General

Engineer's Note

This Registered DIMM with ECC is engineered for server platforms, providing critical data integrity for virtualization and in-memory database workloads where fault tolerance is essential. Its single-rank configuration and DDR4-3200 speed, combined with the registered signal type, ensure stable operation at high memory densities while the CL22 latency balances responsiveness and power efficiency in 24/7 data-center environments.

Technical Specs & Insights

1. Error-correcting code protection silently detects and corrects single-bit memory errors, preventing silent data corruption in long-running financial or database workloads.
2. The registered clock driver buffers command and address signals, enabling stable operation across densely populated server boards and reducing electrical loading on the memory controller.
3. 3200 MT/s throughput accelerates in-memory analytics and virtual machine responsiveness, giving hypervisors the headroom to support more guests without throttle.
4. Operating at the low 1.2-volt DDR4 standard reduces overall server power draw and cooling demands, directly lowering total cost of ownership in hyperscale data centers.
5. Single-rank organization allows the module to reach its rated speed with minimal power and timing constraints, ideal for building large-capacity configurations without sacrificing signal integrity.

Why These Specs Matter

For your enterprise server infrastructure, the Samsung M393A1K43DB2-CWEGQ RDIMM is not just another component—it is a guarantor of uptime and responsiveness. This DDR4-3200 module’s four core attributes directly address the pain points you face in dense data-center environments. When running a hypervisor cluster hosting dozens of virtual machines, the Registered signal type buffers command and address lines, preventing electrical loading that would otherwise destabilize a fully populated server board. Meanwhile, the on-die ECC engine silently corrects single-bit errors in real time. In a large-scale virtualization deployment, a random cosmic-ray bit flip can crash an entire host; this module transforms that catastrophic risk into a non-event, preserving weeks of runtime for your VMs. The single-rank organization at 3200MT/s ensures lower I/O latency and higher sustained bandwidth, which is critical for an in-memory database like Redis or SAP HANA. Every microsecond shaved from a cache lookup directly accelerates financial transactions or real-time analytics, while the 1.2V low-power design minimizes thermal load inside densely packed racks, reducing cooling overhead across your data-floor without sacrificing a single IOP.

Endurance & Reliability

General Virtualization
For a typical hypervisor hosting mixed VMs, populate at least six to eight of these 8 GB RDIMMs across channels to reach 64 GB total. Distribute modules evenly per memory channel to maintain balanced access and maximize throughput. Leave two DIMM slots free for future scale‑out without replacing existing sticks.

In-Memory Database
In‑memory databases demand both capacity and data integrity, so deploy twelve or more identical 8 GB RDIMMs to build a 96 GB+ pool. Always install in multiples of the server’s memory channels to sustain high bandwidth under heavy read/write workloads. ECC and registered buffering are essential here to prevent silent data corruption during real‑time analytics.

High‑Performance Computing (HPC)
HPC clusters favour fully populated memory channels for raw bandwidth. Install one 8 GB RDIMM per channel across all available channels, aiming for a minimum of eight modules per node. This ensures peak interleaved performance while single‑rank DIMMs help keep command‑bus loading low, which is critical for sustained floating‑point and MPI job throughput.

Verified Compatibility

Validated server compatibility: rigorously tested on Dell R750, HPE DL380 Gen10 Plus, and Lenovo SR650 V2.

FAQ