General

Engineer's Note

This registered ECC DDR4-2666 RDIMM is engineered for server-class platforms demanding high data integrity, making it ideal for virtualization, in-memory databases, and mission-critical workloads. Its dual-rank x4 configuration with CL19 latency leverages registered signal buffering to enable stable operation across large memory populations, ensuring robust error correction and consistent performance under heavy load.

Technical Specs & Insights

1. Memory Capacity
Ample capacity fuels dense virtualization and in-memory database workloads, allowing more guest instances per server and reducing hardware sprawl in the data center.

2. Error Identifying
ECC protection catches and corrects single-bit errors immediately, safeguarding transactional integrity and minimizing expensive unplanned downtime for mission-critical services.

3. Signal Type
Registered clock and command signals maintain clean signal integrity across high-density memory channels, ensuring stable operation when channels are fully populated with multiple DIMMs.

4. Rank
Dual Rank x4 organization interleaves accesses across internal bank groups, keeping memory channels fully saturated and preserving low-latency throughput under heavy multi-tenant consolidation.

5. RAM Speed
High memory bandwidth matches modern multi-core server processors, accelerating real-time analytics, virtualization overhead, and concurrent database queries without bottlenecking the CPU.

Why These Specs Matter

The Micron MTA36ASF4G72PZ-2G6D1QG is a 32GB DDR4-2666 RDIMM purpose-built for servers, where data integrity and scalability directly determine business outcomes. ECC actively detects and corrects single-bit errors caused by background radiation—without it, a flipped bit could silently corrupt a financial record or crash an entire virtualized host, jeopardizing dozens of VMs. The registered buffer stabilizes signal integrity when populating all memory channels, allowing you to scale to terabyte-class capacity without frequency degradation, which is essential for memory-intensive workloads like SAP HANA or large VMware clusters. Dual-rank construction interleaves accesses across two internal ranks, delivering roughly ten percent more bandwidth than single-rank modules at the same speed; this translates directly into higher VM density and faster in-memory database queries. Operating at a standard 1.2V and 2666MHz, the module balances solid throughput with power efficiency, keeping cooling costs predictable in always-on data centers. From virtualized environments to real-time analytics, every design choice ensures your services remain accurate, responsive, and continuously available.

Endurance & Reliability

General Virtualization
For dense virtualization hosts, these 32GB DDR4-2666 RDIMMs are ideal. Populate six or eight identical modules across balanced memory channels to maximize capacity while maintaining uniform latency. A six-module configuration provides 192GB, comfortably supporting dozens of lightweight VMs, and leaves room for growth by populating the remaining slots later.

In-Memory Database
In-memory databases demand both capacity and data integrity, which ECC registered memory inherently provides. Deploy eight of these 32GB modules for 256GB total, keeping the dataset fully resident. Configure memory interleaving in the BIOS to boost bandwidth, and ensure all channels are populated with identical dual-rank DIMMs to sustain low query latencies under heavy concurrent loads.

High-Performance Computing
HPC clusters benefit from balanced memory bandwidth per core. Install these 32GB RDIMMs in a fully populated configuration—typically 12 or 16 modules per 2-socket node—to enable optimal channel interleaving. The combination of dual-rank x4 organization and 2666MT/s speed delivers strong throughput for MPI workloads and simulation codes, while registered signaling maintains signal integrity across large memory populations.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R740, R750, HPE ProLiant DL380 Gen10, and Lenovo ThinkSystem SR650.

FAQ