General

Engineer's Note

This 64GB DDR4-3200 Registered ECC RDIMM is server-grade memory tailored for enterprise platforms handling virtualization, in-memory databases, and other mission-critical workloads where data integrity is non-negotiable. Its dual-rank organization maximizes memory density per channel, while the registered signal buffering stabilizes multi-DIMM configurations and integrated ECC delivers single-bit error correction to prevent silent data corruption in 24/7 operations.

Technical Specs & Insights

1. 64GB capacity per module enables high-density server configurations, allowing more virtual machines per physical host without sacrificing memory headroom.
2. ECC protection continuously detects and corrects single-bit errors, preserving data integrity in mission-critical enterprise workloads where silent corruption is unacceptable.
3. Registered signal type buffers command and address signals, stabilizing multi-DIMM channels and ensuring reliable operation in servers fully populated with memory.
4. Dual Rank organization interleaves memory banks to boost effective bandwidth, helping sustain performance in analytics and database applications under heavy concurrent access.
5. 3200MT/s transfer rate raises throughput for memory-intensive cloud services, reducing latency spikes when processing large in-memory datasets.

Why These Specs Matter

When managing a virtualized server cluster, the M393A8G40CB4-CWECO RDIMM directly shields your workloads from silent data corruption. Its ECC technology actively detects and corrects single-bit errors caused by background radiation—a critical safeguard when a flipped bit in a hypervisor’s memory can crash dozens of production VMs. For in-memory databases like SAP HANA or Redis, this module’s 64GB capacity and dual-rank architecture deliver the bandwidth density essential for real-time analytics. The registered buffer stabilizes signal integrity across fully populated memory channels, eliminating boot failures and random lockups that plague unbuffered DIMMs under heavy load. With a 3200MT/s data rate and CL22 latency, concurrent query throughput remains predictable even as dataset sizes surge. In both scenarios, you gain more than specifications—the ECC and registered design translate directly into reduced downtime, consistent latency, and the confidence to consolidate mission-critical services onto fewer, highly reliable nodes.

Endurance & Reliability

General Virtualization
For a typical hypervisor hosting multiple VMs, balance core-count to memory ratio at 4–8 GB per vCPU. A dual-socket server populated with sixteen 64 GB RDIMMs (1 TB total) comfortably supports 100+ light-to-medium VMs while leaving headroom for vMotion and failover. Distribute modules evenly across all memory channels to maximize bandwidth, and consider one spare DIMM per channel if availability is critical.

In-Memory Database
Low-latency datasets like Redis or SAP HANA demand capacity and consistency. Populate all channels with dual-rank 64 GB RDIMMs to reach 2–4 TB per node, enabling entire databases to reside in memory at full 3200 MT/s speed. Keep ranks per channel to two or fewer to avoid clock speed penalties, and pair this with persistent memory only if dataset size exceeds affordable DRAM.

High-Performance Computing
HPC workloads thrive on bandwidth, so install one DIMM per channel (1DPC) across all available memory slots to run at the rated 3200 MT/s. A configuration of eight 64 GB modules yields 512 GB in an 8-channel system, ideal for large simulation meshes or cryo-EM reconstructions. Monitor memory temperature and enable patrol scrub on ECC to guard against silent data corruption during multi-day runs.

Verified Compatibility

Rigorously tested for seamless compatibility with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.

FAQ