HMCGM4MHBRB503N Hynix 96GB DDR5 6400Mhz PC5-51200 RAM Module.

Enterprise-Grade DDR5 Server Memory Module

The Hynix HMCGM4MHBRB503N is engineered for data centers and enterprise servers that demand consistent performance, enhanced stability, and high-capacity memory configurations. Built on advanced DDR5 SDRAM architecture, this module supports modern server platforms requiring reliable, high-bandwidth memory solutions.

Key Product Overview

• Manufacturer: Hynix
• Part Number / SKU: HMCGM4MHBRB503N
• Product Category: Server Memory Module
• Memory Generation: DDR5
• Included Units: Single Module

High-Capacity Memory Configuration

With an impressive 96GB capacity, this DDR5 RDIMM enables efficient handling of memory-intensive workloads such as virtualization, database processing, cloud computing, and enterprise applications. The dual-rank design enhances data throughput while maintaining operational stability.

Capacity and Module Details

• Total Memory Size: 96GB
• Module Count: 1 x 96GB
• Rank Structure: Dual Rank
• Module Type: Registered DIMM (RDIMM)

Performance and Speed Specifications

Operating at a blazing-fast 6400MHz, this server memory module aligns with the DDR5-6400 / PC5-51200 standard, delivering exceptional bandwidth and improved power efficiency compared to previous generations.

Speed and Latency Attributes

• Memory Speed: 6400MHz
• Memory Standard: PC5-51200
• CAS Latency: CL52
• Memory Technology: DDR5 SDRAM

Reliability, ECC, and Signal Integrity

Designed for mission-critical environments, this Hynix server memory integrates ECC (Error-Correcting Code) to automatically detect and correct data errors. Registered signal processing further enhances signal integrity, making it suitable for continuous, high-load server operations.

Error Handling and Stability Features

• Error Checking: ECC Supported
• Signal Processing Type: Registered
• Optimized for 24/7 Server Uptime

Power Efficiency and Electrical Design

Operating at a low voltage of just 1.1V, this DDR5 module reduces power consumption while maintaining high-speed performance. This efficiency contributes to lower heat output and improved energy management in dense server environments.

Voltage Characteristics

• Operating Voltage: 1.1V
• Energy-Efficient DDR5 Architecture

Form Factor and Physical Dimensions

The standard 288-pin DIMM form factor ensures compatibility with modern DDR5-enabled server motherboards. Its compact and lightweight design supports easy installation and secure seating in enterprise systems.

Physical Specifications

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

Ideal Use Cases

• Enterprise Servers and Data Centers
• Virtualized and Cloud Infrastructure
• High-Performance Computing Systems
• Database and Analytics Workloads

Enterprise DDR5 Server Memory Architecture and Category Overview

The Hynix HMCGM4MHBRB503N 96GB DDR5 6400Mhz PC5-51200 ECC Registered Server Memory Module belongs to the advanced enterprise-class DDR5 RDIMM memory category, designed specifically for high-density, high-bandwidth server and data center environments. This category represents a significant evolution from DDR4 server memory, offering substantial improvements in bandwidth, efficiency, scalability, and reliability. DDR5 server memory modules are engineered to meet the demands of modern workloads such as virtualization, cloud computing, in-memory databases, artificial intelligence, machine learning, high-performance computing, and large-scale enterprise applications where memory capacity and speed are critical performance factors.

Within this category, high-capacity modules such as 96GB DDR5 RDIMMs play a crucial role in reducing total DIMM count per server while maximizing memory density per socket. This enables organizations to scale memory-intensive workloads without occupying every memory slot, allowing for future expansion and optimized airflow within server chassis. The combination of DDR5 technology, ECC Registered architecture, and dual-rank design positions this memory module category as a foundation for next-generation server platforms built on the latest Intel Xeon and AMD EPYC processor families.

