General

Engineer's Note

Designed for enterprise servers and workstations, this 32GB DDR4-2933 Registered ECC RDIMM delivers uncompromising data integrity for virtualization, in-memory databases, and mission-critical workloads. Its dual-rank x4 configuration and registered signal architecture maximize per-channel capacity and electrical stability, ensuring reliable 24/7 operation even in fully populated systems.

Technical Specs & Insights

1. Ample module capacity allows hosting more virtual machines and memory-heavy applications per server, maximizing consolidation ratios without compromising performance.
2. ECC protection corrects single-bit errors on the fly, ensuring data integrity for critical financial transactions and long-running analytics jobs.
3. Registered signal architecture stabilizes command and address lines across fully populated memory channels, essential for maintaining reliability in dense multi-slot server platforms.
4. Dual Rank x4 organization interleaves banks to keep memory channels saturated, delivering consistent low-latency bandwidth under heavy consolidation workloads.
5. High memory speed provides the data throughput demanded by modern multi-core processors, accelerating database queries and real-time data streaming.

Why These Specs Matter

The M393A4K40DB2-CVFBY is a 32GB DDR4-2933 Registered ECC RDIMM, purpose‑built for enterprise servers where unplanned downtime is simply not an option. In dense virtualization clusters, its ECC technology actively corrects single‑bit memory errors caused by background radiation, preventing silent data corruption that could crash multiple virtual machines overnight. The Registered buffer decouples the memory control signals from the CPU, enabling the use of four or more modules per channel without sacrificing signal integrity. This means you can populate all 24 DIMM slots of a dual‑socket server to hit 768GB of RAM, confidently scaling VDI sessions or container hosts without random lock‑ups. The Dual Rank x4 organization further interleaves memory banks, boosting bandwidth under heavy concurrent access. For an in‑memory database like Redis or SAP HANA, that directly translates into higher transaction throughput and consistently low latency, even during peak load when every microsecond of response time impacts revenue. Combined with the 1.2V low‑power design that reduces thermal stress inside crowded racks, this module delivers the rock‑solid stability and predictable performance your mission‑critical workloads demand.

Endurance & Reliability

General Virtualization
For general virtualization, fill all memory channels with identical 32GB DDR4-2933 RDIMMs to maximize bandwidth and satisfy the aggregated memory demands of multiple VMs. A balanced configuration often uses one DIMM per channel (e.g., 6 or 8 modules for 192GB or 256GB total), ensuring predictable performance and room for scale-out.

In-Memory Database
In-memory databases require both high capacity and uncompromising data integrity. Populate every channel with dual-rank 32GB ECC RDIMMs, and consider two DIMMs per channel (2DPC) to achieve large capacities such as 512GB or 1TB per server. The registered ECC design protects against single-bit errors, critical for transactional consistency.

High-Performance Computing (HPC)
HPC workloads are extremely sensitive to memory bandwidth. To avoid speed degradation, use one 32GB RDIMM per channel at the full 2933MT/s, leveraging the dual-rank design for extra rank interleaving. This approach delivers maximum throughput for parallel numerical simulations while keeping total node capacity sufficient for medium-to-large problem sets.

Verified Compatibility

Rigorously tested and validated for Dell PowerEdge R750/R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.

FAQ