General

Engineer's Note

This 64GB DDR4-3200 RDIMM is engineered for enterprise servers and virtualization hosts running memory-intensive workloads such as in-memory databases and large-scale hypervisor deployments. Its registered ECC architecture with dual-rank x4 DRAM configuration ensures signal integrity across fully populated memory channels while providing single-bit error correction, critical for maintaining data accuracy in 24/7 mission-critical environments.

Technical Specs & Insights

1. A 64GB capacity per module packs dense memory into limited server slots, empowering high-density virtualization and large in-memory datasets without resorting to slower storage.
2. ECC error correction actively detects and corrects single-bit errors, preventing silent data corruption in financial transactions and critical database operations.
3. Registered DIMM technology buffers control signals to stabilize communication, enabling a server to host massive memory populations reliably across many DIMMs per channel.
4. The DDR4-3200 speed provides 25.6 GB/s of bandwidth per channel, essential for real-time analytics and quick response under heavy concurrent user loads.
5. Dual Rank x4 organization interleaves accesses and leverages x4 DRAM for superior error containment, maximizing channel utilization while strengthening system uptime.

Why These Specs Matter

The Samsung M393A8G40BB4-CWEBQ is a 64GB DDR4-3200 RDIMM purpose‑built for enterprise servers, and its four defining traits directly solve real‑world infrastructure challenges. ECC corrects single‑bit errors automatically, preventing silent data corruption that could crash a virtual machine or corrupt a financial record. Registered clock drivers buffer command signals, allowing you to install massive memory configurations without compromising stability—essential when hosting 40+ VMs on one node. The dual‑rank x4 architecture interleaves data across ranks, boosting bandwidth and reducing contention in memory‑intensive applications such as SAP HANA or Redis caching layers, where every extra millisecond costs user experience. Meanwhile, 3200 MT/s speed combined with a low 1.2V supply delivers high throughput while cutting power and cooling demands, directly lowering your total cost of ownership. In a virtualization cluster running hundreds of containers or a real‑time analytics platform, data integrity, scalable capacity, and consistent low latency are not just features—they are the bedrock of reliable operations.

Endurance & Reliability

General Virtualization
In a dual-socket server with eight memory channels per CPU, install at least eight of these 64GB Registered ECC DDR4-3200 modules (four per processor, one per channel) to deliver 512GB of balanced capacity. This configuration avoids memory bandwidth bottlenecks and leaves slots free for future scaling as virtual machine density grows. For larger consolidation estates, populate all 16 DIMM slots to reach 1TB while observing uniform interleaving.

In-Memory Database
Workloads like SAP HANA require the entire dataset to reside in RAM, so maximum capacity is paramount. Populate every available DIMM slot with these dual-rank 64GB RDIMMs; a 16-slot dual-processor platform achieves 1TB, enabling large in-memory instances without resorting to costly 128GB modules. Keep memory sparing disabled to use every gigabyte, but retain a cold spare module for rapid replacement.

High-Performance Computing (HPC)
For bandwidth-sensitive simulations, install one DIMM per channel across all available channels—typically one module per eight channels per CPU—yielding 512GB while sustaining the full 3200MT/s speed. Populating a second DIMM per channel would drop the clock or force slower timings, directly hurting floating-point throughput. If capacity demands exceed 512GB, consider moving to a platform with more memory channels rather than sacrificing frequency.

Verified Compatibility

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

FAQ