HMCG84AHBRA286N Hynix 32GB PC5-51200 DDR5-6400MHz 1Rx4 ECC RAM

Highlights of Hynix 32GB PC5-51200 RAM

The Hynix HMCG84AHBRA286N 32GB PC5-51200 DDR5-6400MHz 1Rx4 ECC RAM is a high-performance memory solution designed for reliability and speed. This advanced module ensures seamless multitasking and optimized computing efficiency.

Main Information

• Brand Name: Hynix
• Model Number: HMCG84AHBRA286N
• Category: 32GB DDR5 SDRAM Memory Module

Technical Specifications

Capacity and Technology

• Storage Size: 32GB
• Memory Type: DDR5 SDRAM
• Module Count: 1 x 32GB

Performance Details

• Speed: 6400MT/s DDR5-6400 / PC5-51200
• Error Correction: ECC (Error-Correcting Code)
• Latency: CL42

Advanced Features

• Dual Rank architecture
• Registered design for stability

Physical Characteristics

Form Factor

• Type: 288-pin RDIMM

Dimensions

• Height: 2.00 inches
• Depth: 7.00 inches

Weight

• Shipping Weight: 0.20 lb

Enterprise DDR5 RDIMM CL42 ECC Registered Memory Overview

The enterprise DDR5 registered memory module category represents a major evolution in server-class system memory, designed to address the growing demands of data centers, cloud infrastructure, virtualization platforms, artificial intelligence workloads, and high-performance computing environments. Within this category, DDR5 RDIMM solutions deliver significant improvements in bandwidth, capacity scaling, signal integrity, and power efficiency compared to previous DDR4 generations. The Hynix HMCG84AHBRA286N 32GB DDR5 RDIMM memory module fits squarely into this category, offering a balanced combination of speed, reliability, and compatibility for modern server architectures.

DDR5 registered memory modules are engineered specifically for enterprise systems that require consistent uptime, predictable performance, and support for large memory footprints. By integrating a register clock driver between the memory controller and DRAM devices, RDIMM modules reduce electrical load and enable higher module capacities and stable operation at elevated frequencies. This architectural design makes DDR5 RDIMM memory a foundational component for scalable server platforms where performance and reliability are equally critical.

Hynix DDR5 RDIMM Technology

SK hynix is widely recognized as a leading manufacturer of enterprise-grade memory technologies, supplying DRAM solutions that meet strict industry standards for quality, compatibility, and long-term availability. The HMCG84AHBRA286N module reflects this expertise by leveraging advanced DDR5 SDRAM fabrication processes, refined binning methodologies, and comprehensive validation across major server platforms. As part of the DDR5 RDIMM category, this module is optimized for use in mission-critical environments where memory stability and data integrity directly impact system performance.

The module’s 32GB capacity and registered architecture allow it to support dense memory configurations without compromising signal quality. This makes it particularly suitable for multi-socket servers, virtualization hosts, and memory-intensive enterprise applications. The design philosophy behind this DDR5 RDIMM category emphasizes not only raw speed, but also predictable latency behavior and long-term operational reliability.

DDR5-6400 Performance Characteristics

Operating at a data rate of 6400MHz, corresponding to the PC5-51200 specification, this DDR5 RDIMM module delivers a substantial increase in memory bandwidth compared to earlier DDR5 speeds and legacy DDR4 memory. Higher bandwidth enables faster data movement between the CPU and memory subsystem, reducing bottlenecks in workloads such as in-memory databases, real-time analytics, and high-throughput transaction processing.

The increased data transfer rate is especially beneficial in modern server processors that feature high core counts and wide memory buses. As CPUs continue to scale horizontally, memory subsystems must keep pace to avoid underutilization of processing resources. The DDR5-6400 speed grade helps ensure that compute cores remain efficiently fed with data, supporting consistent performance under heavy load conditions.

PC5-51200 Bandwidth Advantages

The PC5-51200 classification signifies a peak theoretical bandwidth of 51.2GB per second per module. This level of throughput is critical for enterprise environments that rely on rapid memory access patterns. Applications such as virtualization platforms, container orchestration systems, and large-scale caching layers benefit from the improved throughput by achieving faster response times and better overall system efficiency.

Within the DDR5 RDIMM category, PC5-51200 modules represent a performance tier designed for next-generation server deployments. They enable system architects to design balanced platforms where memory bandwidth aligns closely with CPU and I/O capabilities, reducing the likelihood of performance imbalance across subsystems.

