General

Engineer's Note

This 64GB DDR4-2933 Registered ECC module is engineered for dual-socket server platforms, delivering the data integrity and reliability essential for virtualization clusters and in-memory databases. Its Quad Rank x4 organization with CL21 latency maximizes memory density per channel while Registered signaling ensures stable operation under heavy, multi-DIMM workloads.

Technical Specs & Insights

1. High memory capacity scales virtual machine density per node, directly lowering total cost of ownership in large-scale private cloud deployments.
2. ECC protection eliminates silent data corruption, safeguarding transactional integrity for financial and healthcare databases.
3. Registered clock driver ensures command and address signal robustness, enabling stable operation across fully loaded memory channels.
4. Quad Rank x4 configuration fully populates the memory bus, sustaining peak bandwidth under concurrent heavy query workloads.
5. Elevated DDR4 transfer rate accelerates in-memory analytical processing, shrinking query times for real-time business intelligence.

Why These Specs Matter

Based on its RDIMM genre, ECC error correction, Registered signal type, and Quad Rank x4 organization, the M386A8K40CM2-CVFCQ is unequivocally a server-grade memory module, purpose-built for enterprise workloads where data integrity and sheer capacity are non-negotiable. In a dense virtualization cluster running dozens of VMs, this 64GB DDR4-2933 stick is a strategic asset. The Registered buffer stabilizes the command bus, allowing you to populate all channels with high-capacity Quad Rank DIMMs without compromising signal integrity or scaling headroom—meaning your hypervisor can confidently support expanding VM fleets without memory-induced instability. Simultaneously, the integrated ECC actively corrects single-bit errors caused by cosmic radiation or electrical noise, a silent guardian that prevents silent data corruption from cascading into a corrupted database transaction or a halted financial operation. For an in-memory database like SAP HANA, the combination of 2933 MT/s bandwidth and the dense 64GB capacity ensures that massive analytical datasets remain hot and near the CPU, turning hours-long batch processing into real-time insights. The CL21 latency is carefully balanced for consistent, predictable performance under the sustained, parallel access patterns typical of server DIMMs. Every attribute—from the 1.2V low-power operation to the 288-pin enterprise form factor—converges to deliver the unwavering uptime and data reliability your critical infrastructure demands.

Endurance & Reliability

General Virtualization
This 64GB DDR4-2933 Registered ECC RDIMM is ideal for dense virtualization hosts. A dual-socket server populated with 8 or 16 of these modules can comfortably support 100+ medium-sized VMs, with 256GB to 512GB total memory per node. The ECC protection guards against single-bit errors in multi-tenant environments, while Registered signaling maintains signal integrity across high-capacity memory channels.

In-Memory Database
For in-memory databases like Redis, SAP HANA or Memcached, this quad-rank module delivers low-latency access and high reliability. Deploying 8 to 24 modules per node (512GB–1.5TB) allows entire datasets to reside in RAM, maximizing throughput. ECC is critical here to prevent silent data corruption in transactional workloads, and the 2933MT/s speed reduces cache-miss penalties on large working sets.

High-Performance Computing
HPC clusters running simulation, weather modeling or genomic analysis require massive, resilient memory pools. This 64GB RDIMM scales seamlessly to over 2TB per node when all 24 DIMM slots are filled. Quad-rank x4 organization provides high density per channel without sacrificing ECC coverage, enabling sustained floating-point throughput and minimizing node failure rates during extended compute jobs.

Verified Compatibility

Server memory rigorously tested for Dell PowerEdge R750, HPE ProLiant DL380 Gen10, and Lenovo ThinkSystem SR650.

FAQ