Hynix 64GB PC5-51200 DDR5 HMCG94AHBRA486N 6400MHz SDRAM RDIMM RAM

HMCG94AHBRA486N Hynix 64GB PC5-51200 DDR5 6400MHz 2Rx4 ECC RDIMM Cl46 SDRAM 288-Pin Memory Module Overview

The HMCG94AHBRA486N Hynix 64GB PC5-51200 DDR5 6400MHz 2Rx4 ECC RDIMM Cl46 SDRAM 288-pin Memory Module represents the pinnacle of high-performance server memory, engineered for enterprise data centers, virtualization clusters, artificial intelligence (AI) workloads, and high-performance computing (HPC) environments. With a massive 64GB capacity per module and industry-leading DDR5 6400MHz speed, this module provides unparalleled memory bandwidth, low latency, and robust error correction via ECC, ensuring reliable operation in mission-critical applications. Its RDIMM (Registered DIMM) architecture provides enhanced stability and scalability for large-scale memory deployments, making it ideal for servers that require extreme data throughput and consistent performance across multiple workloads.

Technical Specifications of HMCG94AHBRA486N DDR5 RDIMM

High Capacity 64GB Memory Module

Featuring 64GB of memory per module, the HMCG94AHBRA486N allows enterprises to deploy higher memory densities with fewer DIMMs. This reduces power consumption, simplifies system design, and enhances efficiency for virtualization, database, and HPC workloads that rely on large-scale in-memory processing.

DDR5 6400MHz Speed and PC5-51200 Bandwidth

The DDR5 6400MHz speed coupled with PC5-51200 bandwidth provides up to 51.2 GB/s per module of data transfer, enabling high-throughput performance for demanding workloads. Faster memory access enhances application response times, accelerates AI training, and improves analytics efficiency in real-time data processing environments.

ECC (Error-Correcting Code) Reliability

This module integrates ECC technology to automatically detect and correct memory errors, ensuring data integrity, minimizing system crashes, and providing enterprise-grade reliability. ECC memory is critical for financial services, healthcare, cloud infrastructures, and government applications where data precision is paramount.

2Rx4 Rank Configuration

The 2Rx4 dual-rank design optimizes parallelism and memory efficiency, allowing multiple ranks to operate simultaneously for improved bandwidth utilization. This ensures consistent performance across memory-intensive server workloads.

288-Pin RDIMM Architecture

Designed as a 288-pin RDIMM, the module incorporates a register buffer to reduce electrical load on the memory controller, supporting higher memory capacities and more memory channels while maintaining signal integrity and system stability.

Advantages of DDR5 Server Memory Technology

Enhanced Bandwidth and Low Latency

DDR5 introduces significant improvements over DDR4, including higher frequencies, increased bandwidth, and lower latency. With 6400MHz speed, the HMCG94AHBRA486N ensures faster data transfers and reduced bottlenecks, enabling enterprise workloads to execute efficiently.

Power Efficiency

Operating at a low voltage of 1.1V, this DDR5 module consumes less power while delivering high performance. Integrated Power Management ICs (PMICs) at the module level allow precise voltage regulation, reducing overall energy consumption in data centers.

On-Die ECC for Increased Reliability

In addition to module-level ECC, DDR5 incorporates on-die ECC for internal error correction at the chip level. This dual-layer error correction significantly improves system uptime and ensures data accuracy for critical applications.

Scalability for Enterprise Environments

With high-capacity modules like the HMCG94AHBRA486N, servers can scale to terabytes of memory, supporting large-scale virtualization, big data analytics, AI, and HPC clusters. Fewer DIMMs are required to reach higher capacities, simplifying system architecture and reducing thermal and power overhead.

Enterprise Workload Applications

Big Data Analytics

Data-intensive platforms such as SAP HANA, Hadoop, and Apache Spark rely on large in-memory datasets for faster processing. The high capacity and speed of the HMCG94AHBRA486N reduces query latency, enhances throughput, and ensures reliable processing of real-time analytics.

High-Performance Computing (HPC)

HPC applications, including simulations, computational research, and scientific modeling, require both high memory bandwidth and low latency. The HMCG94AHBRA486N RDIMM delivers the necessary performance and reliability to handle these complex workloads without errors.

Database Acceleration

Enterprise database platforms, including SQL Server, Oracle, and NoSQL systems, benefit from the module’s high capacity, ECC protection, and fast memory access. By providing ample in-memory storage, the HMCG94AHBRA486N reduces transaction latency and accelerates query execution.

Reliability and Data Integrity Features

Module-Level ECC

ECC technology corrects single-bit errors and detects double-bit errors, maintaining data integrity for mission-critical operations. This feature reduces system downtime and protects against data corruption.

On-Die ECC

DDR5 on-die ECC adds an extra layer of protection, ensuring errors within the DRAM chip are corrected before affecting system-level operations. This improves overall memory reliability and system uptime.

Thermal Sensors

Integrated thermal sensors allow real-time monitoring of module temperature, ensuring optimal cooling strategies and preventing overheating that could lead to throttling or system instability.

RDIMM Stability

The registered DIMM buffer reduces electrical load on the memory controller, enabling stable operation even with high-density memory configurations. This is critical for servers hosting multiple workloads simultaneously.

Deployment and Compatibility Guidelines

System Compatibility

The HMCG94AHBRA486N is designed for enterprise-class servers supporting DDR5 RDIMM ECC modules. It is not compatible with consumer desktops or systems requiring unbuffered DIMMs (UDIMMs).

Advantages for Data Centers

Scalability

High-capacity modules enable data centers to scale memory across servers efficiently, supporting terabyte-level memory configurations for advanced workloads.

Energy Efficiency

Low voltage operation reduces power consumption and heat generation, improving operational costs and sustainability.

Uptime and Reliability

ECC protection, thermal monitoring, and RDIMM stability minimize system downtime and data loss, essential for mission-critical applications.