ECC Registered Memory Architecture

Error Correcting Code technology is a defining feature of enterprise DDR5 RDIMM memory. The Hynix HMCG84AHBRA286N module incorporates ECC functionality to detect and correct single-bit memory errors in real time. This capability is essential in server environments where even minor data corruption can lead to application crashes, data loss, or security vulnerabilities.

The registered design further enhances stability by buffering command and address signals. This reduces electrical stress on the memory controller and allows for higher module densities and improved signal integrity at elevated speeds. Together, ECC and registered architecture form the backbone of enterprise memory reliability, making DDR5 RDIMM modules a preferred choice for business-critical systems.

Benefits of ECC in Enterprise Workloads

ECC memory plays a crucial role in maintaining data accuracy in environments where memory is under constant heavy utilization. Virtual machines, databases, and analytics engines often keep large datasets resident in memory for extended periods. ECC protection ensures that transient errors caused by electrical noise or cosmic radiation are corrected automatically, preserving data integrity without impacting application performance.

For organizations operating around-the-clock infrastructure, ECC memory also contributes to improved system uptime. By preventing silent data corruption and reducing the likelihood of unexpected crashes, ECC-equipped DDR5 RDIMM modules help maintain service availability and operational continuity.

Registered DIMM Signal Integrity

The registered nature of this DDR5 RDIMM module introduces a register clock driver that re-drives control signals, effectively isolating the memory controller from the electrical load of the DRAM devices. This design enables stable operation at high frequencies such as 6400MHz while supporting higher capacity modules like 32GB and beyond.

In multi-DIMM configurations, registered memory ensures consistent signal timing and reduces the risk of data errors. This is particularly important in dual-socket and quad-socket server platforms where multiple memory channels are populated to maximize capacity and bandwidth.

1Rx4 Memory Organization Explained

The Hynix HMCG84AHBRA286N module features a 1Rx4 memory organization, indicating a single rank configuration with x4 DRAM devices. This layout is commonly used in enterprise RDIMM modules to enhance reliability and support advanced ECC schemes. The x4 device width allows for improved fault isolation and more robust error correction compared to x8 configurations.

Single-rank modules also offer advantages in terms of signal loading and latency behavior. In many server platforms, 1Rx4 DDR5 RDIMM modules provide an optimal balance between capacity, performance, and compatibility, making them a popular choice for enterprise deployments that prioritize reliability.

Advantages of x4 DRAM Devices

x4 DRAM devices enable more granular error detection and correction by distributing data across a larger number of memory chips. This enhances the effectiveness of ECC and supports advanced reliability features such as chip-level fault isolation. For mission-critical workloads, this added layer of protection can be a decisive factor in maintaining data integrity.

Within the DDR5 RDIMM category, x4-based modules are often recommended for enterprise servers and workstations where system stability and error resilience are paramount. The Hynix module aligns with these requirements by employing a proven x4 DRAM architecture.

Single Rank Performance Considerations

Single-rank DDR5 RDIMM modules can offer predictable latency characteristics and reduced electrical complexity compared to multi-rank designs. This can translate into more consistent performance, especially in systems that populate multiple memory channels. By minimizing rank switching overhead, single-rank modules contribute to smoother memory access patterns under sustained load.

For system integrators and IT administrators, selecting 1Rx4 modules simplifies memory configuration planning and ensures broad compatibility with server motherboard designs that are optimized for registered DDR5 memory.

Latency and Timing Characteristics

The CL42 latency rating of this DDR5-6400 RDIMM module reflects the balance between high frequency operation and stable timing parameters. While absolute latency values increase with higher clock speeds, the overall effective latency remains competitive due to the significantly increased bandwidth and improved DDR5 architecture.

In enterprise environments, memory latency must be evaluated in the context of total system performance. The combination of high bandwidth, efficient prefetch mechanisms, and improved memory controller designs in modern CPUs ensures that DDR5-6400 CL42 memory delivers excellent real-world performance across a wide range of workloads.

Impact of CAS Latency in Server Applications

CAS latency influences the time it takes for the memory module to respond to a read request. In server applications that involve frequent random memory accesses, such as database indexing and transaction processing, latency characteristics play an important role. The CL42 timing of this module is optimized to work in harmony with DDR5’s architectural enhancements, ensuring that latency does not become a performance bottleneck.

When paired with processors designed for DDR5 memory, the latency profile of this RDIMM module supports efficient pipeline utilization and sustained throughput, particularly in multi-threaded enterprise workloads.

