General

Engineer's Note

This 64GB DDR4-2400 Registered ECC RDIMM is engineered for enterprise-class servers and memory-intensive workloads such as virtualization and in-memory databases, where consistent data integrity and high availability are non-negotiable. Its quad-rank x4 design maximizes capacity density per channel, while the registered signal buffering and integrated ECC ensure rock-solid signal stability and automatic single-bit error correction across multi-DIMM configurations.

Technical Specs & Insights

1. 64GB capacity per module enables dense memory configurations in servers, allowing more virtual machines per physical host without sacrificing performance.
2. ECC error correction safeguards data integrity by detecting and correcting single-bit errors, preventing silent data corruption in mission-critical database workloads.
3. Registered signal buffering stabilizes high-capacity memory arrays, essential for maintaining signal integrity in servers with fully populated DIMM slots.
4. DDR4-2400 frequency delivers a balanced 19.2 GB/s bandwidth per channel, providing ample throughput for analytics and web-scale applications.
5. Quad Rank x4 design maximizes memory density per channel, supporting massive in-memory datasets vital for big data processing and virtualization.

Why These Specs Matter

When powering virtualization clusters or in-memory databases like SAP HANA, the M386A8K40BM1-CRC5Q 64GB DDR4-2400 RDIMM directly resolves your most critical reliability and capacity headaches. Its ECC technology actively scrubs single-bit errors, preventing silent data corruption that could crash entire application fleets—a non-negotiable safeguard for transactional integrity around the clock. The registered buffer stabilizes command and address signals as you fully populate every channel, ensuring multi-terabyte memory pools remain rock-solid under heavy VM densities without signal degradation. Its Quad Rank x4 organization leverages bank interleaving to elevate effective bandwidth and reduce latency, giving real-time analytics and high-concurrency database queries a measurable speed boost. Finally, the dense 64GB capacity per module maximizes your server’s memory footprint while leaving slots free for seamless expansion, and the 1.2V operation cuts power consumption across your racks, tangibly lowering total cost of ownership. This translates directly into higher uptime and smarter resource utilization for your data center.

Endurance & Reliability

Server Memory Identified
This is a 64GB DDR4-2400 ECC Registered RDIMM (quad rank, x4, CL17). Designed for enterprise servers, it prioritises data integrity and large capacity over low latency.

General Virtualization
Populate all memory channels symmetrically to maximise bandwidth. A dual-socket server can be configured with eight of these 64GB RDIMMs (one per channel) for 512GB total, comfortably hosting dozens of mixed-workload VMs while leaving room for scale-out. Avoid mixing quad-rank modules with other ranks on the same channel to prevent speed downgrades.

In-Memory Database
Capacity is paramount, so fully populate each memory channel with two of these 64GB modules for 1TB per socket using 16 DIMMs. Enable memory interleaving in the BIOS to balance access latency, and verify that the NUMA configuration aligns with the database’s memory allocation policies to keep data local to the processing cores.

High-Performance Computing
Often, memory bandwidth is more critical than raw capacity. Install one DIMM per channel (eight modules for 512GB on a typical dual-socket board) to maintain the highest supported 2400MT/s speed without clock throttling from multi-rank loading. Distribute the modules evenly across sockets to optimise parallel memory access for tightly coupled MPI jobs.

Verified Compatibility

This memory is rigorously tested for server compatibility: Dell PowerEdge R740, HPE DL380 Gen10, Lenovo SR650, Supermicro X11 systems.

FAQ