General

Engineer's Note

This 2GB DDR3-1333 Registered ECC memory module (RDIMM) is purpose-built for server platforms running enterprise workloads such as virtualization and in-memory databases, where continuous data integrity is essential. Its registered signal design and ECC error correction, combined with a dual-rank x8 configuration and CL9 latency, ensure signal stability across multiple DIMMs per channel while reliably detecting and correcting single-bit errors in high-density deployments.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit memory errors on the fly, safeguarding transactional integrity for always-on enterprise databases.
2. Registered architecture buffers address and control signals, enabling stable population of numerous DIMMs per channel in dense virtualization hosts.
3. Dual Rank x8 configuration leverages rank interleaving to accelerate concurrent data requests, improving response time under multi-tenant workloads.
4. Ten-point-six gigabyte per second peak bandwidth sustains consistent throughput for mid-tier caching and content delivery applications.
5. Two gigabyte capacity provides a cost-effective building block for bare-metal provisioning in lightweight container clusters, avoiding waste of dense memory.

Why These Specs Matter

When every transaction counts and system availability is paramount, the Micron MT18JSF25672PDZ-1G4G1FF memory module delivers enterprise-grade reliability. This 2GB DDR3-1333 Registered DIMM integrates ECC to defeat silent data corruption caused by bit-flips—a critical safeguard in virtualized clusters where a single uncorrected memory error can cascade across VMs, causing unexplained crashes or data loss. Its Registered buffer stabilizes command and address signals, enabling densely populated server boards to maintain signal integrity in large memory configurations, directly preserving uptime in multi-tenant environments. The dual-rank x8 organization interleaves memory access, boosting bandwidth for latency-sensitive workloads such as in-memory databases. Here, ECC ensures integrity of every stored record, while the registered design and dual-rank performance allow your database to handle more concurrent queries reliably. For IT managers, this means your virtualization hosts and database servers run free from silent memory threats, delivering uncompromised data accuracy and sustained operational continuity.

Endurance & Reliability

Based on the ECC, Registered, and 240-pin RDIMM specifications, this is unequivocally server memory. The 2 GB DDR3-1333 module targets legacy or density-optimized enterprise platforms. Below are capacity planning guidelines for typical server workloads using this module.

General Virtualization
Virtualization hosts are sensitive to total capacity, not raw speed. For a modest hypervisor running 10-15 light VMs, install six 2 GB modules across triple-channel architecture to secure 12 GB – sufficient for overhead and guest memory. Prioritize populating all memory channels identically to maintain balanced interleaving and avoid bandwidth starvation.

In-Memory Database
In-memory databases demand absolute capacity and low latency, making the 2 GB module a density bottleneck. Deploy the maximum supported DIMMs per server (e.g., 12 modules across three channels for 24 GB) for small cache instances. For production datasets, bypass this module in favor of higher-density RDIMMs, as populating dozens of 2 GB sticks increases power draw and fault probability.

High-Performance Computing (HPC)
HPC clusters often require bandwidth over capacity per node. Populate all memory channels symmetrically with one 2 GB RDIMM each to enable maximum memory interleaving and throughput for MPI tasks. For dual-socket nodes, mirror the configuration across both processors to preserve NUMA locality, aiming for 12–24 GB per node depending on core count.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R710, HP ProLiant DL380 G7, IBM x3650 M3, Cisco UCS C220 M3.

FAQ