DDR5 Architectural Enhancements

DDR5 introduces several architectural improvements that mitigate the impact of higher CAS latency values. These include increased bank groups, improved burst lengths, and on-die ECC for internal DRAM reliability. Together, these enhancements enable DDR5 RDIMM modules to deliver superior performance even as clock speeds and capacities continue to scale.

The Hynix DDR5 RDIMM module benefits from these advancements, providing a modern memory solution that aligns with the needs of contemporary server architectures.

Power Efficiency and 1.2V Operation

Operating at 1.2 volts, the HMCG84AHBRA286N DDR5 RDIMM module reflects the power efficiency improvements inherent in the DDR5 standard. Lower operating voltage contributes to reduced power consumption and heat generation, which are critical considerations in dense server environments.

Energy efficiency is a key factor in data center operations, influencing cooling requirements, operational costs, and environmental impact. DDR5 RDIMM memory modules designed for lower voltage operation help organizations optimize their infrastructure for both performance and sustainability.

Thermal Management Benefits

Reduced voltage operation leads to lower thermal output, which in turn simplifies cooling strategies in high-density server racks. By minimizing heat generation at the memory level, DDR5 RDIMM modules support more efficient airflow management and reduce the strain on cooling systems.

This thermal efficiency is particularly valuable in large-scale deployments where even small reductions in power consumption per component can result in significant cost savings over time.

Data Center Energy Optimization

Power-efficient memory contributes to overall data center energy optimization by lowering the total power draw of each server node. When multiplied across hundreds or thousands of servers, the benefits of DDR5’s reduced voltage operation become substantial. The Hynix DDR5 RDIMM module aligns with modern data center strategies focused on maximizing performance per watt.

288-Pin RDIMM Form Factor Compatibility

The 288-pin RDIMM form factor is the standard physical interface for DDR5 registered memory modules, ensuring compatibility with a wide range of enterprise server motherboards and platforms. This standardized design simplifies system integration and supports seamless upgrades from earlier DDR5 RDIMM configurations.

Server manufacturers design their platforms to accommodate 288-pin RDIMM modules with precise electrical and mechanical specifications. The Hynix HMCG84AHBRA286N module adheres to these standards, ensuring reliable installation and operation across supported systems.

Server Platform Integration

Compatibility with major server platforms is a defining characteristic of enterprise DDR5 RDIMM memory. This module is engineered to meet industry specifications for signal timing, voltage tolerance, and thermal performance, enabling it to function reliably in diverse server environments.

For IT professionals planning memory upgrades or new deployments, standardized RDIMM form factors reduce complexity and minimize the risk of compatibility issues.

Scalability in Multi-DIMM Configurations

The registered design and standardized pin layout support scalable memory configurations, allowing multiple RDIMM modules to be installed per channel where supported by the platform. This scalability is essential for servers that require large memory capacities to support virtualization, in-memory analytics, and enterprise resource planning systems.

By selecting DDR5 RDIMM modules with proven compatibility and performance characteristics, organizations can design flexible and future-ready memory architectures.

Enterprise Use Cases and Workload Alignment

The Hynix 32GB DDR5-6400 RDIMM module is well suited for a wide range of enterprise use cases that demand high memory bandwidth, reliability, and scalability. Virtualized environments benefit from the ability to allocate substantial memory resources to multiple virtual machines without sacrificing performance. Database servers leverage the high throughput and ECC protection to maintain fast and accurate data access.

High-performance computing workloads, including scientific simulations and data modeling, also benefit from the increased bandwidth and stable operation of DDR5 RDIMM memory. By aligning memory performance with CPU capabilities, these workloads can achieve faster time-to-result and improved computational efficiency.

Virtualization and Cloud Infrastructure

In virtualization and cloud environments, memory density and reliability are critical factors. DDR5 RDIMM modules enable higher memory capacities per server, allowing more virtual machines or containers to run concurrently. ECC protection ensures data integrity across shared resources, reducing the risk of performance degradation or service interruption.

The performance characteristics of DDR5-6400 memory support dynamic workloads where memory access patterns vary rapidly, ensuring consistent quality of service for hosted applications.

Data Analytics and In-Memory Computing

Data analytics platforms increasingly rely on in-memory processing to deliver real-time insights. The high bandwidth of PC5-51200 DDR5 RDIMM memory accelerates data ingestion and query execution, enabling faster analysis of large datasets. This capability is essential for organizations that depend on timely data-driven decision-making.

In-memory computing frameworks benefit from the combination of capacity, speed, and reliability offered by enterprise DDR5 RDIMM modules, making them a foundational component of modern analytics infrastructure.