DDR5 6400MHz Performance Class and PC5-51200 Bandwidth

The DDR5 6400MHz performance tier, also identified as PC5-51200, represents a high-bandwidth segment within the DDR5 server memory ecosystem. Operating at an effective data rate of 6400 megatransfers per second, this category delivers significantly higher throughput compared to earlier DDR5 speeds and far surpasses DDR4 memory limitations. The increased bandwidth directly benefits data-intensive applications that rely on rapid memory access, such as real-time analytics, scientific simulations, large-scale virtualization, and transaction-heavy enterprise databases.

PC5-51200 memory modules are particularly valuable in multi-core and many-core server CPUs, where dozens or even hundreds of cores compete for memory access. By providing higher bandwidth per DIMM, DDR5 6400MHz server memory helps reduce memory bottlenecks and ensures that processor resources are utilized efficiently. This category is optimized for platforms that support advanced memory controllers capable of sustaining higher frequencies while maintaining signal integrity and stability in enterprise-grade environments.

Impact of High Memory Bandwidth on Server Workloads

In modern server architectures, memory bandwidth is as critical as raw CPU performance. The DDR5 6400MHz category is designed to address the growing gap between processor compute capabilities and memory access speeds. Applications such as virtualization platforms hosting hundreds of virtual machines benefit from faster memory access, as each VM generates concurrent memory requests. Similarly, AI inference engines and in-memory data processing frameworks experience reduced latency and improved throughput when operating on high-speed DDR5 RDIMMs.

This memory category also supports faster data movement between memory and accelerators such as GPUs and DPUs, which is increasingly important in heterogeneous computing environments. By minimizing data transfer delays, DDR5 6400MHz server memory contributes to overall system responsiveness and predictable performance under heavy workloads.

96GB High-Capacity RDIMM Design for Scalable Infrastructure

The 96GB capacity class within DDR5 server memory represents a strategic balance between density and performance. This category enables server administrators to deploy large memory footprints using fewer DIMM slots, which is especially advantageous in dual-socket and quad-socket servers with limited physical memory slots. High-capacity RDIMMs reduce the complexity of memory configurations while supporting larger datasets, more virtual machines, and higher consolidation ratios.

In enterprise data centers, memory scalability directly impacts total cost of ownership. By utilizing 96GB DDR5 RDIMMs, organizations can achieve required memory capacities with fewer modules, lowering power consumption per gigabyte and simplifying maintenance. This category is well-suited for memory-intensive applications such as SAP HANA, large-scale virtualization clusters, and high-density cloud environments where maximizing memory per node is essential.

Dual Rank Memory Architecture Advantages

Dual rank DDR5 RDIMMs are designed with two independent ranks of memory chips on a single module, allowing the memory controller to interleave access between ranks. This improves overall memory throughput and efficiency by enabling better utilization of the memory bus. The dual-rank architecture within this category enhances performance in multi-threaded workloads and contributes to smoother scaling as memory demand increases.

For enterprise servers, dual-rank 96GB DDR5 modules provide an optimal balance between rank count and signal stability. This design supports high-speed operation at 6400MHz while maintaining compatibility with advanced server memory controllers. As a result, this category delivers consistent performance across a wide range of real-world workloads.

ECC Registered Memory for Mission-Critical Reliability

Error Correcting Code Registered DIMM memory is a defining feature of enterprise server memory categories. The ECC Registered architecture used in DDR5 RDIMMs ensures data integrity by detecting and correcting single-bit memory errors and detecting multi-bit errors before they can impact system stability. This is essential in mission-critical environments where data corruption can lead to application crashes, financial losses, or compromised data integrity.

Registered memory includes a register between the memory controller and the DRAM chips, reducing electrical load and improving signal quality. This allows servers to support larger memory capacities and higher DIMM counts per channel without sacrificing stability. The ECC Registered DDR5 category is specifically engineered for continuous operation in data centers, supporting 24/7 workloads with minimal risk of memory-related failures.

Role of ECC in Enterprise and Cloud Computing

In enterprise and cloud infrastructures, ECC memory is not optional but a foundational requirement. The DDR5 ECC RDIMM category supports critical applications such as financial transaction systems, healthcare data platforms, and large-scale cloud services where even a single memory error can have cascading effects. By proactively correcting errors, ECC DDR5 memory contributes to system uptime, application reliability, and compliance with industry standards.

