HMAA4GS7AJR8N-XN
SK Hynix DDR4 32GB RDIMM 3200MT/s ECC registered memory module for server applications
Product Overview
Description
The HMAA4GS7AJR8N-XN is a high-capacity DDR4 RDIMM designed for enterprise server and data center applications. This 32GB module operates at 3200MT/s, providing high bandwidth for memory-intensive workloads. The registered design reduces electrical load on the memory controller, enabling high-density memory configurations.
Featuring ECC (Error Correcting Code) support, this module provides data integrity essential for mission-critical server applications. The 2Rx4 rank configuration optimizes performance for dual-processor server platforms. Built with SK Hynix's advanced DRAM technology, it delivers reliable operation under demanding conditions.
This RDIMM is compatible with major server platforms from Intel and AMD. It supports Intel Xeon Scalable processors and AMD EPYC processors, making it ideal for cloud computing, virtualization, and database applications.
Product Series
HMAA
Primary Application
Enterprise servers
Key Features
- 32GB high-capacity DDR4 memory
- 3200MT/s high-speed operation
- ECC support for data integrity
- Registered design for high-density configs
- Compatible with Intel Xeon and AMD EPYC
- 1.2V low power consumption
Specifications
| Memory Type | DDR4 RDIMM |
|---|---|
| Capacity | 32GB |
| Speed | 3200MT/s (PC4-25600) |
| Voltage | 1.2V |
| Organization | 2Rx4 |
| ECC | Yes |
| Package | 288-pin RDIMM |
| Operating Temperature | 0C to +85C |
Applications
Enterprise servers
Electronic system design
Data center computing
Electronic system design
Cloud infrastructure
Electronic system design
Virtualization platforms
Electronic system design
Database servers
Electronic system design
High-performance computing
Electronic system design
FAE Expert Insights
"The HMAA4GS7AJR8N-XN is an excellent choice for modern server deployments requiring high capacity and reliability. This 32GB RDIMM provides the perfect balance of performance and density. The 3200MT/s speed delivers excellent bandwidth for virtualization and database workloads. I particularly appreciate the ECC implementation which provides robust error correction for mission-critical applications. The module's compatibility with both Intel and AMD platforms gives customers flexibility in server design. For customers building high-capacity servers, these RDIMMs allow up to 2TB per processor on modern platforms. The reliability has been excellent in production deployments. I recommend this module for any enterprise server application requiring high-capacity DDR4 memory."
High-capacity 32GB RDIMM with excellent reliability for enterprise servers
— Michael Chen, BeiLuo
Frequently Asked Questions
What server platforms are compatible with this DDR4 RDIMM?
The HMAA4GS7AJR8N-XN DDR4 RDIMM is compatible with major server platforms: 1) Intel Xeon Scalable processors (1st through 4th generation) with DDR4 support, 2) AMD EPYC 7002 and 7003 series processors, 3) Compatible with server motherboards from Dell, HPE, Lenovo, Supermicro, and other major vendors, 4) Supports both single-processor and dual-processor configurations. The module follows JEDEC DDR4 standards ensuring broad compatibility.
Verify compatibility with your server platform using the manufacturer's memory compatibility list. Contact FAE for platform-specific guidance.
How does ECC work on this memory module?
The HMAA4GS7AJR8N-XN implements SECDED (Single Error Correction, Double Error Detection) ECC: 1) Error correction - automatically corrects single-bit errors in real-time without system interruption, 2) Error detection - detects and reports double-bit errors that cannot be corrected, 3) Implementation - uses 4 extra bits per 32-bit data word (72-bit total vs 64-bit for non-ECC), 4) Memory controller - server processors have integrated ECC memory controllers that manage error correction, 5) Error logging - corrected errors are logged by the system for monitoring. ECC is essential for server reliability, preventing data corruption from cosmic rays, electrical noise, or other sources.
ECC is essential for all server applications. This module provides robust error correction for mission-critical workloads.
What is the maximum memory capacity per server with this RDIMM?
The maximum memory capacity depends on your server platform: 1) Intel Xeon Scalable - up to 2TB per processor with 16 slots, 2) AMD EPYC - up to 2TB per processor with 8 channels, 3) 2-socket servers - up to 4TB total with full population, 4) Population rules - all channels should be populated evenly for optimal performance, 5) Rank limitations - check your platform's rank limitations per channel. This 32GB RDIMM uses 2Rx4 organization. Most servers support up to 2 ranks per channel. Contact FAE for platform-specific capacity planning.
Calculate based on available slots and platform limitations. Ensure even channel population for best performance.
How do I verify compatibility with my server?
To verify compatibility: 1) Check server manual - consult your server manufacturer's memory compatibility guide, 2) Use online tools - many vendors provide memory configurators (Dell, HPE, Lenovo), 3) Verify specifications - ensure speed (3200MT/s), type (DDR4 RDIMM), and rank (2Rx4) match, 4) Check BIOS version - update to latest BIOS for best compatibility, 5) Test before deployment - validate in your specific server model. SK Hynix RDIMMs follow JEDEC standards ensuring broad compatibility. Contact FAE if you encounter compatibility issues.
Use vendor configurators and verify specifications. Test in target server before large deployment.
What is the difference between 2Rx4 and 2Rx8 RDIMMs?
2Rx4 and 2Rx8 refer to rank and bit organization: 1) Rank - both are dual-rank (2R), appearing as two memory banks to the system, 2) Bit width - x4 means 4-bit wide data path per chip, x8 means 8-bit wide, 3) Chip count - x4 uses more chips than x8 for same capacity, 4) Performance - x4 can offer better performance through higher parallelism, 5) Reliability - x4 allows finer granularity for error correction, 6) Compatibility - some servers prefer x4 for higher capacity. This module uses 2Rx4 for optimal server performance. Check your server documentation for rank requirements.
2Rx4 is preferred for servers. Verify your platform supports the rank configuration before ordering.