General

Engineer's Note

This 64GB DDR4-3200 Registered ECC RDIMM employs a quad-rank x4 organization to maximize memory density per channel, making it an ideal fit for heavily virtualized servers and in-memory databases where both capacity and data integrity are paramount. The registered signal path stabilizes multi-DIMM configurations, and the integrated ECC with a CAS latency of 22 reliably corrects single-bit errors while maintaining consistent 3200 MT/s throughput under sustained enterprise workloads.

Technical Specs & Insights

1. A dense 64GB capacity per module allows IT architects to pack more active virtual machines into each server node, driving higher consolidation ratios without sacrificing application headroom.

2. The 3200 MT/s transfer rate elevates peak memory bandwidth, enabling data-intensive workloads like real-time analytics and in-memory databases to process larger datasets with reduced latency.

3. Integrated ECC secures the entire data path against single-bit errors, a non-negotiable safeguard that prevents silent data corruption during financial transactions or critical database commits.

4. Registered logic buffers the command and address lanes, stabilizing signal integrity across fully loaded server boards and allowing the platform to scale to massive memory footprints without compromise.

5. Quad Rank x4 construction packs more DRAM banks per channel, sustaining heavy queue depths under multi-tenant virtualization so that dozens of VMs experience consistently low memory access delays.

Why These Specs Matter

The Micron MTA72ASS8G72LZ-3G2R2R is a server-class registered DIMM engineered for enterprise workloads where failure is not an option. Its ECC technology continuously corrects single-bit memory errors, protecting your virtualized infrastructure from silent data corruption that can crash hypervisors and corrupt VM states. Registered buffering stabilizes command and address signals, enabling you to populate all memory channels with 64GB modules without sacrificing speed—critical for scaling virtual machine density in clusters. The quad-rank x4 design packs massive 64GB capacity onto a single stick, maximizing precious server DIMM slots for in-memory databases like SAP HANA, where entire datasets must reside in RAM for real-time analytics. Finally, the 3200MHz clock speed delivers the high throughput required to feed multi-core CPUs, preventing memory bottlenecks during simultaneous VM migrations or database queries. For your data center, this means fewer outages, denser consolidation, and uncompromised performance in memory-bound applications.

Endurance & Reliability

This ECC registered RDIMM is server memory. Below are capacity planning recommendations for typical enterprise workloads.

General Virtualization
Balance capacity and bandwidth by populating all memory channels identically. For a dual-socket server, 16 of these 64 GB modules deliver 1 TB, comfortably running over 100 VMs. Start with at least 8 modules (512 GB) and scale; always maintain symmetry across CPU sockets to optimize NUMA performance.

In-Memory Database
Latency-sensitive in-memory databases demand uniform, large capacity. A minimal configuration uses 4 modules (256 GB) for small instances, but production systems running Redis or SAP HANA should deploy 12 modules (768 GB) across both sockets. This keeps entire datasets resident in DRAM, avoiding disk swapping that would compromise microsecond response times.

High-Performance Computing
Maximize bandwidth by installing one module per channel (1DPC) at 3200 MT/s. These quad-rank DIMMs may drop to 2933 MT/s when populating two per channel. For simulation-heavy workloads, a 16-module 1 TB setup supplies ample capacity; however, memory-bound CFD or weather models benefit most from strict 1DPC configurations.

Verified Compatibility

Rigorously tested server RDIMM, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.

FAQ