SK hynix HMCG88AHBRA478N 32GB DDR5-6400 ECC RDIMM Server Memory

SK hynix HMCG88AHBRA478N 32GB DDR5-6400 ECC RDIMM Server Memory

The SK hynix HMCG88AHBRA478N is a high-performance 32GB DDR5-6400 ECC Registered DIMM (RDIMM) designed for modern enterprise servers, data centers, professional computing environments, and other applications requiring high memory capacity, bandwidth, and reliability.

Operating at 6400 MT/s, this DDR5 server memory module provides high-speed data transfer performance suitable for demanding workloads. Its PC5-51200 rating corresponds to the high bandwidth capability of DDR5-6400 memory, making it well suited for modern server platforms designed around high-performance DDR5 memory technology.

The module provides 32GB of memory capacity, allowing compatible servers to expand their available system memory and handle larger workloads. Increasing server memory capacity can be particularly beneficial for applications involving multiple virtual machines, large databases, enterprise software, cloud workloads, data analytics, and other memory-intensive operations.

The HMCG88AHBRA478N uses ECC (Error-Correcting Code) memory technology. ECC is designed to detect and correct certain types of memory errors, helping improve data integrity and system stability. This makes ECC memory particularly appropriate for business-critical server environments where reliability and continuous operation are important.

This module is a Registered DIMM (RDIMM) rather than an unbuffered desktop UDIMM. Registered memory is designed for server platforms and uses register/buffer circuitry to help manage the electrical load between the memory modules and the memory controller. This architecture enables compatible enterprise platforms to support larger and more reliable memory configurations.

The HMCG88AHBRA478N uses a 2Rx8 dual-rank organization, meaning the module contains two ranks of memory organized using x8 devices. This configuration is commonly used in enterprise server memory and is supported by a wide range of modern server platforms when the system’s memory architecture allows it.

The module uses the standard 288-pin DIMM form factor and operates at 1.1V, consistent with DDR5 server memory requirements. It is intended for systems that specifically support DDR5 ECC Registered DIMMs.

The HMCG88AHBRA478N has also appeared in actual enterprise server configurations. SPEC benchmark records identify this exact SK hynix part number as a 32GB, 2-rank, 6400 memory module in Lenovo ThinkSystem server configurations. In some systems, the memory is configured at a lower operating speed depending on the server and processor platform.

This demonstrates an important point for customers: the module’s rated speed is DDR5-6400, but the actual operating speed may be limited by the server, processor, BIOS, memory population, or platform configuration.

The SK hynix HMCG88AHBRA478N is therefore an excellent option for businesses looking to upgrade or expand memory in compatible enterprise server systems.

It can be used for a variety of professional workloads, including:

Enterprise server infrastructure
Data-center applications
Server virtualization
Cloud computing
Database servers
Web servers
Application servers
Data analytics
High-performance computing
Enterprise software
Virtual machine environments
Large-scale memory workloads
Business-critical computing

The module is not intended for ordinary desktop or laptop computers. It is a server-class ECC Registered RDIMM and requires a compatible server platform that supports DDR5 RDIMM memory.

Before purchasing or installing the HMCG88AHBRA478N, customers should verify the compatibility of their specific server model, including supported memory type, maximum memory capacity, supported memory speed, DIMM population rules, memory channels, and processor requirements.

Detailed Technical Specifications
Specification Details
Manufacturer SK hynix
Manufacturer Part Number HMCG88AHBRA478N
Memory Capacity 32GB
Memory Generation DDR5
Memory Type ECC Registered DIMM
Module Type RDIMM
Rated Speed 6400 MT/s
Memory Standard DDR5-6400
Bandwidth Rating PC5-51200
Rank 2Rx8
ECC Yes
Registered/Buffered Registered
Voltage 1.1V
Pin Count 288-pin
Form Factor DIMM
Application Server / Data Center
Use Enterprise Computing
Condition Refurbished
Warranty 1 Year
Availability In Stock
Key Features
1. 32GB Capacity

Provides 32GB of DDR5 memory capacity in a single module, making it suitable for increasing RAM capacity in compatible enterprise servers.

2. DDR5-6400 Performance

The module is rated for 6400 MT/s, providing high memory bandwidth for modern server processors and demanding applications.

3. ECC Memory

ECC technology helps detect and correct certain memory errors, supporting improved reliability and data integrity in server environments.

4. Registered DIMM

The RDIMM architecture is designed specifically for enterprise server platforms and supports server configurations that require registered memory.

5. 2Rx8 Architecture

The 2Rx8 dual-rank configuration is commonly used in enterprise DDR5 server memory and is supported by numerous modern server platforms.

6. PC5-51200

The module carries a PC5-51200 bandwidth classification associated with DDR5-6400 memory.

7. 1.1V Operation

The module operates at 1.1V, consistent with standard DDR5 memory operating voltage.

8. Enterprise Server Design

Designed for compatible server and data-center platforms rather than standard consumer desktop or laptop systems.

Recommended Applications

The HMCG88AHBRA478N can be used in compatible systems for:

Virtualization
Run multiple virtual machines while providing sufficient memory resources to each workload.

Cloud Computing
Suitable for cloud infrastructure and high-density computing environments.

Database Servers
Additional memory capacity can improve the ability to handle large databases and concurrent workloads.

Enterprise Applications
Suitable for ERP, CRM, application servers, and other business-critical software.

Data Analytics
High memory bandwidth and capacity support data-intensive analytics workloads.

Web Hosting
Suitable for enterprise web servers and high-traffic hosting environments.

Data Centers
Designed for professional server infrastructure requiring ECC registered memory.

High-Performance Computing
Can be used in compatible computing systems requiring high-speed DDR5 RDIMM memory.