HMCG88AHBRA291N Hynix 32GB PC5-51200 DDR5-6400MHz SDRM 288-pin 2Rx8 ECC Memory Module

Hynix 32GB DDR5 ECC Memory

The Hynix HMCG88AHBRA291N delivers high-performance computing with advanced DDR5 SDRAM technology, ensuring reliability and speed for enterprise and professional workloads.

General Information

• Brand: Hynix
• Model Number: HMCG88AHBRA291N
• Category: 32GB DDR5 SDRAM Memory Module

Technical Specifications

Core Features

• Capacity: 32GB
• Memory Type: DDR5 SDRAM
• Module Count: 1 x 32GB
• Speed: 6400MT/s (DDR5-6400 / PC5-51200)

Performance Enhancements

• Error Correction: ECC (Error-Correcting Code)
• Signal Handling: Registered
• Latency: CL46
• Rank Configuration: 2Rx8

Physical Characteristics

Design Attributes

• Form Factor: 288-pin RDIMM

Dimensions & Weight

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

HMCG88AHBRA291N 32GB DDR5 SDRAM Memory Overview

The Hynix HMCG88AHBRA291N 32GB PC5-51200 DDR5-6400MT/s SDRM 288-pin 2Rx8 ECC Memory Module belongs to a high-performance enterprise memory category designed for modern server platforms, data centers, and mission-critical computing environments. This category represents the evolution of synchronous dynamic random-access memory technology, moving from DDR4 to DDR5 with significant improvements in bandwidth density, reliability, power efficiency, and scalability. Modules within this category are engineered to support advanced workloads such as virtualization, cloud-native applications, artificial intelligence inference, real-time analytics, and high-throughput transactional databases.

This category is defined by its use of DDR5 SDRAM standards, operating at data transfer rates of up to 6400 megatransfers per second, which positions it among the highest-performing JEDEC-compliant memory solutions available. The PC5-51200 classification reflects a theoretical peak bandwidth of 51.2 GB/s per module, making this category essential for processors that demand rapid memory access and sustained throughput. These memory modules are optimized for server and workstation environments where performance consistency, uptime, and data integrity are non-negotiable.

DDR5 Technology Advancements in Server Memory Categories

The DDR5 memory category introduces a paradigm shift in how system memory is structured and managed. Unlike previous generations, DDR5 modules integrate dual independent 32-bit subchannels per DIMM, which enhances parallelism and reduces latency under multi-threaded workloads. This structural change allows CPUs to access memory more efficiently, particularly in environments where multiple cores and threads are operating simultaneously. The Hynix HMCG88AHBRA291N exemplifies this architectural improvement by leveraging advanced silicon design and refined signal integrity.

Another defining characteristic of this category is its improved power management. DDR5 memory modules include an on-module power management integrated circuit, shifting voltage regulation from the motherboard to the DIMM itself. This enables more granular voltage control, reduces electrical noise, and improves overall power efficiency. In enterprise deployments, this translates to lower operational costs, improved thermal management, and greater system stability under heavy loads.

High-Speed Data Transfer and PC5-51200 Classification

The PC5-51200 designation places this memory module in a performance-focused subcategory where bandwidth is a primary differentiator. At 6400MT/s, memory access speeds are significantly higher than earlier DDR5 variants and dramatically surpass DDR4 standards. This level of performance is particularly relevant for modern CPUs with wide memory buses and high core counts, where memory bottlenecks can otherwise limit computational efficiency.

Within this subcategory, memory modules are validated to maintain signal integrity at high frequencies while ensuring compliance with strict timing requirements. This balance of speed and reliability makes the category suitable for enterprise servers running latency-sensitive applications, in-memory databases, and large-scale virtualization environments where memory throughput directly impacts service quality.

