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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 | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR4-2933 registered ECC module (PC4-23400) is engineered for enterprise server platforms, utilizing a dual-rank x4 configuration to deliver high capacity density and robust signal integrity under heavy virtualization and in-memory database workloads. Its ECC and registered signal type provide critical error correction and command/address stability, while the CL21 timing at 1.2V ensures efficient, reliable operation in dense 288-pin RDIMM deployments.
1. Generous module density allows data centers to pack more memory into each server, dramatically increasing virtual machine consolidation ratios and reducing total cost of ownership through improved slot efficiency.
2. On-the-fly ECC scrubbing corrects single-bit errors and detects multi-bit faults, preserving data integrity for financial ledgers, in-memory databases, and long-running simulation jobs where silent corruption is unacceptable.
3. Registered signal buffering decouples the electrical load of high-capacity DIMMs from the memory controller, assuring stable operation across fully populated multi-rank channels in large-scale server deployments.
4. Dual-rank x4 organization interleaves memory accesses to keep server memory channels fully saturated, critical for consistent VM performance under heavy consolidation and NUMA-aware workloads.
5. Elevated per-channel bandwidth ensures that dense multi-core server processors remain fed with data, accelerating real-time analytics, virtualization overhead, and memory-bound enterprise applications without bottlenecking.
The M393A8G40AB2-CVFC0 is a 64GB DDR4-2933 Registered ECC DIMM engineered exclusively for enterprise servers. Its four defining characteristics—64GB density, ECC error correction, registered signal buffering, and dual-rank x4 organization—translate directly into hardened real-world resilience and performance, not just a list of parameters. In a virtualized cluster hosting dozens of VMs, ECC actively corrects single-bit upsets caused by background radiation, shielding your hypervisor and guest workloads from silent data corruption that would otherwise trigger unpredictable crashes. The registered buffer preserves command and address integrity even when all memory channels are fully populated, meaning you can confidently scale a single server to terabytes of RAM without trading off stability. For memory-resident databases such as SAP HANA or Redis, the massive 64GB capacity caches entire datasets in RAM, while the dual-rank design unlocks rank interleaving. The memory controller overlaps accesses to alternating ranks, dramatically boosting effective bandwidth and slashing transaction latency under heavy concurrent queries—delivering faster analytics and snappier response. In every scenario, this module keeps your data accurate, your density limitless, and your always-on business services running consistently.
General Virtualization
Populate six or eight of these 64 GB Registered ECC modules per server for a balanced 384–512 GB footprint. This density comfortably hosts dozens of mixed virtual machines with reliable uptime, and spreading modules evenly across all memory channels preserves maximum throughput.
In-Memory Database
For SAP HANA or Redis nodes, configure a two-socket system with 24 or 32 identical 64 GB RDIMMs to reach 1.5–2 TB of protected capacity. Full population using dual-rank x4 DIMMs keeps latency predictable while allowing entire datasets to sit in RAM, eliminating storage bottlenecks.
High-Performance Computing (HPC)
Adopt one DIMM per channel using eight or more modules to sustain 2933 MT/s without clock downshifts. Each node gains 512 GB of ECC bandwidth for CFD, weather modeling, or genomic analysis, where the dual-rank x4 design delivers the sustained throughput that heavily parallel routines demand.
This server-grade 64GB DDR4-2933 ECC RDIMM is rigorously tested and compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A8G40AB2-CVFC0 with other memory modules of different brands or speeds?
A: Mixing modules is not recommended, especially in server environments. Mismatched brands, speeds, or ranks can cause instability and prevent the memory from running at the rated 2933 MT/s with full ECC and Registered functionality.
Q: Is this memory compatible with my server using Intel Xeon Scalable or AMD EPYC platforms?
A: Yes, this 64GB DDR4-2933 RDIMM is compatible with systems supporting Registered ECC memory at that speed. Verify your server’s qualified vendor list (QVL) for the specific CPU generation and chipset to ensure correct operation.
Q: What is the recommended DIMM population order for optimal performance with this RDIMM?
A: Follow your server manufacturer’s guide, typically populating identical DIMMs per channel starting from the farthest slot from the CPU. Balance across memory channels and use matching ranks to ensure 2933 MT/s and full ECC capabilities.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise DDR4 ECC Registered DIMM, it adheres to JEDEC specifications at 2933 MT/s. It does not support XMP or overclocking; stability and data integrity are prioritized over performance tuning.
Q: What warranty and typical failure rate can I expect for this memory?
A: This module carries a 1-year warranty. Typical annualized failure rates for enterprise-class RDIMMs like this Samsung model are below 0.5%, ensuring high reliability under 24/7 operation within specified thermal and voltage conditions.