General

Engineer's Note

Optimized for server platforms such as Intel Xeon and AMD EPYC, this 32 GB DDR4-3200 RDIMM is ideally suited for virtualization, in-memory databases, and latency-sensitive enterprise workloads where data integrity is critical. Its registered signal type and ECC provide robust electrical stability and single-bit error correction, while the dual-rank x4 organization enhances memory interleaving to deliver sustained bandwidth under heavy multi-channel access.

Technical Specs & Insights

1. ECC memory detects and corrects single-bit errors on the fly, preventing silent data corruption in financial transactions or virtualization hosts where data integrity is non-negotiable.

2. Registered signal type buffers command and address lines, enabling the deployment of high-density memory configurations without signal degradation in large-scale server farms.

3. Dual Rank x4 organization interleaves memory accesses across two internal ranks, sustaining peak bandwidth and low latency under heavy virtual machine consolidation workloads.

4. 3200 MT/s speed supplies the elevated memory throughput required to feed numerous processor cores simultaneously, ensuring responsive database queries and real-time analytics.

5. 32 GB capacity per module allows dense memory provisioning in 2-socket or 4-socket servers, empowering enterprises to run more active VMs and containers per physical node.

Why These Specs Matter

When you are running a virtualized cluster hosting dozens of critical VMs on a single node, or operating an in-memory database where every transaction must be instantly accurate, the M393A4K40EB3-CWEBY RDIMM is not just a component—it is your last line of defense against silent data corruption and costly downtime. Its ECC technology actively detects and corrects single-bit errors caused by background radiation or electrical noise, meaning a stray bit flip in a financial calculation or patient record will not propagate into a catastrophic result. The registered buffer chip decouples the memory controller from the DRAM loads, allowing you to populate all 24 or 32 DIMM slots without signal degradation—so your hypervisor can confidently scale to terabytes of RAM while maintaining rock‑solid stability. With a dual‑rank x4 organization and 3200 MT/s bandwidth, this module enables rank interleaving that overlaps read/write operations, dramatically boosting throughput for latency‑sensitive workloads like SAP HANA or large Redis caches. In a virtualized environment, that translates to lower CPU steal time and faster live migration; in a real‑time analytics engine, it means more concurrent queries served before users perceive any lag. Simply put, this memory ensures your infrastructure never becomes the bottleneck between your business and its data.

Endurance & Reliability

General Virtualization
For general virtualization, populate each memory channel with one 32GB RDIMM to balance capacity, bandwidth, and cost. On a typical dual-socket server with eight channels per CPU, this yields 512GB, comfortably supporting mid‑range VM densities. ECC and registered signaling maintain stability under multi‑tenant workloads.

In-Memory Database
In‑memory databases require maximum reliable capacity. Install one 32GB DIMM per channel as a baseline, and move to two per channel if the platform permits, driving total capacity above 1TB. The 32GB dual‑rank x4 build and CL22 latency offer strong interleaving and data integrity for high‑throughput OLTP or real‑time analytics.

High-Performance Computing (HPC)
HPC feeds on memory bandwidth. Install one 32GB RDIMM in every available channel to sustain peak 3200MT/s data rates for simulation, modeling, or rendering. This balanced, one‑DIMM‑per‑channel scheme avoids rank‑mixing penalties and keeps latency low. Scale horizontally by adding identical modules only when additional channels are available.

Verified Compatibility

Rigorously tested for servers: Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.

FAQ