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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 2933 MHz |
| RAM Standard | DDR4-2933/PC4-23400 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL21 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Designed for enterprise server platforms, this 64GB DDR4-2933 Registered ECC RDIMM leverages a Quad Rank x4 configuration to deliver exceptional memory density per channel, making it ideal for virtualization, in-memory databases, and heavy transactional workloads. The Registered signal type combined with ECC ensures robust signal integrity and data reliability at scale, minimizing downtime in mission-critical deployments.
1. 64 GB capacity per module allows densely packed servers to host more virtual machines within limited DIMM slots, directly reducing total cost of ownership in cloud data centers.
2. ECC protection detects and corrects single-bit errors in real time, preserving data integrity for transaction processing and long-running analytic workloads that cannot tolerate silent corruption.
3. Registered signal buffering ensures clean command and address delivery across fully populated banks, maintaining stability when scaling a single node to multi-terabyte memory configurations.
4. 2933 MT/s throughput provides the necessary memory bandwidth to feed high-core-count CPUs, accelerating parallel database queries and in-memory caching under heavy load.
5. Quad Rank x4 organization enables rank-level interleaving that increases effective bandwidth utilization, maximizing performance for consolidated enterprise applications without compromising channel reliability.
The Samsung M386A8K40DM2-CVFB0 is a server-grade DDR4 RDIMM engineered for mission-critical enterprise workloads where data integrity and uptime are non-negotiable. Its four defining characteristics—ECC error correction, registered signal buffering, a massive 64GB capacity, and quad rank x4 organization—directly translate into tangible operational resilience and performance. In a dense virtualization cluster hosting dozens of VMs, silent data corruption is a real threat; a single bit flip in a hypervisor’s memory space can crash an entire host. The module’s ECC actively detects and corrects single-bit errors, preserving transactional consistency without downtime. Simultaneously, the register on the RDIMM buffers command and address signals, stabilizing the memory bus when multiple high-capacity DIMMs populate a server, which is essential for scaling to 512GB or more without signal degradation. The 64GB density and quad rank design excel in memory databases like SAP HANA or Redis. The four independent ranks enable rank interleaving, allowing the memory controller to initiate parallel access streams and significantly reduce latency during in-memory analytics. For an IT manager, this means consolidated workloads run on fewer servers with unwavering reliability, shrinking the data center footprint while accelerating real-time insights.
General Virtualization
For dense VM hosting, deploy at least four 64GB RDIMMs across all memory channels—typically one module per channel on dual-socket systems—to maximize capacity and interleaved bandwidth. This 256GB footprint supports high consolidation ratios while ECC guarantees data integrity under sustained multi-tenant loads.
In-Memory Database
Maximize total capacity by fully populating every channel with these 64GB quad-rank modules, reaching 512GB or more per server. The registered ECC design ensures the fault tolerance required by Redis, SAP HANA, or similar latency-sensitive stores; if the platform supports it, enable memory mirroring for additional resilience on mission-critical datasets.
High-Performance Computing
Balance capacity with peak bandwidth by installing six or eight modules in a symmetrical configuration (one per channel). Quad-rank DIMMs at DDR4-2933 deliver robust throughput for simulation and modeling; however, verify platform guidelines, as fully loaded channels may clock down to 2666 MT/s, slightly trading speed for the massive memory footprint HPC workloads demand.
Rigorously tested server memory, compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.
Q: Can I mix this M386A8K40DM2-CVFB0 with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not recommended for RDIMMs. It may cause instability or forced speed downgrades. For optimal 2933MT/s ECC performance, install identical modules exclusively.
Q: Is this memory compatible with my system?
A: This DDR4-2933 ECC Registered DIMM is designed for Intel Xeon Scalable and AMD EPYC platforms. Please verify your server board’s QVL to confirm support for 64GB Quad Rank x4 RDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server motherboard’s population guide, typically filling identical channels first. For this Quad Rank module, populate evenly across memory channels to maintain full 2933MT/s speed.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant ECC Registered DIMM built for 24/7 enterprise reliability. It does not support XMP, overclocking, or non-standard voltage adjustments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. Enterprise-class DDR4 ECC RDIMMs exhibit exceedingly low failure rates, typically with an AFR below 0.5% in properly cooled server environments.