HMCG78AHBRA292N Hynix 16GB PC5-51200 DDR5-6400MT/s 1Rx8 ECC Memory

Hynix HMCG78AHBRA292N 16GB DDR5 Memory Kit

The Hynix HMCG78AHBRA292N represents a significant advancement in server memory technology, delivering exceptional performance, reliability, and efficiency for modern data center environments, enterprise servers, and high-performance computing applications. This 16GB DDR5 module is engineered to meet the rigorous demands of 24/7 operation while providing the bandwidth necessary for data-intensive workloads.

Key Specifications

This memory module incorporates the latest DDR5 architecture to deliver substantial improvements over previous DDR4 generations. With increased data rates, enhanced channel efficiency, and superior power management, the HMCG78AHBRA292N is optimized for next-generation server platforms requiring uncompromising performance and stability.

Single Module Capacity

The Hynix HMCG78AHBRA292N features a 16GB capacity on a single module, providing substantial memory resources for various server applications. This density allows system builders to achieve significant total memory configurations in multi-channel architectures while minimizing physical slot requirements.

Module Organization

Configured as a 1Rx8 (Single Rank, x8 organization) module, this memory optimizes signal integrity and access patterns. The single-rank design reduces electrical load on the memory controller, potentially enabling higher operating frequencies and improved timing characteristics compared to multi-rank configurations at similar densities.

Performance Characteristics

Data Transfer Rate

Operating at 6400 MT/s (MegaTransfers per second), this DDR5 module delivers substantial bandwidth improvement over previous generations. The increased transfer rate enables faster data access and processing, significantly reducing latency for memory-intensive applications and improving overall system responsiveness.

PC5-51200 Bandwidth Classification

The PC5-51200 designation indicates a peak theoretical bandwidth of approximately 51.2 GB/s per module. This substantial bandwidth enables efficient handling of demanding workloads including virtualization, database operations, scientific computing, and large-scale transactional processing.

CAS Latency Timing

With a CAS Latency of CL46, this module balances high-speed operation with responsive access times. The optimized timing ensures efficient data retrieval while maintaining stability at the specified 6400 MT/s data rate, providing a balanced performance profile for diverse server applications.

Advanced DDR5 Architecture Features

The Hynix HMCG78AHBRA292N leverages numerous DDR5 architectural innovations that represent fundamental improvements over previous memory technologies. These enhancements collectively contribute to higher performance, improved power efficiency, and enhanced reliability for critical server environments.

Server-Grade Reliability Features

Engineered specifically for mission-critical server environments, the Hynix HMCG78AHBRA292N incorporates multiple reliability, availability, and serviceability (RAS) features that ensure data integrity and system stability during continuous operation.

Error Correction Capabilities

This module features ECC technology that detects and corrects single-bit memory errors in real-time, preventing data corruption and system crashes. The ECC functionality is essential for maintaining data integrity in servers handling critical applications, financial transactions, and valuable datasets.

On-Die ECC Innovation

DDR5 introduces On-Die ECC, which corrects errors within the DRAM chips themselves before they reach the memory bus. This additional layer of error correction works in conjunction with traditional ECC to provide comprehensive protection against various types of memory errors, including those that occur during cell refresh operations.

RDIMM Advantages

As a Registered DIMM (RDIMM), this module incorporates a register between the memory controller and DRAM chips. This register buffers command and address signals, reducing electrical load on the memory controller and enabling support for higher module densities and more DIMMs per channel while maintaining signal integrity.

Stability in Multi-DIMM

The registered design ensures stable operation in memory-intensive servers populated with multiple DIMMs. By improving signal quality and reducing timing constraints, RDIMMs enable more reliable performance in fully configured systems, making them ideal for high-capacity server implementations.

288-Pin DIMM

This module utilizes the standard 288-pin DDR5 DIMM form factor with a carefully engineered pin layout that prevents accidental insertion into incompatible DDR4 slots. The physical design ensures proper alignment and secure connection within server memory sockets.

Mechanical Dimensions

The module conforms to standard DDR5 DIMM dimensions, ensuring compatibility with server chassis and cooling solutions. The precise physical specifications guarantee proper fitment in designated memory slots and alignment with retention mechanisms.

Application Environments and Use Cases

The Hynix HMCG78AHBRA292N 16GB DDR5 RDIMM is engineered to excel in diverse server environments where performance, reliability, and efficiency are paramount considerations for operational success.

Enterprise Server Deployment

This memory module is ideally suited for enterprise servers supporting business-critical applications, database management systems, and transaction processing. The combination of high bandwidth, ECC protection, and registered architecture ensures reliable performance for essential business operations.

Virtualization Platforms

The 16GB capacity and high-speed operation make this module excellent for virtualization hosts running multiple virtual machines. The substantial bandwidth supports memory-intensive virtualized environments, while ECC protection maintains integrity across diverse workloads and guest operating systems.

High-Performance Computing

In technical computing environments, including scientific research, engineering simulation, and financial modeling, this DDR5 module delivers the performance necessary for complex computations and large dataset processing. The high bandwidth accelerates time-to-solution for computationally intensive tasks.

Performance Advancements

Bandwidth Improvement

DDR5's 6400 MT/s data rate represents a significant increase over typical DDR4 server memory speeds, which commonly operate at 3200 MT/s or lower. This doubling of data rate translates to substantially higher available memory bandwidth for data-intensive applications.

Architectural Efficiency

The dual sub-channel architecture, increased burst length, and improved command bus efficiency collectively contribute to higher effective bandwidth utilization compared to DDR4, delivering better performance beyond the raw data rate improvement alone.

Power Efficiency

The reduction from DDR4's 1.2V to DDR5's 1.1V operating voltage represents meaningful power savings, particularly in densely populated servers with substantial memory capacity. The integrated PMIC further optimizes power delivery efficiency.