General

Engineer's Note

Designed for enterprise servers, this DDR5-6400 Registered DIMM with ECC delivers exceptional data integrity and stability for virtualization, in-memory databases, and mission-critical workloads. Its single-rank x8 configuration and registered signal architecture minimize electrical loading on the memory bus, enabling higher populated capacities while maintaining reliable 6400MT/s operation.

Technical Specs & Insights

1. Registered DIMM architecture enables stable operation with large memory populations, minimizing signal integrity issues in dense server racks that demand maximum uptime.
2. ECC error identification actively corrects single-bit memory faults, safeguarding transactional databases and in-memory workloads against silent data corruption.
3. DDR5 technology doubles the burst length and bank groups, allowing higher concurrent data access essential for modern virtualized environments and container orchestration.
4. 6400 MT/s speed per DIMM significantly raises memory bandwidth, accelerating large dataset analytics and AI inference pipelines that stream massive amounts of data.
5. Single Rank x8 configuration reduces electrical loading on the memory channel, helping maintain top transfer rates in multi-slot server boards while preserving compatibility across mixed workloads.

Why These Specs Matter

In the modern data center, the Samsung M321R2GA3EB2-CCP DDR5 Registered DIMM is a strategic asset, not just a component. As a server-grade RDIMM with full ECC, it actively defends against silent data corruption, a critical threat in dense virtualization clusters. If you are running dozens of VMware or Hyper-V guests on a single host, a random bit flip in standard memory can cascade into unexplained crashes and corrupt transaction logs. ECC correction eliminates this risk, turning potential downtime into continuous uptime. The Registered Clock Driver then steps in to buffer command and address signals, enabling you to fully populate all memory channels with stable signal integrity. This is indispensable when deploying heavy in‑memory databases like Redis or SAP HANA, where reliability at scale is non-negotiable. Operating at a swift 6400MT/s and configured as a single‑rank x8 module, it delivers ultra-low latency and maximized bandwidth to accelerate real‑time analytics. For a financial trading engine ingesting millions of events per second, that speed means the difference between winning a bid and missing an opportunity. Combining hardened data integrity, scalable signal stability, and blistering throughput, this 16GB module directly safeguards your service‑level agreements and accelerates insight.

Endurance & Reliability

General Virtualization
Populate all available memory channels with one 16GB RDIMM per channel (1DPC) to maximize bandwidth while maintaining a balanced NUMA topology. For a typical dual-socket server with eight channels, installing sixteen modules yields 256GB, providing ample headroom for mixed VM workloads. Scale capacity by adding matching DIMMs in identical sets across sockets to preserve symmetry and predictable performance.

In-Memory Database
Low latency and high capacity are critical; install modules to fill every channel at 1DPC for the best DDR5-6400 speed and registered ECC reliability. A 512GB footprint using 32 modules (16 per CPU in a dual-socket system) keeps the entire working set in DRAM for real-time analytics. Plan for growth by reserving a few slots or designing an upgrade path with identically ranked parts.

High-Performance Computing (HPC)
Memory bandwidth directly governs simulation throughput, so deploy a single 16GB RDIMM per channel across all controllers to sustain the full 6400MT/s data rate. A fully balanced configuration—such as sixteen modules in a dual-socket, eight-channel platform—delivers peak stream performance for large-scale modeling. Avoid populating the second DIMM per channel, as that would drop speed and introduce contention under heavy parallel I/O.

Verified Compatibility

Rigorously tested server memory. Validated for Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.

FAQ