HMCG78AGBRA192N Hynix 16GB 5600MHz PC5-44800 Cl46 SDRAM 288-pin RDIMM RAM

Hynix HMCG78AGBRA192N 16GB DDR5 Memory Kit

The Hynix HMCG78AGBRA192N represents a significant advancement in server memory technology, delivering 16GB of high-performance DDR5 SDRAM. This module operates at a data rate of 5600 million transfers per second (MT/s), classified under the PC5-44800 designation. The module utilizes a 1Rx8 configuration with Error Correction Code (EC8) capabilities and Registered DIMM architecture, specifically engineered for server environments requiring maximum reliability and performance. Operating at a low voltage of 1.1V, this memory module provides enhanced power efficiency compared to previous DDR4 generations while delivering superior bandwidth and processing capabilities for modern server applications.

Memory Capacity

This single 16GB module provides substantial memory capacity for server systems. The 1x16GB configuration indicates a single module containing 16 gigabytes of memory storage. This capacity is ideal for servers requiring balanced memory distribution across multiple channels or systems where future expansion is anticipated. The 1Rx8 organization refers to the physical arrangement of memory chips on the module, with single rank architecture and x8 data width per chip. This configuration optimizes signal integrity and allows for efficient memory access patterns in server workloads, particularly beneficial for applications requiring consistent, high-throughput memory operations.

Performance Characteristics

With a blazing-fast 5600 MT/s data rate, the HMCG78AGBRA192N delivers exceptional bandwidth capabilities essential for data-intensive server applications. The PC5-44800 classification confirms the module's compliance with industry standards for DDR5 memory operating at this speed grade. The CAS Latency of CL46 represents the number of clock cycles between a read command and data availability, optimized for server workloads that prioritize stability and bandwidth over ultra-low latency. This timing configuration ensures reliable operation under sustained heavy loads typical in server environments, making it suitable for applications ranging from database management to virtualization and cloud computing infrastructure.

DDR5 Technology Advancements

Architectural Improvements Over DDR4

DDR5 technology represents a fundamental shift in memory architecture, with the Hynix HMCG78AGBRA192N incorporating several key advancements over previous DDR4 standards. The implementation of Decision Feedback Equalization (DFE) enables higher data rates while maintaining signal integrity, crucial for server environments where data accuracy is paramount. The burst length has been doubled to BL16, and bank groups have been increased to 8, providing more efficient command and data bus utilization. These architectural enhancements result in significantly improved bandwidth efficiency and reduced power consumption, making DDR5 the ideal choice for next-generation server platforms demanding higher performance within similar thermal envelopes.

Power Efficiency

The Hynix HMCG78AGBRA192N incorporates advanced power management features specific to DDR5 architecture. The module operates at a reduced voltage of 1.1V compared to DDR4's typical 1.2V, contributing to lower overall power consumption in server environments. More significantly, DDR5 introduces Power Management ICs (PMICs) directly on the memory module, enabling more precise voltage regulation and power delivery. This on-module power management allows for better power distribution across multiple DIMMs and more granular power control, resulting in improved power efficiency and stability—critical factors in large server deployments where power consumption and heat generation directly impact operational costs and reliability.

Reliability and Signal Integrity

This Hynix server memory module incorporates comprehensive signal integrity enhancements inherent to the DDR5 specification. The implementation of On-Die ECC provides additional error correction capabilities at the DRAM device level, complementing the traditional module-level ECC. This dual-layer error correction significantly improves data reliability and reduces soft error rates. The data buffer includes features for better command/address signal integrity, while improved training patterns and timing adjustments ensure stable operation in demanding server environments. These advancements make the HMCG78AGBRA192N particularly suitable for mission-critical applications where data integrity and system uptime are paramount considerations.

Server-Specific Features and Compatibility

Registered DIMM (RDIMM) Architecture

The Hynix HMCG78AGBRA192N utilizes Registered DIMM (RDIMM) architecture, specifically designed for server environments requiring high capacity and stability. Unlike unbuffered DIMMs used in consumer systems, RDIMMs incorporate registers on the module that buffer command and address signals between the memory controller and DRAM chips. This buffering reduces the electrical load on the memory controller, enabling support for higher module densities and more DIMMs per channel. The registered architecture significantly improves signal integrity in multi-DIMM configurations, making this module ideal for servers with substantial memory requirements, including database servers, application servers, and virtualized environments where memory capacity and reliability are critical.

