General

Engineer's Note

This 16 GB DDR4-3200 registered ECC module is purpose-built for server platforms handling virtualization, in-memory databases, and critical enterprise workloads that demand uncompromising data integrity. Its dual-rank x8 organization leverages rank interleaving to improve effective bandwidth while the registered buffer reduces channel loading, ensuring signal stability in fully populated memory configurations.

Technical Specs & Insights

1. ECC error correction continuously detects and fixes single-bit memory faults, preserving data integrity for mission-critical database and transaction servers where even one bit flip could corrupt financial records.
2. Registered signal buffering decouples the command and address bus from the memory controller, enabling stable operation with fully loaded DIMM slots essential for dense virtualization farms.
3. Dual Rank x8 organization alternates between two internal rank groups to interleave requests, effectively boosting accessible bandwidth when hosting numerous concurrent virtual machines.
4. 3200MT/s transfer rate elevates the data pipe per channel, absorbing bursty traffic peaks during live migration orchestration or real-time analytics aggregation.
5. 1.2V operating voltage reduces thermal load per module, lowering overall rack power consumption and easing cooling demands inside always-on enterprise data centers.

Why These Specs Matter

When your virtualized cluster hosts dozens of mission-critical VMs, a single undetected bit flip in memory can corrupt a database transaction or silently cascade into service outages. The M393A2K43DB3-CWERF, an RDIMM built for server precision, transforms that risk into assurance through four architectural decisions that directly answer enterprise pain points. Its ECC engine actively corrects single-bit errors in real time, shielding your memory-resident databases like SAP HANA or Redis from data poisoning without performance penalty—financial integrity simply isn’t negotiable. The registered signal buffer on this 288-pin DDR4-3200 module stabilizes command and address lines across dense DIMM populations, so you can populate all channels in a 2-socket virtualization host without signal collapse, achieving the massive 512 GB+ footprints your hypervisor demands. With a dual-rank x8 organization at CL22, interleaved access boosts effective bandwidth; when hundreds of VMs contend for memory, that parallelized data fetch reduces latency jitter under load, keeping container orchestration responsive. And at the standard 1.2 V, power draw stays contained across a rack full of machines, lowering your thermal and operating cost profile. This module doesn’t just meet spec—it becomes the silent foundation where every additional virtual machine and every in-memory query simply runs without compromise.

Endurance & Reliability

Capacity Planning for DDR4-3200 Registered ECC Memory (16GB RDIMM)

This is a server-class DDR4-3200 Registered DIMM with ECC, dual-rank x8 organization and CL22 latency. It is designed for stable, high-density deployments in dual-socket platforms that support up to 288-pin RDIMM slots. Use the following guidance to match module counts and configurations to your workload.

General Virtualization
Aim for balanced capacity and bandwidth by populating all memory channels symmetrically. In a typical dual-socket server with eight channels per CPU, install one 16GB RDIMM per channel (16 modules total) to achieve 256GB while maintaining maximum native speed. This supports a high density of virtual machines and allows future expansion by filling the remaining DIMM slots.

In-Memory Database
Maximize capacity first, as in-memory datasets directly dictate performance. Populate all available DIMM slots with 16GB RDIMMs—often reaching 512GB or more per node—while keeping a balanced channel configuration. The dual-rank design delivers good bank-level parallelism, which helps sustain high throughput under random access patterns common in Redis, Memcached, or SAP HANA deployments.

High Performance Computing
Prioritize memory bandwidth by adhering to a one-DIMM-per-channel configuration, which prevents speed downgrades to 2933MT/s or lower on many platforms. Install eight identical 16GB RDIMMs per socket (128GB per CPU) to keep the interconnection fabric fully utilized. If per-node capacity falls short, scale out with additional compute nodes rather than adding a second DIMM per channel, preserving peak bandwidth for simulation, modeling, and data analytics workloads.

Verified Compatibility

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

FAQ