General

Engineer's Note

This registered DDR3-1333 RDIMM with ECC and 1.35V low-voltage operation is purpose-built for server platforms running memory-intensive virtualized environments, in-memory databases, and mission-critical workloads where data integrity and uptime are non-negotiable. Its dual-rank x4 organization and CL9 latency provide balanced rank interleaving for improved throughput, while the registered signal type and ECC ensure stable, error-corrected operation across fully populated 240-pin memory channels.

Technical Specs & Insights

1. ECC protection silently detects and corrects memory errors, preserving data integrity for mission‑critical applications such as financial transactions and virtualized databases.

2. Registered signal buffering stabilizes electrical loading on high‑density memory buses, enabling larger memory footprints and reliable operation under heavy multi‑socket server consolidation.

3. Low‑voltage design slashes overall power draw and thermal output, driving down cooling costs and improving energy efficiency in dense rack‑scale deployments.

4. The robust per‑module capacity allows higher virtual machine density per host, reducing hardware sprawl while sustaining performance under multi‑tenant workloads.

5. Dual‑rank x4 organization leverages bank interleaving to keep memory channels fully utilized, delivering consistent bandwidth for concurrent analytics and large‑scale virtualization.

Why These Specs Matter

When you are running a virtualized cluster or an in-memory database, memory errors are not an inconvenience—they are a financial risk. The Micron MT36KSF2G72PZ-1G4D1 is an enterprise DDR3 RDIMM engineered precisely for these mission-critical moments, and its four defining characteristics directly address the real-world pain points of IT infrastructure teams.

Its ECC technology actively detects and corrects single-bit errors, preventing silent data corruption that would otherwise crash a hypervisor hosting dozens of virtual machines or poison a financial transaction in a Redis stack. The registered signal buffer stabilizes command and address lines, enabling you to populate all 24 DIMM slots in a 2U server without signal degradation—a non-negotiable for large-scale virtualization densities. Operating at just 1.35V, this module reduces the thermal load inside a fully loaded rack, directly cutting cooling costs and improving long-term reliability. Beneath that efficiency lies a dual-rank x4 design at 1333MHz, delivering higher sustained bandwidth and interleaved access patterns that keep latency predictable when multiple VMs compete for I/O or when an in-memory analytics platform scans billions of rows. This is not just memory; it is the architectural assurance that your data center services remain accurate, responsive, and continuously available under real load.

Endurance & Reliability

Based on the specifications—DDR3, ECC Registered RDIMM, 1.35V low voltage, and 240-pin form factor—this is a server memory module. Below is the capacity planning guidance for typical server workloads.

General Virtualization
Virtualized environments thrive on memory density and reliability. Populate at least six to eight identical 16GB RDIMMs across memory channels for balanced NUMA access, providing 96GB to 128GB per host. This configuration allows dozens of lightweight VMs while keeping DIMM ranks per channel low to preserve memory speed. Leverage ECC and registered buffering to prevent costly host crashes.

In-Memory Database
In-memory databases demand both capacity and data integrity. Max out available DIMM slots with these 16GB RDIMMs, targeting 256GB or more per server depending on board limitations. Dual-rank x4 modules deliver a favorable mix of capacity and command rate. Distribute modules evenly across all memory controllers to maximize throughput, and confirm 1.35V operation to reduce energy costs in always-on database clusters.

HPC (High Performance Computing)
HPC workloads need bandwidth over pure capacity. Install one DIMM per channel (1 DPC) to keep the memory bus at the full 1333MHz speed; using multiple modules per channel may force clock speed reductions. Select a mid-capacity footprint, such as 64GB to 128GB per node, using four to eight of these 16GB RDIMMs. This supplies adequate headroom for large datasets while maintaining low latency and peak transfer rates for parallel computation tasks.

Verified Compatibility

Rigorously tested ECC RDIMM, compatible with Dell PowerEdge R720, HP DL380p Gen8, Lenovo x3650 M4.

FAQ