Generation Server Platforms

Compatibility is a defining consideration within this category, as DDR5 RDIMMs must integrate seamlessly with modern server platforms. The Hynix HMCG88AHBRA478N is representative of memory modules designed to meet industry standards and vendor qualification requirements. This category focuses on modules that are validated for use with leading server chipsets, BIOS implementations, and firmware configurations.

By adhering to JEDEC specifications and rigorous quality control processes, this category ensures that memory modules deliver predictable performance and interoperability. System integrators and IT professionals rely on this consistency when designing and deploying enterprise infrastructure.