General

Engineer's Note

Engineered specifically for enterprise-grade server environments, this DDR4-3200 Registered DIMM with ECC ensures uncompromising data integrity and system stability under heavy, sustained loads typical of virtualization clusters and in-memory databases. Its dual-rank x8 organization and CL22 latency optimize bandwidth and interleaving efficiency, while the 1.2V registered signal path minimizes electrical loading on the memory bus to support dense, multi-DIMM configurations.

Technical Specs & Insights

1. Registered signal type stabilizes high-density server memory configurations by buffering command and address signals, ensuring reliable operation in multi-DIMM setups typical of virtualization hosts.

2. ECC error correction instantly detects and corrects single-bit memory faults, preserving transactional data integrity across financial databases or hyper-converged infrastructure.

3. DDR4-3200 bandwidth at PC4-25600 speeds accelerates in-memory analytics and real-time processing, minimizing data fetch stalls on heavily loaded database servers.

4. 16 GB capacity per module strikes a dense memory footprint per channel, enabling more virtual machines per physical node without sacrificing response time under consolidation.

5. Dual rank x8 organization keeps the memory controller’s prefetch buffers fully fed, sustaining consistent throughput during simultaneous multi-tenant workloads and large-scale container orchestration.

Why These Specs Matter

Based on the parameters, the M393A2K43DB2-CWEBY is a Registered DIMM with ECC and DDR4-3200 speed, designed specifically for server platforms—not desktop or notebook use.

As a server memory module, its four defining characteristics directly address the critical pain points of data-center operations. The ECC functionality continuously corrects single-bit errors that cosmic rays or electrical noise can cause, meaning a virtualized cluster hosting dozens of tenants won’t suffer silent data corruption that triggers unexplained VM crashes or financial inaccuracies. The Registered architecture buffers command and address signals, so you can fully populate all memory channels—even in a 24‑DIMM box—without signal degradation. This is non‑negotiable for dense memory‑database servers where terabytes of buffer pool must stay stable under ceaseless query loads. The Dual Rank x8 organization enables rank interleaving, overlapping access cycles to sustain higher bandwidth when hundreds of virtual machines simultaneously hammer memory; it prevents the throughput collapse that ordinary single‑rank modules exhibit under concurrency. Finally, the 1.2V operation slashes thermal output per module, so a fully loaded memory‑optimized node draws less cooling power and extends hardware longevity. In demanding scenarios like an in‑memory Redis cluster powering real‑time fraud detection or a VMware farm consolidating hundreds of virtual desktops, these features translate directly into hardened uptime, consistent low latency, and lower total cost of ownership.

Endurance & Reliability

General Virtualization
For virtualization hosts, populate every memory channel with one 16GB DDR4-3200 RDIMM to maximize bandwidth and enable seamless VM failover. A typical dual-socket server with 8 modules per CPU provides 256GB, supporting over 50 general-purpose VMs. Always use identical ECC registered DIMMs for data integrity and balanced NUMA access.

In-Memory Database
In-memory databases demand the largest possible RAM footprint; fully populate all DIMM slots with these 16GB RDIMMs to keep hot datasets resident. A 24-slot system then delivers 384GB of ECC memory, and the dual-rank x8 organization increases bank groups for better database throughput. For scale-out deployments, standardize on this module across nodes for consistency.

High-Performance Computing
HPC nodes should be configured with one DIMM per channel to sustain the full DDR4-3200 speed, which is critical for memory-bound workloads. Using 16 of these 16GB RDIMMs in a 16-channel server gives 256GB and prevents clock rate reduction. The registered ECC design guarantees reliability during multi-day simulation runs.

Verified Compatibility

Rigorously tested for reliable compatibility with Dell PowerEdge R750, HPE DL380 Gen10, Lenovo SR650 V2.

FAQ