General

Engineer's Note

This 64GB DDR4-3200 Registered ECC RDIMM is purpose‑built for server platforms running memory‑intensive workloads such as virtualization, in‑memory databases, and data analytics, where end‑to‑end data integrity is critical. The dual‑rank configuration maximizes channel bandwidth efficiency, while registered signaling and ECC provide the signal stability and single‑bit error correction needed to sustain 24/7 uptime in dense multi‑DIMM configurations.

Technical Specs & Insights

1. A 64GB capacity per module maximizes memory density in multi-slot servers, enabling more virtual machines and containers per physical host without sacrificing performance.

2. 3200MT/s data rate elevates available memory bandwidth, helping real-time analytics and in-memory databases process larger datasets with lower latency under concurrent workloads.

3. ECC protection corrects single-bit errors and detects multi-bit corruption, directly reducing the risk of silent data corruption in financial transactions and long-running computational tasks.

4. Registered signal buffering stabilizes command and address signals across fully loaded memory channels, ensuring reliable operation when all DIMM slots are populated in large-scale virtualization clusters.

5. Dual Rank organization interleaves memory accesses across two internal ranks, keeping the memory pipeline busy and delivering consistent throughput for bandwidth-sensitive enterprise applications.

Why These Specs Matter

When you are managing a virtualized cluster hosting dozens of business-critical VMs, an undetected bit flip in memory is not a theoretical concern—it is a crash, a corrupted transaction, or an unplanned failover waiting to happen. The Samsung M393A8G40CB4-CWECQ, a 64GB DDR4-3200 Registered DIMM, is engineered precisely for these moments. Its ECC technology actively catches and corrects single-bit errors, preserving data integrity from background radiation or electrical noise, which directly translates into fewer application anomalies and higher uptime. The Registered (RDIMM) design uses an onboard buffer to stabilize address and command signals, allowing you to fully populate all 24 or 32 DIMM slots per server without signal degradation—essential when you need to scale to terabytes of RAM for dense virtualization hosts or large in-memory databases like SAP HANA or Redis. In such databases, where every microsecond of latency erodes real-time analytics performance, the module’s Dual Rank architecture interleaves memory banks to elevate sustained bandwidth under heavy parallel loads. This means your multi-socket server can process more concurrent queries and more virtual machines with predictable, low-latency throughput. Together with 1.2V low-power operation that reduces thermal strain in packed racks, this module shifts the conversation from component specifications to business outcomes: reduced downtime, streamlined capacity planning, and a lower total cost of ownership for the data center.

Endurance & Reliability

Server Memory Identified: This is a 64GB DDR4-3200 Registered ECC RDIMM (Dual Rank, CL22, 1.2V), designed for server-class platforms.

General Virtualization
Deploy modules in multiples of 8 to populate all memory channels on typical dual-socket servers, maximizing bandwidth for dense VM hosting. A balanced configuration uses 8x64GB (512GB total) to comfortably support 50+ moderate VMs while leaving room for memory overcommit overhead. Always match identical DIMMs across channels for uniform latency.

In-Memory Database
Prioritize capacity and interleave depth by fully populating each memory channel with dual-rank 64GB RDIMMs. Configurations like 16x64GB (1TB per socket) are ideal for large Redis or SAP HANA instances, ensuring datasets remain in RAM and leveraging ECC to guard against silent data corruption. Keep one spare DIMM per node for instant resilience.

High-Performance Computing
Focus on balanced memory bandwidth over raw capacity; populate one DIMM per channel (1DPC) with 64GB RDIMMs to achieve the highest native 3200 MT/s speed without clock downgrades. For dual-socket infinity fabric architectures, 8x64GB (512GB) delivers optimal bandwidth-to-core ratios for MPI workloads, minimizing NUMA latencies.

Verified Compatibility

Strictly tested 64GB DDR4-3200 RDIMM, compatible with Dell R750, HPE DL380 Gen10 Plus, Lenovo SR650 V2, and more.

FAQ