HMCGM4MHBRB257N Hynix 96GB DDR5-6400MHz PC5-51200 ECC SDRAM Ram

Highlights of Hynix HMCGM4MHBRB257N 96GB 6400MHz Ram

The Hynix HMCGM4MHBRB257N 96GB DDR5 memory module is engineered for enterprise servers that demand extreme bandwidth, stability, and scalability. Built with next-generation DDR5 technology, this RDIMM delivers outstanding performance for modern data centers and mission-critical workloads.

General Information

• Manufacturer: SK Hynix
• Part Number: HMCGM4MHBRB257N
• Product Type: Server Memory Module
• Sub Type: DDR5 6400MHz (PC5-51200)

Technical Specifications

• Total Capacity: 96GB
• Module Quantity: 1 x 96GB
• Rank Structure: Dual Rank
• Memory Speed: 6400MHz
• Memory Standard: DDR5-6400 / PC5-51200
• CAS Latency: CL52
• Operating Voltage: 1.1V

Reliability, ECC & Signal Processing

• Error Checking: ECC (Error-Correcting Code)
• Signal Processing: Registered
• Reduced risk of data corruption and system crashes

Physical Specifications

• Form Factor: 288-Pin DIMM
• Length: 8 inches
• Width: 2 inches
• Thickness: 500 mil
• Shipping Weight: 0.20 lb

Key Features & Highlights

• 96GB high-capacity DDR5 server memory
• DDR5-6400MHz speed with PC5-51200 bandwidth
• ECC support for enhanced data integrity
• Registered DIMM for enterprise-level stability
• Dual-rank design for optimized performance
• Energy-efficient 1.1V operation

Overview of Hynix HMCGM4MHBRB257N DDR5 PC5-51200 Ram

The Hynix HMCGM4MHBRB257N 96GB DDR5-6400MHz PC5-51200 ECC Registered CL52 1.1V 288-Pin SDRAM Memory Module is part of the premium enterprise DDR5 ECC RDIMM memory category engineered for modern server platforms that require exceptional bandwidth, high memory density, and uncompromising reliability. This category is specifically designed for data centers, enterprise IT infrastructures, cloud service providers, virtualization clusters, and performance-critical computing environments where memory performance and stability are foundational to system efficiency.

Role of DDR5 ECC RDIMM Memory in Modern Server Design

Server architectures have evolved to prioritize memory bandwidth and scalability as much as raw compute performance. The HMCGM4MHBRB257N category plays a central role in this evolution by enabling servers to deploy large memory capacities per socket while sustaining extremely high transfer rates. The registered DIMM design buffers command and address signals, reducing electrical load and allowing stable operation with high-capacity modules installed across all memory channels. This capability is critical for enterprise servers that must operate continuously under heavy memory utilization, ensuring predictable behavior and long-term reliability.

Category Placement Within PC5-51200 Server Memory Segments

PC5-51200 DDR5 memory represents one of the highest standardized bandwidth tiers available for enterprise platforms. The HMCGM4MHBRB257N category is positioned within this tier as a fully validated ECC Registered solution, differentiating it from unbuffered or non-ECC DDR5 modules intended for consumer or workstation use. This positioning makes the category suitable for mission-critical deployments where performance must be paired with enterprise-grade safeguards.

DDR5 SDRAM Technology and Architectural Enhancements

DDR5 SDRAM introduces a broad set of architectural enhancements that significantly improve memory subsystem efficiency, scalability, and power management. The Hynix HMCGM4MHBRB257N category is built on these advancements, enabling enterprise servers to manage growing volumes of memory transactions generated by highly parallel workloads. Enhancements include increased bank counts, expanded bank group architecture, longer burst lengths, and refined refresh algorithms. These improvements collectively reduce contention and increase effective bandwidth utilization under multi-threaded and multi-core access patterns.

Dual Independent Sub-Channel Architecture

Each DDR5 DIMM is divided into two independent 32-bit sub-channels, enabling simultaneous memory operations within a single module. The HMCGM4MHBRB257N category benefits from this design by improving concurrency and reducing access latency when multiple processing threads request memory at the same time. This architectural shift is particularly advantageous in virtualized environments, microservices architectures, and large-scale cloud platforms.

Signal Integrity Engineering at 6400MHz

Operating at 6400MHz places stringent demands on signal integrity. The HMCGM4MHBRB257N category incorporates advanced PCB layouts, high-quality materials, optimized trace routing, and strict impedance control to ensure stable data transmission at very high speeds. These design considerations support continuous operation in enterprise servers without degradation in performance or reliability.

DDR5-6400 Performance Profile and PC5-51200 Bandwidth

The DDR5-6400 operating frequency of the Hynix HMCGM4MHBRB257N category corresponds to a PC5-51200 bandwidth rating, delivering up to 51.2GB/s of theoretical peak bandwidth per module. This level of throughput significantly reduces memory bottlenecks, allowing CPUs to process data with minimal waiting cycles. High bandwidth memory is essential for workloads that involve frequent data movement, such as real-time analytics, financial modeling, machine learning inference, and scientific simulations.

Scalable Bandwidth Across Multi-Channel Server Architectures

Enterprise processors typically support multiple memory channels per socket, allowing total system bandwidth to scale as channels are populated. The HMCGM4MHBRB257N category is optimized for balanced channel population, ensuring consistent bandwidth distribution and predictable performance. This scalability is critical for dual-socket and multi-socket servers deployed in data centers and high-performance computing environments.

