General

Engineer's Note

This RDIMM with ECC and registered signal type is purpose-built for server-class platforms, delivering enhanced data integrity and stability for memory-intensive workloads such as virtualization and in-memory databases. The dual-rank x4 organization with CL9 latency optimizes memory bandwidth and access efficiency, making it ideal for sustaining high transaction rates in enterprise data centers.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors in real time, preventing silent data corruption in financial transactions or database lookups that demand absolute integrity.
2. Registered signal buffering stabilizes command and address lines across fully populated server boards, enabling reliable operation even when all DIMM slots are occupied by high-density modules.
3. A dual-rank design interleaves access across internal banks, maintaining peak bandwidth utilization for virtualization hosts that run multiple VMs contending for memory simultaneously.
4. The 1333MHz operating speed delivers balanced throughput for mid-range enterprise workloads, keeping response times predictable under steady concurrent user loads.
5. Modest capacity per stick allows cost-effective scaling in branch-office appliances or lightweight dedicated servers where total memory is tuned to a fixed, predictable working set.

Why These Specs Matter

The Micron MT36JSZF51272PY-1G4D RDIMM brings four essential attributes that directly address the pain points of enterprise servers. ECC corrects single-bit errors from cosmic radiation or aging components, preventing silent data corruption—a must for a virtualization cluster where undetected errors can crash multiple guest VMs and cause revenue loss. The registered buffer stabilizes command/address signals, letting dense 2-socket servers fully populate all DIMM slots without signal degradation, so you can scale memory capacity for larger VM densities confidently. Its dual-rank x4 organization increases bank-level parallelism; in an in-memory database like Redis, concurrent read/write operations access separate banks simultaneously, slashing latency and accelerating thousands of transactions per second. Finally, the standard 1.5V, 1333MHz speed with CL9 timing ensures cool, predictable operation 24/7, avoiding thermal hotspots that threaten uptime in crowded racks. For your critical workloads, this RDIMM means higher availability, denser consolidation, and faster data delivery.

Endurance & Reliability

This module is a 4GB DDR3-1333 Registered ECC RDIMM designed for legacy server platforms. Capacity planning depends heavily on channel population and speed rules.

General Virtualization
Populate every memory channel with at least two identical DIMMs to balance capacity and bandwidth. In a typical dual‑socket server with four channels per CPU, installing two dual‑rank 4GB modules per channel yields 64GB total, supporting moderate VM density while retaining full 1333MHz speed.

In‑Memory Database
Maximize capacity by filling all available slots, accepting possible frequency trade‑offs. With three DIMMs per channel on that same dual‑socket platform (24 modules), you reach 96GB, but the memory controller may down‑clock to 1066MHz. Ensure identical ranks across all channels for consistent ECC and large‑page performance.

High‑Performance Computing (HPC)
Prioritize sustained bandwidth for parallel codes. Use exactly two DIMMs per channel—exploiting dual‑rank interleaving—to keep the memory bus at 1333MHz. This 64GB configuration (16 modules across eight channels) delivers both the capacity for working sets and the memory parallelism required by simulation and modeling workloads.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell R710, R720, HP DL380 G7, IBM x3650 M3, and similar systems.

FAQ