General

Engineer's Note

This 8GB DDR3-1600 VLP RDIMM is purpose-built for dense server deployments where data integrity and signal stability are paramount, utilizing ECC correction and registered logic to support mission-critical virtualization and in-memory database workloads. Its dual-rank x8 organization and very low-profile form factor maximize memory density and improve thermal airflow in 1U/2U rack servers, delivering reliable, high-uptime operation in enterprise platforms.

Technical Specs & Insights

1. ECC: Autonomous single-bit correction eliminates memory-born faults, a non-negotiable requirement for financial batch processing and always-on virtualization hosts.
2. Registered: Registered logic on the address bus preserves signal quality across fully stacked channels, empowering dense server configurations to reach multi-terabyte memory footprints reliably.
3. VLP RDIMM: The reduced module height unlocks deployment in ultra-dense blade and 1U chassis, streamlining airflow to sustain lower core temperatures under load.
4. Dual Rank x8: Parallel access across dual ranks amplifies command throughput, crucial for sustaining IOPS consistency in storage server and VM-heavy roles.
5. 1600MHz speed: Operating at DDR3-1600, the module delivers 12.8 GB/s of bandwidth per channel, smoothing data-heavy transactions during peak query seasons.

Why These Specs Matter

The Micron MT18JDF1G72PDZ-1G6 8GB DDR3-1600 VLP RDIMM is purpose-built for server environments where data integrity and nonstop operation define your bottom line. In a virtualized cluster hosting dozens of VMs, its hardware ECC becomes your frontline defense—cosmic radiation can silently flip memory bits, but ECC detects and corrects single-bit errors before they corrupt your database or crash a hypervisor, turning a potential cascading failure into a non-event. When you scale memory capacity for an in-memory database like Redis or SAP HANA, the registered signal buffer stabilizes every channel, enabling you to populate all 24 slots of a typical 2U server without signal degradation; this means you can confidently deploy dense 192GB+ configurations where every additional gigabyte directly accelerates transaction throughput. The dual-rank x8 design further unlocks rank interleaving, boosting effective bandwidth so multiple virtual machines accessing memory simultaneously experience smooth, consistently low latency instead of performance stalls during consolidation. Finally, the very low profile form factor preserves open airflow in 1U rackmount servers and blade chassis, preventing the silent threat of thermal throttling that can erode speed during peak workloads. In practice, these engineering choices convert into ironclad stability, linear scalability, and sustained performance for critical enterprise workloads.

Endurance & Reliability

Memory Type Identification
This is a server-grade memory module—specifically an 8GB DDR3-1600 VLP RDIMM with ECC and registered signaling. The 240-pin form factor, 1.5V operating voltage, dual-rank x8 organization, and CL11 latency are typical for legacy enterprise servers. It is not suitable for desktop or laptop platforms that require unbuffered, non-ECC memory.

Capacity Planning Guide

General Virtualization
In a typical hypervisor host running 6–10 light-to-moderate VMs, aim for 64–96GB total using 8–12 modules of this 8GB RDIMM across all memory channels. Populate channels evenly to maintain balanced memory interleaving and optimal NUMA performance, and keep at least one identical spare module per server for rapid fault recovery.

In-Memory Database
For in-memory workloads like Redis or SAP HANA on DDR3-era platforms, maximize capacity within socket limits—often 128GB (16 DIMMs) or 256GB (32 DIMMs) per node if supported. Fill all channels with identical 8GB RDIMMs to deliver the lowest latency and highest bandwidth, as dual-rank x8 modules offer good rank interleaving. Configure sparingly: reserve one rank per channel if the system supports rank sparing for enhanced uptime.

High-Performance Computing
HPC clusters benefit from balanced memory per core. For a dual-socket node with 16–24 cores, populate all memory channels with one or two 8GB RDIMMs per channel (64–128GB total) to sustain bandwidth for MPI and OpenMP jobs. Choose the VLP form factor to improve airflow in dense blade or 1U enclosures, and standardize on this single module type to simplify inventory and avoid mixed-rank performance penalties.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R720, HP DL380p Gen8, Lenovo RD430, and Cisco UCS C220 M3.

FAQ