Error Correction Code ECC as a Core Category Feature

ECC memory is a defining attribute of this category, designed to detect and correct single-bit memory errors in real time. The inclusion of ECC functionality significantly enhances data integrity, making this category indispensable for systems where even minor data corruption could lead to system crashes, incorrect computations, or security vulnerabilities. The Hynix HMCG88AHBRA291N module integrates ECC at the hardware level, ensuring transparent error handling without performance penalties.

In enterprise and data center environments, ECC memory is often a requirement rather than an option. This category supports long-duration workloads that run continuously, sometimes for months or years without reboot. ECC capability reduces the risk of soft errors caused by cosmic radiation, electrical interference, or component aging, thereby contributing to system resilience and operational continuity.

32GB Capacity and Memory Density Considerations

The 32GB capacity places this module in a balanced density segment within the DDR5 ECC memory category. This capacity is widely adopted in enterprise servers as it allows for flexible memory scaling while maintaining optimal performance characteristics. Systems can be populated with multiple 32GB modules to achieve high total memory capacities without sacrificing frequency or stability.

Higher memory density is particularly important for virtualization platforms and containerized environments, where each virtual machine or container consumes a portion of system memory. The 32GB module capacity allows administrators to optimize memory allocation, reduce the number of DIMMs required, and improve airflow and thermal efficiency within server chassis.

2Rx8 Rank Configuration and Performance Implications

The 2Rx8 configuration indicates a dual-rank memory architecture using x8 DRAM chips. This configuration is a common choice in enterprise memory categories due to its balance between performance and compatibility. Dual-rank modules can offer improved memory interleaving, which can enhance throughput in certain workloads compared to single-rank designs.

Within this category, 2Rx8 modules are widely supported by server-class CPUs and chipsets, ensuring broad platform compatibility. This makes them suitable for system integrators and IT professionals who require predictable behavior across diverse hardware configurations.

288-Pin DIMM Form Factor in Modern Server Platforms

The 288-pin DIMM form factor is the standard physical interface for DDR5 memory modules in server and workstation systems. This category adheres to JEDEC specifications for pin layout, signaling, and mechanical dimensions, ensuring compatibility with a wide range of motherboards and server platforms. The physical design supports high signal integrity at elevated frequencies, which is essential for stable DDR5 operation.

Memory modules in this category are designed for easy installation and maintenance in enterprise systems. The standardized form factor allows for tool-less replacement and supports hot-swappable configurations in certain server architectures, contributing to reduced downtime and simplified upgrades.

Thermal Design and Operational Stability

As memory speeds and densities increase, thermal management becomes a critical consideration. This category incorporates advanced thermal design principles to ensure stable operation under sustained loads. High-quality materials, optimized PCB layouts, and efficient power regulation help minimize heat generation and distribution.

In data center environments, effective thermal performance contributes to overall system efficiency and longevity. Memory modules that operate within optimal temperature ranges are less prone to errors and degradation, reinforcing the reliability expectations associated with this category.

Compatibility with Next-Generation Server CPU

The Hynix HMCG88AHBRA291N memory module category is closely aligned with next-generation server processors that support DDR5 memory. This includes platforms designed for high core counts, advanced memory controllers, and multi-socket configurations. The category ensures seamless integration with these processors, enabling them to fully utilize available memory bandwidth and capacity.

Support for advanced features such as memory encryption, address translation services, and quality of service controls further enhances the value of this category in enterprise environments. These capabilities enable secure, efficient, and predictable memory behavior across diverse workloads.

Scalability in Multi-DIMM and Multi-Socket Systems

Scalability is a defining characteristic of this memory category. Modules are designed to operate reliably in configurations with multiple DIMMs per channel and across multiple CPU sockets. This allows organizations to build systems that scale from modest configurations to large memory footprints without compromising performance or stability.

The ability to scale memory capacity and bandwidth is particularly important in cloud infrastructure and high-performance computing clusters, where workloads can vary significantly over time. This category supports such scalability by maintaining consistent performance characteristics across a wide range of configurations.