General

Engineer's Note

This 128GB DDR4-2933 RDIMM is engineered for enterprise server platforms, excelling in memory-intensive workloads such as virtualization, in-memory databases, and large-scale data analytics. Its registered signal architecture and ECC ensure signal integrity across high-density quad-rank configurations while maintaining CL21 latency, delivering reliable data integrity in multi-DIMM deployments.

Technical Specs & Insights

1. Error-correcting code protection silently detects and corrects single-bit memory faults, preserving data integrity across long-running virtualization hosts and financial transaction databases.
2. Registered buffering decouples electrical load from the memory controller, enabling fully populated server boards to run heavy analytics workloads without signal degradation or downtime.
3. The module’s generous per-DIMM capacity lets hyperscale deployments achieve multi-terabyte footprints with fewer slots, lowering hardware overhead and boosting virtual machine density per node.
4. Quad-rank x4 organization multiplies the bank groups available to the memory controller, sustaining high concurrency for in-memory SaaS platforms under peak user bursts.
5. Elevated data rate lifts channel throughput substantially, cutting data retrieval time for real-time caching engines and neutralizing performance bottlenecks in scale-out storage clusters.

Why These Specs Matter

When deploying mission-critical server infrastructure, the memory you choose directly dictates uptime and throughput. The Samsung M386AAG40MMB-CVFCO, a 128GB DDR4-2933 RDIMM, excels in environments like virtualization clusters and in-memory databases thanks to four defining attributes. Its massive 128GB capacity per stick allows a dual-socket server to host significantly more virtual machines, delaying costly hardware expansion. Meanwhile, integrated ECC technology continuously corrects single-bit errors and detects multi-bit faults, preventing silent data corruption that could ultimately crash a critical VM or corrupt a financial transaction. The registered buffer re-drives address and command signals, preserving signal integrity when you populate all memory channels, which is essential for maintaining 2933MT/s throughput under heavy load. Finally, the Quad Rank x4 organization employs rank interleaving to hide row-access latency, delivering more consistent bandwidth for latency-sensitive in-memory databases like Redis or SAP HANA. Expect faster queries and real-time analytics, giving you a robust foundation for always-on workloads.

Endurance & Reliability

General Virtualization
This 128GB DDR4-2933 RDIMM is ideal for dense virtualization hosts. Deploy it in a dual-socket server with a balanced population — typically six or eight identical modules per CPU — to unlock full memory bandwidth and allow over 100 virtual machines per node with generous per-VM RAM. The registered ECC design ensures data integrity under sustained, mixed-workload pressure.

In-Memory Database
Large-capacity RDIMMs are the foundation of in-memory database systems. For Redis, SAP HANA, or Memcached clusters, fully populate all channels per socket (1 DIMM per channel) with these 128GB sticks to maximize capacity without sacrificing speed. The 2933MT/s speed and CL21 latency provide the low-latency access essential for real-time analytics and high-throughput caching.

High-Performance Computing
In HPC environments, pair this quad-rank module with memory-intensive simulations and computational fluid dynamics workloads. Configure one module per channel across all available memory channels to achieve the highest aggregate bandwidth while keeping large datasets in RAM. ECC and registered signaling guarantee error-free results during multi-day parallel jobs where even a single-bit flip would corrupt scientific output.

Verified Compatibility

128GB DDR4-2933 RDIMM, rigorously tested for Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