General

Engineer's Note

Specifically designed for legacy server platforms running virtualization or in-memory databases, this 8GB DDR3-1866 Registered ECC RDIMM ensures critical data integrity through hardware error correction. The Registered signal type stabilizes multi-DIMM configurations across high-density systems, and its dual-rank x4 architecture with CL13 latency optimizes command scheduling and access efficiency under sustained workloads.

Technical Specs & Insights

1. ECC error correction actively detects and corrects single-bit memory errors, safeguarding transactional database integrity in always-on enterprise servers where silent data corruption is unacceptable.
2. Registered signal buffering decouples the memory controller from raw DRAM loads, enabling high-capacity configurations essential for large-scale virtualization without signal instability.
3. Dual Rank x4 organization interleaves accesses across internal banks, saturating the memory channel to deliver consistent bandwidth for multiple concurrent virtual machines under heavy consolidation.
4. PC3-14900 speed grade sustains high throughput per channel, reducing latency in in-memory analytics and accelerating real-time decision-making on data-intensive platforms.
5. The 8 GB per module density allows cost-effective scalability to triple-digit total capacities, equipping hypervisor clusters with the large memory footprint demanded by dense container and VM workloads.

Why These Specs Matter

The Micron MT36JSF1G72PZ-1G9K1KG is an 8GB DDR3-1866 registered server memory module, and its four cornerstone characteristics directly solve the most critical pain points in data center environments. The ECC error correction safeguards against silent data corruption caused by single-bit flips, which is vital when you are running a dense virtualization cluster. A flipped bit in a guest operating system kernel can crash dozens of virtual machines or corrupt transactional records; ECC detects and corrects these errors on-the-fly, preserving service continuity and data accuracy without human intervention. The registered signal buffer addresses the challenge of scaling memory capacity: it stabilizes the electrical load on the memory controller, enabling you to fully populate all channels with high-density DIMMs for massive in-memory databases like SAP HANA without random boot failures or stability drops. The 1866MHz interface, delivering up to 14.9GB/s of peak bandwidth per channel, directly reduces query latency in memory key-value stores such as Redis, accelerating real-time analytics and user-facing response times. Finally, the dual-rank x4 organization implements rank interleaving, which boosts command throughput under the highly concurrent, random-access workloads typical of multi-tenant virtualized servers, while the x4 DRAM chip architecture enhances RAS by limiting the impact of a single chip failure. For your virtualized enterprise applications or high-performance databases, this translates into uncompromised data integrity, predictable performance under full load, and the headroom to scale memory capacity confidently.

Endurance & Reliability

General Virtualization
For modest virtualization hosts, deploy six or eight of these 8 GB registered DIMMs to reach 48 GB–64 GB per socket. Populate dual‑channel or triple‑channel groups evenly to maximize memory bandwidth for multiple VMs, and leave at least two slots free for future scaling. Favouring identical dual‑rank DIMMs ensures consistent latency under mixed VM workloads.

In-Memory Database
In‑memory datasets demand both capacity and reliability. Install twelve to sixteen modules per dual‑socket server, yielding 96 GB–128 GB, so large tables fit entirely in RAM. Spread pairs across all memory channels and use sparingly placed RDIMMs to maintain registered buffering signal integrity. Full population with dual‑rank x4 RDIMMs also exploits chip‑kill ECC for critical data protection.

High-Performance Computing
HPC clusters benefit from balanced bandwidth, not just volume. Match six or eight identical 8 GB sticks per node for 48 GB–64 GB, aligning population exactly with the CPU’s native channel count (often three or four channels for DDR3 platforms). This symmetric layout delivers peak GB/s memory streams to simulation codes, while the 1866 MT/s speed and dual‑rank configuration sustain high throughput in data-parallel loops.

Verified Compatibility

Strictly tested for servers: compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, Lenovo System x3650 M4.

FAQ