General

Engineer's Note

This 64GB DDR4-3200 Registered ECC RDIMM, featuring a dual-rank x4 configuration and CL22 latency, is purpose-built for enterprise servers and virtualization platforms where data integrity and signal stability are non-negotiable. It excels in memory-intensive workloads like in-memory databases and large-scale virtualization by combining low 1.2V power draw with robust error correction and high-capacity registered buffering for dense multi-DIMM deployments.

Technical Specs & Insights

1. Generous memory capacity per module allows dense server configurations to host more virtual machines and large in-memory databases without sacrificing performance.
2. Integrated ECC continually detects and corrects single-bit memory errors, preventing silent data corruption in mission-critical enterprise workloads.
3. Registered signal technology buffers command and address signals, enabling the stable population of numerous DIMMs per channel for massive total system memory.
4. High data rate feeds modern multi-core server CPUs with sufficient bandwidth to accelerate real-time analytics and concurrent user requests.
5. Dual Rank organization interleaves memory banks across ranks, maximizing channel utilization and sustaining throughput under heavy transactional processing.

Why These Specs Matter

In the world of enterprise servers, where every transaction and computation must be flawless, the SK hynix 64GB DDR4-3200 RDIMM (HMAA8GR7AJR4N-XNT4AD) directly addresses the most pressing data center pain points. When you run a dense virtualization cluster, a single undetected bit flip in a hypervisor stack can crash dozens of virtual machines. This module’s integrated ECC technology continuously scans and corrects single-bit errors, silently neutralizing data corruption before it cascades into costly downtime or corrupted financial records. For deployments demanding high capacity, such as in-memory databases like SAP HANA, the registered architecture buffers command and address signals, stabilizing the entire memory bus even when all channels are fully populated. This allows you to confidently scale up to terabytes of RAM across a node without signal integrity failures. The dual-rank x4 organization then steps in through internal rank interleaving, overlapping consecutive accesses to elevate bandwidth and reduce the effective latency your real-time analytics experience. Operating at a cool 1.2V with a fast 3200MHz frequency, it balances aggressive throughput with energy efficiency, ultimately lowering your total cost of ownership in round-the-clock operations.

Endurance & Reliability

General Virtualization
For dense virtualization hosts, populate all memory channels symmetrically to maximize bandwidth and capacity. Using multiple 64GB RDIMMs—such as eight modules in a 1DPC (DIMM per channel) configuration—delivers a balanced 512GB footprint ideal for hosting dozens of mixed-workload VMs. Avoid mixing DIMM ranks or capacities per channel to maintain consistent latency and NUMA locality.

In-Memory Database
Capacity and low latency are paramount for in-memory databases like SAP HANA or Redis clusters. Equip the server with 12 to 16 of these dual-rank 64GB RDIMMs across all memory channels, reaching 768GB to 1TB, to keep entire datasets resident in DRAM. The registered ECC design ensures data integrity under heavy write loads, while the 3200MT/s speed supports rapid table scans and index lookups.

High Performance Computing
HPC workloads thrive on both bandwidth and large per-node memory. Fill each memory channel with one 64GB RDIMM to fully exploit the processor’s memory bandwidth—typically eight or twelve modules for a dual-socket system, yielding 512GB or 768GB. This 1DPC configuration maintains maximum clock speed and supports memory-intensive simulations, computational fluid dynamics, and large-scale data analysis without throttling.

Verified Compatibility

Rigorously tested 64GB DDR4-3200 RDIMM, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2, and more.

FAQ