Error Correction Code (ECC) Implementation

This memory module features robust Error Correction Code (ECC) capabilities, specifically designated as EC8 in the product nomenclature. ECC technology detects and corrects single-bit memory errors in real-time, while also detecting multi-bit errors. This capability is essential for server environments where data corruption can lead to significant operational issues, system crashes, or data integrity problems. The ECC implementation in the HMCG78AGBRA192N works in conjunction with the server's memory controller to continuously monitor and maintain data integrity, providing an additional layer of protection against soft errors caused by cosmic radiation, electrical interference, or other environmental factors that can affect memory reliability in 24/7 server operations.

Compatibility and System Requirements

The Hynix HMCG78AGBRA192N is designed for compatibility with server platforms supporting DDR5 Registered DIMMs. The 288-pin DIMM form factor follows the standard physical specifications for server memory modules. This module requires a server motherboard with a memory controller that supports DDR5 technology, RDIMM architecture, and the specific speed grade of 5600 MT/s. System compatibility should be verified with the server manufacturer's qualified vendor list to ensure proper operation and support. The module's operating voltage of 1.1V aligns with DDR5 standards, but system BIOS/UEFI must provide appropriate support for voltage regulation and timing parameters. This memory is not compatible with desktop systems or servers designed exclusively for DDR4 or earlier memory technologies.

Performance Applications and Use Cases

Enterprise Server Deployment

The Hynix HMCG78AGBRA192N 16GB DDR5 RDIMM is ideally suited for enterprise server environments where reliability, performance, and data integrity are paramount. In database servers, the module's high bandwidth and ECC capabilities ensure rapid data access while maintaining data accuracy for critical business information. For application servers, the 5600 MT/s data rate supports faster application response times and improved throughput. Virtualization hosts benefit from the module's capacity and stability when running multiple virtual machines, while the registered architecture ensures consistent performance in memory-intensive virtualized workloads. These characteristics make this memory module an excellent choice for businesses deploying servers for ERP systems, CRM platforms, and other mission-critical business applications.

Cloud Computing and Data Center Applications

In cloud computing infrastructure and modern data centers, the Hynix HMCG78AGBRA192N delivers the performance and reliability required for scalable computing resources. The DDR5 architecture provides the bandwidth necessary for high-density virtual machine hosting, container orchestration platforms, and software-defined infrastructure. The power efficiency of DDR5 technology contributes to reduced operational costs in large-scale deployments, while the advanced error correction capabilities ensure service availability and data integrity for multi-tenant environments. This memory module supports the demanding workloads of cloud-native applications, big data processing, and distributed computing frameworks where consistent memory performance directly impacts service level agreements and user experience.

High-Performance Computing and Analytics

For high-performance computing (HPC) applications and data analytics workloads, the Hynix HMCG78AGBRA192N provides the necessary memory bandwidth and capacity for computationally intensive tasks. Scientific computing, financial modeling, and engineering simulations benefit from the module's high data transfer rates and stable operation under sustained load. In-memory database systems and real-time analytics platforms leverage the DDR5 bandwidth to minimize data access latency and accelerate query processing. The registered DIMM architecture ensures signal integrity in systems configured with maximum memory capacity, while the ECC protection safeguards computational accuracy—critical factors in HPC environments where calculation integrity and system stability are non-negotiable requirements.

Form Factor

The Hynix HMCG78AGBRA192N follows the standard 288-pin DIMM form factor specified for DDR5 memory modules. The physical dimensions comply with industry standards, ensuring mechanical compatibility with server memory slots. The module features a carefully engineered PCB with multiple layers designed to maintain signal integrity at high data rates. The component placement and routing optimize electrical characteristics for reliable operation at 5600 MT/s. The memory incorporates temperature sensors that monitor thermal conditions, enabling the system to manage performance based on operating temperature—a crucial feature for server environments where cooling efficiency directly impacts reliability and lifespan. The construction quality reflects Hynix's manufacturing expertise, ensuring consistent performance and durability in 24/7 server operation.

Memory Chip Technology

This 16GB module utilizes advanced DDR5 SDRAM chips manufactured using Hynix's latest semiconductor processes. The 1Rx8 configuration indicates a single rank of memory chips with eight-bit organization. This configuration balances performance characteristics with manufacturing efficiency, providing optimal signal loading for the memory controller. The chips incorporate the latest DDR5 innovations including same-bank refresh features that improve efficiency by allowing other banks to remain active during refresh operations. The prefetch architecture has been enhanced to 16n, doubling the data transferred per internal clock cycle compared to DDR4. These technological advancements contribute to the module's overall performance profile while maintaining the reliability standards expected in server components.