General

Engineer's Note

This RDIMM with ECC and registered signaling is engineered for enterprise servers and memory-intensive workloads such as virtualization and in-memory databases, where dual-rank x4 organization boosts bandwidth efficiency and CL19 timing balances latency with high data integrity. Its 32 GB capacity and 1.2 V DDR4-2666 specification ensure reliable, power-efficient operation in platforms demanding uncompromising uptime and error correction.

Technical Specs & Insights

1. 32GB capacity provides the memory headroom to pack more virtual machines per physical host, directly boosting consolidation density in private cloud deployments.
2. ECC protection silently corrects single-bit errors, safeguarding transactional databases and in-memory analytics against silent data corruption.
3. Registered signal type reduces the electrical load on the server’s memory controller, enabling stable operation with densely populated DIMM slots in scale-up architectures.
4. Dual Rank x4 organization taps internal bank interleaving to sustain high bandwidth under concurrent multi-tenant workloads, preventing bottlenecks during peak query times.
5. 2666 MT/s throughput supplies consistent per-core bandwidth for mainstream enterprise applications while maintaining a power-efficient thermal envelope for rack-dense data centers.

Why These Specs Matter

The Micron MTA36ASF4G72PZ-2G6B2 is an RDIMM engineered for server environments, where unplanned downtime and data errors carry real financial consequences. Its four defining characteristics directly address the pain points of IT infrastructure.

First, ECC memory actively detects and corrects single-bit errors, preventing silent data corruption in long-running virtualized clusters. When a hypervisor hosts dozens of VMs, a flipped bit in memory can crash a critical application or corrupt a transaction log—ECC transforms that risk into a self-healing event you never notice. Second, the registered signal type buffers the command and address lines, stabilizing electrical loads as you scale. This means you can populate all memory channels with 32GB modules without sacrificing signal integrity, essential for dense virtualization hosts or in-memory databases like SAP HANA that demand terabytes of reliable capacity. Third, the dual-rank ×4 organization interleaves memory accesses across two internal ranks per DIMM, boosting effective bandwidth. Under the heavy concurrent reads of a Redis cluster handling millions of operations per second, that interleaving yields measurably higher throughput and lower tail latency. Finally, the DDR4-2666 speed at 1.2V keeps power and cooling costs in check across a rack full of servers, delivering performance without thermal throttling. These features translate directly to reduced downtime, predictable performance, and lower TCO in enterprise data centers.

Endurance & Reliability

This is a 32 GB DDR4-2666 Registered ECC DIMM built for server platforms. The following guidelines help plan module quantities and population for typical data‑center workloads.

General Virtualization
Start with four modules (128 GB) per host to run a moderate number of virtual machines comfortably. Balance the DIMMs evenly across all memory channels—for example, one DIMM per channel on an eight‑channel system—to avoid bottlenecks and maximize throughput. For heavier consolidation, scale to eight modules (256 GB) while maintaining symmetric channel population.

In‑Memory Database
Populate every available DIMM slot with these 32 GB RDIMMs to create the largest possible memory footprint, such as 384 GB with 12 modules or 768 GB with 24 in a dual‑socket server. ECC and register‑buffer reliability protect data integrity, while full‑slot population enables rank‑ and channel‑interleaving for consistently low latency under large working sets.

High‑Performance Computing (HPC)
Install one DIMM per memory channel on each socket—commonly 8 or 12 modules per CPU—to exploit the full aggregate bandwidth of the platform. Dual‑rank x4 organization offers optimal bank‑group interleaving, which reduces access conflicts in bandwidth‑sensitive simulations and modeling. Always match identical DIMM configurations across sockets for uniform performance in multi‑socket nodes.

Verified Compatibility

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

FAQ