General

Engineer's Note

Designed as an 8GB DDR3-1333 Registered ECC RDIMM with a low 1.35V operating voltage, this module is purpose-built for entry-level servers and small-scale virtualization hosts where data integrity and stability under continuous load are critical. The dual-rank x4 organization and CL9 latency optimize memory bandwidth and command scheduling efficiency, while registered signalling and ECC enable reliable operation in platforms running memory-intensive applications like light database services or virtualized network functions.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors in real time, safeguarding data integrity for transactional databases and preventing costly downtime in enterprise servers.
2. Registered DIMM buffers stabilize the electrical load on the memory controller, allowing fully populated multi-rank configurations without sacrificing signal reliability in dense rack deployments.
3. Dual Rank x4 organization enables bank interleaving that maximizes sustained throughput, essential for maintaining smooth virtual machine responsiveness under heavy consolidation.
4. 1.35V low-voltage operation reduces thermal footprint and energy draw per DIMM, directly lowering cooling costs and power bills in always-on data centers.
5. 1333 MHz speed delivers balanced, consistent memory bandwidth for legacy server workloads, ensuring dependable performance without introducing unnecessary latency or compatibility risks.

Why These Specs Matter

Designed for enterprise servers and workstations, the Micron MT36KSF1G72PZ-1G4D1AD is an 8GB DDR3 RDIMM that turns four critical engineering choices into real-world data center resilience. Its ECC technology actively detects and corrects single-bit memory errors, the kind of silent data corruption that can crash a virtualization host or slowly poison financial records inside an in-memory database like SAP HANA. For your consolidated VMware cluster running dozens of VMs on a single node, that means preventing a flipped bit from cascading into multi-tenant downtime. The registered signal buffer on this 240-pin module stabilizes command and address lines, so you can populate all memory channels with confidence—essential when scaling to hundreds of gigabytes for large Redis or memcached instances where stalled transactions directly impact user-facing latency. The dual-rank x4 organization increases bank-level parallelism, giving memory-intensive analytics workloads measurably higher sustained bandwidth under heavy concurrent access. Perhaps most overlooked is the 1.35V low-voltage operation: in a fully populated 24-DIMM server, that reduction from standard 1.5V cuts memory power draw significantly, lowering both electricity bills and thermal stress inside the chassis. Every choice here speaks directly to the server admin’s daily reality—maximizing uptime, protecting data integrity, and stretching operational budgets in 24/7 environments where memory is the literal foundation of every virtualized service.

Endurance & Reliability

General Virtualization
For a dual-socket virtualization host, populate at least three identical 8 GB RDIMMs per processor to enable triple-channel operation, delivering 48 GB total as an entry capacity for moderate VM density. Scale to six modules per CPU (96 GB total) when hosting heavier multi-tenant workloads or memory-overcommitted guests, maintaining balanced ranks for consistent latency. Always install modules in matched sets across memory channels to avoid NUMA penalties and maximize throughput.

In-Memory Database
In-memory databases demand maximal bandwidth and absolute data integrity, so fully populate all memory channels with these 8 GB ECC Registered DIMMs, ideally one dual-rank module per channel to sustain 1333 MHz without clock downgrades. For a typical dual-socket server with eight channels, this yields a reliable 64 GB footprint, suitable for moderate Redis or SAP HANA staging nodes. If larger datasets require expansion, add a second identical DIMM per channel while accepting a slight latency trade-off, ensuring equal loading across all banks.

High-Performance Computing
HPC clusters prioritize bandwidth over sheer capacity, so deploy one 8 GB RDIMM in every available memory channel of each compute node to unlock the full aggregate bandwidth of the platform. In a dual-processor node with four channels per CPU, this 1-DIMM-per-channel rule provides 64 GB of balanced, low-latency memory ideal for MPI-bound simulations and fluid dynamics codes. Maintain uniformity by using only these dual-rank x4 modules, as mixing ranks or capacities can force BIOS-level downgrades that erode the deterministic performance HPC requires.

Verified Compatibility

Rigorously tested for servers, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, and more.

FAQ