Latency Characteristics and CL52 Timing Balance

The CL52 timing specification reflects the balance required to achieve very high operating frequencies while maintaining stable latency characteristics. While absolute latency values increase with frequency, the overall reduction in access time per data unit often results in net performance gains for bandwidth-sensitive workloads. The HMCGM4MHBRB257N category is tuned to align with server memory controller specifications, ensuring reliable operation under diverse workload conditions.

96GB High-Density Memory Capacity Advantages

The 96GB capacity of the Hynix HMCGM4MHBRB257N category enables servers to achieve very large memory footprints using fewer physical DIMM slots. High-density memory modules reduce component count, simplify system design, and improve airflow within server enclosures. This density is particularly valuable as enterprise workloads increasingly rely on in-memory processing to achieve low-latency performance.

Containerization

Virtual machines and containers compete for memory resources in consolidated server environments. The HMCGM4MHBRB257N category allows higher consolidation ratios by providing ample memory per slot, reducing contention and ensuring consistent performance for each workload. This capability is essential for cloud service providers and enterprises running private cloud infrastructures.

In-Memory Databases and Analytics Engines

In-memory databases and analytics platforms benefit from large memory capacities that allow datasets to remain resident in RAM. The 96GB capacity of this category minimizes reliance on slower storage tiers, improving query response times and overall system responsiveness. This makes the HMCGM4MHBRB257N category suitable for real-time analytics, transaction processing systems, and large-scale data caching applications.

ECC Data Protection and Registered DIMM Reliability

Error-correcting code functionality is a defining feature of enterprise memory. The Hynix HMCGM4MHBRB257N category includes full ECC support, enabling detection and correction of single-bit memory errors and detection of multi-bit faults before they impact system behavior. ECC protection is critical in environments where data integrity is essential and downtime carries significant financial or operational consequences.

Importance of ECC in Long-Running Enterprise Systems

Enterprise servers often operate continuously for extended periods, increasing exposure to transient memory errors caused by electrical noise, environmental factors, or component aging. ECC functionality mitigates these risks, preserving data accuracy and system stability. This reliability is particularly important in sectors such as finance, healthcare, telecommunications, and government infrastructure.

Registered DIMM Signal Buffering and Scalability

The registered DIMM architecture buffers command and address signals, reducing electrical stress on the memory controller. This enables stable operation with high-capacity modules installed across all memory channels. The HMCGM4MHBRB257N category leverages this architecture to support scalable memory configurations without compromising signal integrity.

1.1V DDR5 Operating Voltage

The Hynix HMCGM4MHBRB257N category operates at a nominal voltage of 1.1V, reflecting DDR5’s improved energy efficiency compared to previous generations. Lower voltage operation reduces overall power consumption and heat generation, which is critical in dense data center environments. Energy-efficient memory contributes to lower operational costs and improved thermal management across large server fleets.

On-Module Integration

DDR5 memory incorporates on-module power management to deliver precise voltage regulation and reduce electrical noise. The HMCGM4MHBRB257N category benefits from this design by maintaining stable operation at very high frequencies while optimizing power efficiency. This architecture also simplifies motherboard power delivery and enhances overall platform reliability.

Thermal Stability Under Sustained Enterprise Workloads

High-frequency, high-capacity memory modules must operate reliably under sustained load. The HMCGM4MHBRB257N category is engineered to meet enterprise thermal specifications, ensuring consistent performance without throttling. This thermal stability supports deployment in data centers with constrained cooling resources.

Server Ecosystem Integration

Enterprise memory modules must be validated across a wide range of server platforms to ensure predictable behavior. The Hynix HMCGM4MHBRB257N category is designed to comply with industry standards and is qualified for use with modern server processors and chipsets that support DDR5 ECC RDIMM memory. This compatibility reduces deployment risk and simplifies system integration.

Next-Generation Server Processors

Modern server CPUs are designed to take advantage of DDR5’s increased bandwidth and capacity capabilities. The HMCGM4MHBRB257N category aligns with these processors, enabling balanced compute-to-memory ratios and maximizing overall system performance. This alignment ensures that memory does not become a bottleneck as processor capabilities continue to advance.

Consistency and Enterprise Supply Stability

Enterprise environments often require consistent hardware configurations over extended periods. The HMCGM4MHBRB257N category benefits from controlled manufacturing processes and long-term availability, enabling organizations to maintain homogeneous server fleets. This consistency simplifies maintenance, capacity planning, and spares management.

Hynix Manufacturing Expertise and Quality Assurance

Hynix is a globally recognized leader in DRAM manufacturing, supplying memory solutions to enterprise, cloud, and high-performance computing markets. The HMCGM4MHBRB257N category reflects Hynix’s commitment to quality, reliability, and technological leadership. Each module undergoes rigorous testing and validation to ensure compliance with enterprise performance and reliability standards.

Enterprise Validation and Stress Testing

Memory modules in this category are subjected to extensive stress testing to verify stable operation under extreme conditions. This includes thermal cycling, voltage margin testing, and long-duration load validation. These processes ensure that the HMCGM4MHBRB257N category delivers consistent performance throughout its operational lifespan.

Scalable Foundation for Future Enterprise Computing

As enterprise workloads continue to grow in complexity and scale, memory subsystems must provide both immediate performance and long-term scalability. The high bandwidth, large capacity, ECC protection, and energy efficiency of the Hynix HMCGM4MHBRB257N category make it a robust foundation for future-ready enterprise server architectures. This category supports organizations as they expand data-intensive workloads, adopt new computing paradigms, and prepare for next-generation infrastructure demands.