General

Engineer's Note

This 16GB DDR3-1866 RDIMM with ECC and registered signaling is engineered for server platforms running memory-intensive workloads like virtualization and in-memory databases, where dual-rank x4 organization boosts bandwidth utilization and data integrity is non-negotiable. Its CL13 low latency and 1.5V operation further ensure stable, power-efficient performance in dense, mission-critical enterprise environments.

Technical Specs & Insights

1. Registered signal type ensures robust signal integrity across heavily populated server boards, enabling reliable operation when all memory slots are fully utilized for maximum capacity.
2. ECC error correction actively detects and corrects single-bit data errors in real time, safeguarding transactional databases and in-memory caches against silent data corruption.
3. Sixteen-gigabyte capacity per module strikes an optimal density for virtualization hosts, allowing more active VMs per server without immediate need for costly additional DIMMs.
4. Dual Rank x4 organization interleaves memory accesses across multiple banks, sustaining high bandwidth even under the random read/write patterns typical of multi-tenant cloud workloads.
5. 1866MHz clock speed raises the peak throughput ceiling for DDR3 platforms, shrinking batch processing windows for overnight analytics and reducing latency in memory-hungry application tiers.

Why These Specs Matter

When you’re running a virtualized cluster or an in-memory database like SAP HANA, memory errors aren’t just an inconvenience—they cascade into corrupted transactions, silent data loss, and costly downtime. This Micron 16GB DDR3-1866 RDIMM (MT36JSF2G72PZ-1G9E1HI) is purpose‑built to eliminate those risks.

First, its ECC technology continuously detects and corrects single‑bit errors, including bit flips induced by cosmic radiation. In a 24/7 database server, that means query results you can trust, every time. Second, the registered architecture buffers address and command signals, stabilizing the memory bus when you populate all 24 DIMM slots in an ESXi host. This keeps consolidation ratios high without random boot failures under load. Third, the dual‑rank x4 design interleaves memory banks, extracting more bandwidth per channel. For your virtualized ERP cluster, that translates to lower latency during peak invoicing runs. Finally, 1866MHz speed at CL13 balances throughput and responsiveness, ensuring hypervisor overhead never starves guest VMs. Deploy fleets confidently, knowing this module handles dense virtualization and real‑time analytics where second‑best memory simply doesn’t survive.

Endurance & Reliability

This is a 16GB DDR3-1866 Registered ECC RDIMM, exclusively for server platforms. It enables large, reliable memory configurations. The following planning advice covers three common workloads.

General Virtualization
Populate one 16GB RDIMM per memory channel to sustain the full 1866 MT/s speed. On a dual‑socket server with four channels per CPU, you obtain a balanced 128 GB, ideal for dozens of general‑purpose VMs. When consolidation density demands more capacity, install a second DIMM per channel to reach 256 GB; the speed will downshift to 1333 or 1600 MT/s depending on the processor.

In‑Memory Database
For memory‑hungry databases, maximize capacity by installing two 16GB RDIMMs per channel on a quad‑channel dual‑socket system to deliver 256 GB. This accepts a lower clock speed, which is usually acceptable. If latency is critical, stay at one DIMM per channel (128 GB) and use NVMe storage for cold data overflow.

High‑Performance Computing
HPC nodes demand peak bandwidth. Install exactly one 16GB module per memory channel across all sockets, yielding 128 GB at 1866 MT/s on a dual‑socket quad‑channel server. Uniform, identical modules prevent channel imbalances that would degrade tightly coupled MPI workloads.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R720/R730, HP ProLiant DL380p Gen8, and more.

FAQ