General

Engineer's Note

Ideal for legacy enterprise servers running memory-intensive workloads such as virtualization and in-memory databases, this 8 GB DDR3-1866 registered ECC module leverages a dual-rank x4 architecture to improve command interleaving and sustained data throughput. Its registered signal type and CL13 CAS latency deliver robust electrical stability in fully populated 240-pin RDIMM configurations, ensuring data integrity in mission-critical environments.

Technical Specs & Insights

1. ECC error detection and correction eliminates silent data corruption, preserving transactional consistency in financial and database servers.
2. The registered interface buffers command and address lines, allowing fully populated 24-DIMM platforms to run stably under constant heavy load.
3. Dual Rank x4 architecture interleaves memory pages aggressively, keeping channel bandwidth saturated for predictable VM response even during peak consolidation.
4. 8 GB per module strikes a density sweet spot, enabling cost-effective scaling to 192 GB per dual-socket server for mid-tier virtualization farms.
5. 1866 MHz clock rate drives 14.9 GB/s throughput, speeding up in-memory analytics and delivering smoother performance in latency-sensitive caching applications.

Why These Specs Matter

When you are running a virtualized cluster hosting multiple mission-critical VMs, an undetected single-bit error in memory can silently corrupt data or bring down an entire host. The Micron MT36JSF1G72PZ-1G9 is an 8GB DDR3-1866 RDIMM engineered precisely to eliminate that risk. Its ECC technology corrects single-bit errors and detects multi-bit failures in real time, delivering the data integrity that databases and financial transactions demand. For platforms packing numerous DIMMs, the registered design buffers command and address signals, stabilizing high-density configurations so your hypervisor scales reliably without signal degradation or boot failures. The 1866MHz clock speed and dual-rank x4 organization further boost throughput by enabling interleaved memory accesses, which reduces latency under the heavy concurrent loads typical of in-memory databases like Redis or Memcached. In practice, this means your virtual machines experience fewer hangs, your SQL queries complete faster, and you avoid the costly downtime associated with silent data corruption. When uptime and accuracy are non-negotiable, this RDIMM turns raw reliability specifications into concrete operational confidence for your data center.

Endurance & Reliability

General Virtualization
For a typical virtualization host using DDR3 Registered DIMMs, populate at least six to eight 8 GB modules across all memory channels to achieve 48–64 GB total capacity. This ensures sufficient headroom for multiple virtual machines without excessive swapping, and using identical dual‑rank x4 RDIMMs preserves balanced memory bandwidth under mixed workloads.

In‑Memory Database
In‑memory databases demand both capacity and reliability, making these ECC Registered DIMMs a solid building block. Configure the server with the maximum supported number of identical 8 GB sticks—often 12 or 16 modules—to reach 96–128 GB, placing the entire dataset in RAM while using dual‑rank DIMMs to maintain low latency and high throughput on multi‑channel platforms.

High‑Performance Computing (HPC)
HPC clusters benefit from fully populating all memory channels per node to maximize bandwidth. Install one 8 GB RDIMM per channel (e.g., eight modules for a dual‑socket system with four channels per CPU) to achieve a balanced 64 GB footprint. This uniform configuration avoids channel imbalance and delivers the consistent, low‑latency performance that tightly coupled parallel applications require.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R720/R620, HP ProLiant DL380p Gen8, and IBM System x3650 M4.

FAQ