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Trade Assurance
| Compliance Standards | EU RoHS,FCC |
|---|---|
| Product Type | Memory Module |
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 2133 MHz |
| RAM Standard | DDR4-2133/PC4-17000 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL15 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR4-2133 Registered ECC RDIMM, with its quad-rank x4 organization and CL15 latency, is engineered for enterprise server platforms handling memory-intensive workloads like virtualization and in-memory databases where data integrity is paramount. The registered signal type and ECC error correction ensure robust signal stability and end-to-end data protection in high-density, multi-DIMM configurations.
1. A massive 64GB capacity per module maximizes memory density in server nodes, enabling higher VM counts without sacrificing performance.
2. Hardware-level error correction detects and fixes single-bit data corruption, essential for financial transactions and long-running computational tasks.
3. The registered buffer stabilizes high-capacity configurations by reducing electrical load on the memory controller, improving signal integrity across fully populated server boards.
4. Quad Rank x4 organization leverages bank interleaving to sustain throughput under heavy concurrent access, accelerating virtualized database response.
5. CL15 latency ensures fast column access timing, cutting database query delays and improving the responsiveness of latency-sensitive enterprise applications.
With a 64GB capacity, DDR4-2133 speed, and a Registered ECC architecture, the Samsung M386A8K40BMB-CPB is unmistakably a server-grade RDIMM built for mission-critical enterprise workloads. Its four defining characteristics directly answer the pain points of data center operators.
First, Error Correction Code (ECC) actively detects and corrects single-bit memory errors caused by cosmic radiation or electromagnetic interference. In an in-memory database like SAP HANA, a flipped bit without ECC can silently corrupt financial records—ECC eliminates that risk, ensuring computational integrity around the clock. Second, the Registered signal buffer stabilizes the command and address lines when populating all 24 DIMM slots on a dual-socket server. This means you can run a dense virtualization cluster hosting 200+ virtual machines without signal degradation or unexpected reboots at 3 a.m. Third, the Quad Rank x4 organization delivers deep interleaving, improving bandwidth utilization so your hypervisor can service simultaneous live migrations and storage I/O without latency spikes. Finally, the 64GB density per stick, operating at just 1.2V, maximizes memory per channel while keeping thermal load manageable. You can assign entire 512GB namespaces to a single large-model AI inference container, all while maintaining energy efficiency. In short, this module transforms raw specifications into real-world resilience, scalability, and data trust.
Server Memory Capacity Planning Guide
This 64GB DDR4-2133 Registered ECC RDIMM (quad rank, CL15, 1.2V) is designed for enterprise servers requiring data integrity and large memory footprints. Below are capacity and configuration recommendations for typical workload scenarios.
General Virtualization
A dual-socket server with 8 to 12 such modules (512GB–768GB total) comfortably hosts 50+ moderate virtual machines. Populate all memory channels symmetrically, balancing quad-rank DIMMs across identical memory banks to maintain uniform latency and maximize throughput for live migration and resource overcommitment.
In-Memory Database
For Redis or SAP HANA workloads, deploy 16 modules (1TB) across two processors, enabling the entire dataset to reside in RAM. Use a balanced 2 DIMMs per channel (2DPC) configuration at 2133 MT/s to preserve signal integrity, and set the BIOS to maximum performance mode with ECC scrubbing enabled to ensure sub-millisecond query response.
High-Performance Computing
HPC clusters benefit from 8 modules (512GB) per node, paired with a fabric-oriented CPU. Install one DIMM per channel (1DPC) for the highest stable frequency, then tune the memory interleaving policy to “NUMA-aware” to minimize remote access overhead during MPI-parallel simulations and large-scale fluid dynamics computations.
Rigorously tested server memory, works with Dell PowerEdge R740, HPE ProLiant DL380 Gen9, Lenovo ThinkSystem SR650, and more.
Q: Can I mix this M386A8K40BMB-CPB with other memory modules of different brands or speeds?
A: Mixing with different brands or speeds is not recommended on server platforms. It may cause stability issues and disable ECC. For consistent performance, populate with identical Samsung modules.
Q: Is this memory compatible with my system?
A: This module is designed for servers supporting DDR4-2133 Registered ECC RDIMMs. It is compatible with Intel Xeon E5-2600 v3/v4 and AMD EPYC 7001 series platforms. Please verify your board's QVL.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical Quad Rank modules per channel starting with the farthest slot from the CPU. Typically, fill blue slots first for balanced interleaving. Consult your server's manual for exact numbering.
Q: Does this module support overclocking or XMP profiles?
A: No, this is a JEDEC-standard server RDIMM. It does not support XMP or overclocking. It runs strictly at the specified 2133 MT/s with CL15 timings to ensure data integrity.
Q: What warranty and typical failure rate can I expect?
A: This module carries a 1-year warranty. Enterprise-grade components maintain an extremely low failure rate, typically less than 0.2% annually under proper cooling and within voltage specifications.