This category also aligns with virtualization best practices, where multiple workloads share the same physical memory resources. ECC protection ensures that memory errors in one virtual machine do not propagate and affect others, maintaining isolation and reliability across the entire server environment.

CL52 Latency Characteristics in High-Speed DDR5 Memory

CAS latency CL52 is a standard timing specification for high-speed DDR5 6400MHz server memory. While the numerical latency value appears higher compared to DDR4, the significantly increased operating frequency results in lower effective access time. This category is optimized to deliver a balance between high bandwidth and acceptable latency, ensuring that enterprise workloads benefit from faster data transfer rates without compromising responsiveness.

DDR5 memory architecture introduces improvements such as dual 32-bit subchannels per DIMM, which enhance efficiency and reduce latency penalties. Within this category, CL52 timings are carefully tuned to maintain stability at high frequencies while supporting consistent performance under sustained workloads typical of server environments.

1.1V Power Efficiency and Thermal Optimization

Operating at a nominal voltage of 1.1V, DDR5 server memory represents a significant improvement in power efficiency compared to previous generations. This lower operating voltage reduces overall power consumption and heat generation, which is critical in dense data center deployments. The 1.1V DDR5 category supports higher memory densities without proportionally increasing thermal output, enabling more efficient cooling strategies.

Improved power management features integrated into DDR5 memory modules, including on-DIMM power management integrated circuits, allow for more precise voltage regulation. This contributes to improved signal integrity and energy efficiency across varying workloads. For enterprise operators, this translates into reduced operational costs and improved sustainability metrics.

Thermal Stability in High-Density Server Environments

High-capacity 96GB DDR5 RDIMMs are designed to operate reliably within the thermal constraints of enterprise servers. This category emphasizes thermal stability through advanced PCB layouts and optimized component placement. Efficient heat dissipation ensures that memory performance remains consistent even under continuous high-load conditions.

Thermal optimization is especially important in modern data centers that prioritize airflow efficiency and rack density. DDR5 1.1V memory modules support these design goals by minimizing heat output while delivering high performance, making them ideal for scalable server deployments.

288-Pin DDR5 RDIMM Form Factor and Platform Compatibility

The 288-pin RDIMM form factor is the industry standard for DDR5 server memory, ensuring broad compatibility with current-generation server motherboards. This category is specifically designed for enterprise platforms that support DDR5 RDIMM technology, including leading server processors and chipsets. The standardized form factor simplifies system integration and upgrade planning for IT administrators.

DDR5 RDIMMs are not backward compatible with DDR4 slots, reinforcing the importance of platform alignment when deploying this memory category. Servers designed for DDR5 benefit from improved memory channel architecture, higher supported capacities, and enhanced reliability features that are integral to this generation of server memory.

Enterprise Use Cases and Workload Optimization

The DDR5 96GB ECC Registered memory category is optimized for a wide range of enterprise and data center workloads. Virtualization environments benefit from higher memory density and bandwidth, allowing more virtual machines per host with consistent performance. In-memory databases leverage the high capacity and speed to process large datasets with minimal latency.

High-performance computing applications, including scientific research and engineering simulations, utilize DDR5 memory bandwidth to accelerate computation and data analysis. AI and machine learning workloads also benefit from faster memory access, improving training and inference efficiency. This category is designed to support evolving enterprise requirements and future workload demands.

Long-Term Scalability and Investment Protection

Adopting DDR5 6400MHz server memory provides long-term scalability for enterprise infrastructure. As software and workloads continue to demand more memory and bandwidth, this category offers a future-ready foundation that extends server lifespan. High-capacity RDIMMs allow incremental upgrades without complete system replacement, protecting capital investments.

By aligning with industry standards and next-generation server platforms, the DDR5 ECC Registered memory category ensures compatibility with future processor advancements. This makes it an essential component for organizations planning sustainable and scalable IT infrastructures.