General

Engineer's Note

Designed for enterprise servers, this 64GB DDR4-2933 Registered ECC module excels in virtualization and in-memory database workloads where data integrity and uptime are paramount. Its Quad Rank x4 organization and registered signal architecture maximize capacity density on a single channel while the ECC engine reliably corrects single-bit errors, ensuring stable operation under heavy load.

Technical Specs & Insights

1. A 64GB capacity per module allows dense memory configurations, enabling more virtual machines per server without sacrificing performance under heavy consolidation workloads.
2. DDR4 technology delivers improved energy efficiency over previous generations, lowering data center power consumption while maintaining high throughput.
3. The 2933 MT/s data rate elevates memory bandwidth to feed multi-core processors, reducing bottlenecks in real-time analytics and in-memory databases.
4. ECC protection automatically corrects single-bit errors and detects multi-bit faults, preserving data integrity in mission-critical enterprise applications and preventing silent corruption.
5. Registered signal type with Quad Rank x4 organization decouples the command and address bus from the DRAM load, ensuring stable operation when populating all channels with high-capacity DIMMs in scale-out server deployments.

Why These Specs Matter

The Samsung M386A8K40CM2-CVFB0 is a 64GB DDR4-2933 RDIMM purpose-built for enterprise servers, and its four defining characteristics directly address the daily realities of data center operators. The first is ECC, which corrects single-bit errors before they cascade into silent data corruption. In a 24/7 virtualization cluster hosting dozens of VMs, an uncaught bit flip in a guest kernel can crash an entire node—ECC turns that risk into a non-issue, preserving uptime and data integrity. Second, the registered signal buffer enables stable operation with quad-rank x4 modules, allowing you to populate all memory channels fully without signal degradation. This means a single 2-socket server can reliably scale to terabytes of RAM for massive in-memory databases like SAP HANA or Redis, where every extra DIMM slot kept usable translates directly to faster transactions. Third, the quad-rank design interleaves accesses across internal banks, boosting bandwidth utilization under heavy write contention. In a database engine performing real-time analytics, that interleave reduces access collisions, yielding lower latency and more consistent query performance. Finally, the native 1.2V supply and 2933 MT/s transfer rate deliver energy-efficient throughput, cutting cooling overhead while the CL21 latency keeps response times tight. When you consolidate dozens of workloads or run a latency-sensitive trading platform, these four attributes combine to mean fewer failures, higher consolidation ratios, and a demonstrably better return on your infrastructure investment.

Endurance & Reliability

General Virtualization
For general virtualization hosting numerous VMs, total capacity is paramount. Deploy these 64GB registered DDR4-2933 RDIMMs with a balanced population of one DIMM per memory channel to maintain optimal access. In a dual‑socket server with eight channels per socket, eight or sixteen modules deliver 512 GB to 1 TB of ECC‑protected memory, ideal for dense consolidation while keeping hypervisor overhead low.

In-Memory Database
In‑memory databases demand massive, fault‑tolerant capacity. These quad‑rank 64GB ECC RDIMMs suit large memory pools perfectly. Populate all channels symmetrically with one DIMM per channel to avoid bandwidth penalties; for a 16‑channel platform, sixteen modules achieve 1 TB of memory, providing the low latency and error correction crucial for SAP HANA or Redis clusters.

High Performance Computing
HPC workloads require both high bandwidth and large memory footprints. Install these 2933 MT/s modules in a balanced one‑DIMM‑per‑channel configuration to maximize aggregate throughput. Although quad‑rank DIMMs may clock down on some platforms, an eight‑module setup for eight channels still yields strong bandwidth and a hefty 512 GB capacity, supporting large‑scale simulations and parallel data analysis without becoming a bottleneck.

Verified Compatibility

Validated for servers: Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 — rigorously tested.

FAQ