General

Engineer's Note

This RDIMM is engineered for enterprise servers and virtualization platforms, where its registered signal type and ECC error correction deliver uncompromising data integrity under sustained, heavy-load scenarios such as in-memory databases and multi-tenant hypervisors. The single-rank x8 organization at DDR4-3200 with CL22 latency optimizes memory bus efficiency and thermal headroom, making it ideal for dense 1.2 V deployments that demand high throughput coupled with strict power and thermal constraints.

Technical Specs & Insights

1. Registered DIMM buffering isolates the command and address lines from the module’s memory chips, enabling fully populated memory channels without signal degradation and ensuring non-stop operation in dense server environments.
2. ECC protection corrects single-bit errors on the fly, preventing silent data corruption in transactional databases and preserving long-term computational accuracy for scientific workloads.
3. DDR4-3200 data rate supplies the per-channel bandwidth necessary to saturate multi-core server processors, reducing memory latency under heavy concurrent query loads.
4. 1.2 V low-power operation trims overall rack-level power draw, directly translating to lower electricity bills and reduced airflow demands in hyperscale data centers.
5. Single-rank x4 configuration minimizes electrical loading on the memory bus, preserving stable high-frequency signaling when scaling memory across all DIMM slots in a virtualization host.

Why These Specs Matter

In the data center, where every transaction and virtual machine depends on absolute data fidelity, an undetected bit-flip caused by background radiation can corrupt financial records or crash critical services. The Samsung M393A1K43DB2-CWEBG 8GB DDR4-3200 RDIMM is engineered to eliminate that risk. Its end-to-end ECC continuously detects and corrects single-bit errors in real time, safeguarding database integrity in memory-intensive applications like in-memory financial trading platforms. When you scale up to dense virtualization clusters running dozens of VMs per node, signal integrity becomes a major bottleneck. The Registered architecture of this module buffers the command and address lines, stabilizing the electrical load across multiple DIMMs and allowing the platform to support higher capacities without sacrificing the blazing 3200 MT/s speed. For latency-sensitive workloads such as Redis or SAP HANA, the Single Rank x8 organization optimizes bandwidth and access patterns, reducing contention and improving response times under heavy concurrent access. Operating at just 1.2V, it simultaneously lowers the thermal and power burden in 24/7 server farms, directly translating into a cooler, more reliable infrastructure and a reduced total cost of ownership.

Endurance & Reliability

General Virtualization
For a typical virtualization host, populate at least six 8GB RDIMMs per socket to reach 48GB, enabling balanced memory channels on dual-socket servers. A six-module configuration using one DIMM per channel delivers optimal bandwidth for moderate VM density. When memory overcommit is not desired, scale to eight identical modules for 64GB total, preserving registered ECC reliability.

In-Memory Database
In-memory databases demand large capacity and high availability, so install full population across all memory channels—twelve 8GB RDIMMs for 96GB per socket is a common starting point. Leveraging the DDR4-3200 speed with one DIMM per channel ensures maximum throughput while ECC corrects single-bit errors critical for data integrity. Move to dual-rank modules if future expansion requires denser configurations without sacrificing latency.

High-Performance Computing (HPC)
HPC clusters benefit from channel balance and modest capacity per node, making eight 8GB modules (64GB) an efficient sweet spot on dual-socket nodes. The registered ECC signaling keeps large-scale computations stable, while single-rank x8 modules help maintain high clock speeds under load. For memory-bandwidth-bound workloads, populate all sixteen slots with identical 8GB RDIMMs to fully utilize interleaving and sustain peak floating-point performance.

Verified Compatibility

Rigorously tested, this server memory is compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.

FAQ