General

Engineer's Note

This DDR4-2666 Registered ECC module with dual-rank x4 organization is engineered for server platforms, delivering the data integrity and signal stability required by memory-intensive workloads such as virtualization and in-memory databases. Its 1.2V operating voltage and CL19 latency, combined with registered logic, ensure reliable performance in dense, multi-DIMM configurations where consistent error correction and reduced electrical loading are critical.

Technical Specs & Insights

1. Registered signal type ensures stable command and address signaling across populated server channels, enabling seamless scaling for memory-intensive virtualization without compromising reliability.
2. ECC error correction actively detects and repairs bit-flip errors, preserving data integrity in always-on financial transactions and critical database operations.
3. Dual Rank x4 organization uses bank interleaving to maintain peak bandwidth utilization, reducing latency spikes when multiple VMs contend for memory access.
4. A 16-gigabyte capacity per stick serves as a dense building block for hyper-converged infrastructure, allowing higher guest density per rack unit while balancing power and cooling.
5. DDR4-2666 speed provides consistent throughput that keeps pace with modern multi-core server CPUs, preventing memory bottlenecks during simultaneous big-data analytics jobs.

Why These Specs Matter

The Micron MTA36ASF2G72PZ-2G6F1SI is a server-grade RDIMM engineered for mission-critical workloads, and its four defining characteristics translate directly into infrastructure resilience. True ECC error correction means silent data corruption from single-bit cosmic radiation events never compromises your financial transaction ledgers or in-memory database caches—every calculation stays provably accurate. Registered buffering with a dedicated command/address register stabilizes high-density server boards, allowing you to populate all 24 DIMM slots without signal degradation. That matters when your virtualized cluster running dozens of VMs cannot tolerate sporadic memory training failures during online capacity expansion. The dual-rank x4 architecture harnesses interleaved access to deliver consistent 2666MT/s bandwidth under parallel query storms; a Redis or memcached node serving millions of operations per second feels no latency cliffs even at near-peak utilization. Operating at 1.2V, it also trims thermal load in dense 1U nodes, helping sustain baseline frequency during sustained analytics runs. This module is not just compliant silicon—it directly preserves uptime, throughput, and result fidelity in hyperconverged and OLAP environments where a single uncorrected error translates into revenue loss.

Endurance & Reliability

General Virtualization
For a balanced virtualization host, populate six or eight identical 16GB RDIMMs across all memory channels to maximize bandwidth while leaving room for growth. A six-module configuration delivers 96GB, comfortably supporting 20–30 light-to-medium VMs. Always install modules in matched sets per CPU memory controller to maintain NUMA balance and optimal ECC performance.

In-Memory Database
In-memory databases like Redis or SAP HANA demand large, contiguous capacity and high reliability. Equip your server with at least 16 of these 16GB dual-rank RDIMMs (256GB) per socket, fully populating one DIMM per channel for maximum throughput. Scale to 384–512GB per socket if dataset growth is expected, and always leverage the ECC and registered features to prevent silent data corruption under sustained load.

HPC
High-performance computing clusters benefit from the combination of low-latency CL19 and registered ECC stability. Deploy one 16GB RDIMM per channel (typically 8 modules per node) to deliver 128GB of memory while sustaining 2666MT/s across all ranks. For bandwidth-sensitive simulations, avoid mixing ranks within a channel: keep configurations homogeneous to eliminate timing conflicts and ensure reproducible computational results.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