General

Engineer's Note

This 64GB DDR4-3200 Registered ECC RDIMM is engineered for enterprise server platforms, delivering the data integrity and reliability essential for memory-intensive virtualization and in-memory database workloads. Its dual-rank x4 organization and registered signal architecture enhance signal stability and memory channel efficiency, enabling higher capacity scaling with a CAS latency of just 22 clocks at 1.2V.

Technical Specs & Insights

1. ECC actively detects and corrects single-bit errors, preserving data integrity in always-on server environments where silent corruption is unacceptable.
2. Registered signaling buffers clock and command signals, enabling stable operation across densely populated memory channels in scalable rack servers.
3. Generous per-module capacity allows heavier virtual machine consolidation and larger in-memory database caches without expanding physical footprint.
4. High-speed interface delivers the bandwidth needed to keep pace with multi-core CPUs, accelerating concurrent query execution and transactional workloads.
5. Dual Rank x4 architecture interleaves bank accesses to keep the memory bus fully saturated, ensuring steady performance even under extreme virtualization loads.

Why These Specs Matter

Designed specifically for enterprise servers, the Hynix HMAA8GR7AJR4N-XNT4AA is a 64GB DDR4-3200 RDIMM that directly addresses the critical pain points of modern data center operations. When running dense virtualization clusters, its Registered signal buffer becomes indispensable; it stabilizes the electrical load across the memory bus, allowing you to confidently populate all channels with high-capacity modules without risking command address errors that would crash multiple guest systems simultaneously. The ECC engine runs silently in the background, correcting single-bit upsets caused by cosmic radiation before they can silently corrupt financial transactions or patient records in an in-memory database. Meanwhile, the Dual Rank x4 organization maximizes interleaving, delivering measurably lower latency and higher bandwidth for your Redis or SAP HANA instances under heavy concurrent access. Every millisecond saved per query translates directly into faster insights. At an efficient 1.2V, it also curbs power consumption across a full rack, reducing both cooling demands and operational expenses while preserving absolute data integrity and runtime stability.

Endurance & Reliability

General Virtualization
For general virtualization hosts running multiple VMs, populate at least four to eight 64 GB RDIMMs across balanced memory channels to achieve 256–512 GB total capacity. Configure identical dual‑rank modules per channel to maximize bandwidth and keep DIMMs per channel at two or fewer, preserving 3200 MT/s speed for predictable VM density without throttling.

In-Memory Database
In-memory database workloads demand large, low-latency footprints, so equip every available memory slot with these 64 GB RDIMMs to reach 1 TB or more per socket. A symmetric population of one DIMM per channel yields the highest frequency while safeguarding ECC integrity, and pairing dual‑rank x4 modules guarantees sustained throughput under heavy Redis, SAP HANA, or Memcached instances.

High Performance Computing
HPC clusters benefit from per‑socket configurations of eight or sixteen modules in balanced sets, delivering capacities from 512 GB to 1 TB with a unified 3200 MHz clock. Registered ECC ensures resilience during multi‑day simulation runs, and using identical dual‑rank RDIMMs across all channels minimizes memory‑side latency, enabling consistent strong scaling on MPI or OpenMP workloads.

Verified Compatibility

Rigorously validated for servers like Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.

FAQ