General

Engineer's Note

This 32GB DDR4-3200 RDIMM with registered ECC and a dual-rank x4 configuration is engineered for enterprise servers running memory-intensive workloads like virtualization and in-memory databases, where high data integrity and sustained throughput are critical. Its 1.2V low-power operation and CL22 latency deliver a stable, energy-efficient signal path that maintains reliability even in densely populated multi-DIMM systems.

Technical Specs & Insights

1. ECC protection silently corrects single-bit errors, a non-negotiable safeguard for financial transactions and mission-critical workloads where data integrity is paramount.
2. Registered signal buffering stabilizes the command and address bus when populating all channels, essential for maintaining signal integrity in dense, multi-DIMM server configurations.
3. The 32GB capacity per module maximizes memory density per channel, enabling more virtual machines to reside in physical RAM without costly swap disk access.
4. A 3200MHz transfer rate delivers the high bandwidth necessary for in-memory databases and real-time analytics, preventing data bottlenecks under concurrent query loads.
5. Dual Rank x4 organization interleaves memory accesses across ranks, boosting effective throughput and keeping CPU pipelines fed during heavy virtualization or container orchestration.

Why These Specs Matter

When running a dense virtualization cluster or an in-memory database like SAP HANA, memory errors are not just annoyances—they are threats to data integrity and uptime. The Samsung M393A4K40CB2-CWE 32GB DDR4 RDIMM is purpose-built to eliminate those risks. Its ECC technology actively detects and corrects single-bit flips caused by cosmic radiation or electrical noise, preventing silent data corruption that could crash a hypervisor hosting dozens of VMs or skew a real-time analytics result. The registered signal type buffers the command and address lines, so even when you fully populate all channels in a 2-socket server, the memory controller sees a stable, reliable load—this translates directly into predictable performance under heavy consolidation scenarios. With a dual-rank x4 organization running at 3200MHz and CL22, the module balances capacity and bandwidth efficiently: databases keep large working sets in fast memory, while interleaving across ranks reduces latency spikes during concurrent query storms. In practical terms, this means your virtualized environment stays up, your transactions commit without silent errors, and your users experience consistent responsiveness—exactly what enterprise computing demands.

Endurance & Reliability

General Virtualization
For a typical hypervisor hosting mixed workloads, deploy six to eight of these 32GB RDIMMs across balanced memory channels to achieve 192–256GB total capacity. Populate identically across CPU memory controllers, using one DIMM per channel wherever possible, to maintain uniform latency and maximize VM density without overcommitting ECC-protected resources.

In-Memory Database
Latency-sensitive databases like Redis or SAP HANA demand the largest possible capacity footprint, so fill all 16 or 24 DIMM slots with these dual‑rank 32GB modules for 512GB to 768GB configurations. Pair them with a matching set in a 2‑socket server and keep ranks per channel at two or fewer to avoid speed downgrades, allowing the full 3200MT/s throughput for real‑time analytics.

High‑Performance Computing
HPC workloads benefit from high memory bandwidth, so install one 32GB RDIMM in every channel across all sockets—eight modules in a dual‑socket node for 256GB. This single‑DIMM‑per‑channel population runs at the rated 3200MHz with CL22, delivering the lowest latency and maximum sustained bandwidth for tightly‑coupled MPI jobs and simulation codes.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2, and more.

FAQ