General

Engineer's Note

This Samsung VLP RDIMM is a server-grade module engineered for dense, space-constrained data center environments, where its very low-profile form factor maximizes airflow in 1U and blade chassis. The Registered ECC architecture combined with dual-rank x8 organization ensures exceptional signal integrity and data reliability under heavy transactional workloads, making it ideal for virtualization clusters and in-memory databases that cannot tolerate silent data corruption.

Technical Specs & Insights

1. ECC error correction safeguards data integrity in virtualized environments, preventing silent memory corruption that could crash critical database transactions.
2. Registered buffering relieves the CPU's memory controller load, enabling dense configurations essential for large-scale virtualization and in-memory analytics without sacrificing signal integrity.
3. Very low profile form factor maximizes airflow in compact 1U and 2U servers, directly reducing thermal throttling and improving long-term mission-critical reliability.
4. Sixteen-gigabyte per DIMM capacity provides an optimal density sweet spot for web and microservices hosting, allowing flexible scaling without exhausting valuable server I/O slots.
5. Dual-rank x8 organization interleaves data across internal banks, boosting sustained throughput under heavy multi-threaded workloads like OLTP and machine learning inference.

Why These Specs Matter

The Samsung M392A2K43BB0-CPB0Q is a 16GB DDR4-2133 VLP RDIMM purpose-built to address the real-world vulnerabilities of dense server infrastructure. Its Error Correction Code (ECC) silently scrubs single-bit memory errors before they can corrupt virtual machine states or transactional data in a virtualization cluster, directly preventing application outages and data integrity failures that lead to financial loss. The Registered signal re-drive circuitry stabilizes multi-DIMM configurations, so when you fully populate a server for an in-memory database like Redis or SAP HANA, you maintain clean signal integrity and reliable operation under massive load—no unexplained crashes during peak transactions. The Very Low Profile (VLP) design fits effortlessly into high-density 1U and 2U rack servers, preserving critical airflow and keeping thermal margins safe where every millimeter matters for 24/7 reliability. Finally, the Dual Rank x8 architecture leverages rank interleaving to boost effective memory bandwidth. In environments where dozens of VMs contend for memory, and in-memory databases demand sub-millisecond latency, this translates to measurably smoother performance and faster query responses without adding CPU cores or expensive hardware, making it a strategic asset for consolidation and real-time analytics.

Endurance & Reliability

General Virtualization
For a multi-socket server, populate at least one VLP RDIMM per memory channel to maximize bandwidth for diverse VMs. Start with four modules (64 GB) in a balanced configuration across processors, leaving half the channels free for future scaling. This ECC Registered DDR4-2133 module ensures data integrity under sustained mixed workloads.

In-Memory Database
Capacity is paramount—deploy the maximum supported module count per server, fully populating all channels with these 16 GB dual-rank DIMMs. A typical two-socket system with 16 slots can reach 256 GB, enabling large in-memory datasets without swapping. The registered ECC design maintains stability during high-throughput transactional loads.

High-Performance Computing (HPC)
Prioritize memory bandwidth: install one dual-rank RDIMM per channel to keep the 2133 MT/s speed without downclocking. For a dual-processor node, eight modules (128 GB) across all eight channels deliver the best throughput for parallel simulations. The VLP form factor also improves airflow in dense cluster racks, critical for sustained compute jobs.

Verified Compatibility

Tested reliable. Compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.

FAQ