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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 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR4-2933 Registered ECC module is designed for enterprise server platforms, excelling in memory-intensive workloads such as virtualization, in-memory databases, and high-performance computing where data integrity and uptime are critical. Its dual-rank organization and registered signal type deliver enhanced signal integrity and memory bandwidth efficiency, while ECC protection reliably detects and corrects single-bit errors to prevent costly system crashes.
1. A 64 GB capacity per module maximizes memory density in server nodes, allowing far more virtual machines and containerized workloads to co-exist without swapping to slower storage.
2. ECC protection continuously corrects single-bit errors, safeguarding transactional databases and long-running analytics from silent data corruption that could compromise critical results.
3. The registered signal type buffers command and address lines to preserve signal integrity across populated channels, ensuring reliable operation even when all DIMM slots are fully loaded in large-scale deployments.
4. Dual rank organization interleaves internal bank accesses to keep the memory bus saturated, delivering higher sustained throughput under the simultaneous VM requests typical of consolidated cloud infrastructure.
5. Operating at 2933 MT/s, the transfer rate meets the demands of in-memory caching layers and real-time data processing, shrinking the gap between CPU requests and data delivery in temporal workloads.
When you are running a dense virtualization cluster or an in-memory database like SAP HANA, a single undetected bit flip in a memory module can corrupt an entire virtual machine state or financial transaction log. The M393A8G40MB2-CVFSM is engineered to eliminate that risk. As a Registered DDR4 RDIMM with full ECC support, it not only detects but corrects single-bit errors on the fly, directly preserving data integrity under continuous 24/7 operation. Its 64GB dual-rank design doubles the number of memory banks accessible to the memory controller, which allows the system to interleave commands more efficiently and extract measurably higher bandwidth. For you, that means consolidation ratios in VMware or KVM environments grow safely because you can populate a single server with massive, stable memory without signal degradation, thanks to the onboard register that buffers and re-drives commands. In a Redis or Memcached deployment, the dual-rank 2933 MT/s speed reduces tail latency under concurrent access, keeping response times predictable even as the dataset scales. This module is not just a capacity upgrade—it is a reliability foundation that prevents silent data corruption, maximizes throughput per channel, and enables your memory-hungry workloads to scale without compromise.
Capacity Planning Guide for 64GB DDR4-2933 RDIMM
This module is a registered ECC DDR4 DIMM, clearly intended for server platforms. Below are configuration recommendations for typical server workloads.
General Virtualization
Deploy 8 to 16 of these 64GB modules per dual-socket host to deliver 512GB – 1TB total capacity, comfortably supporting dozens of mixed-workload VMs. Distribute modules equally across all memory channels and use identical dual-rank DIMMs to maintain balanced bandwidth and predictable performance under contention.
In-Memory Database
Populate all memory channels fully to maximize capacity, often reaching 2TB or more in a 2-socket system for databases like SAP HANA or Redis. Dual-rank 64GB RDIMMs operating at 2933 MT/s provide the low-latency, high-throughput foundation required, while ECC protection ensures data integrity for transactional and analytical workloads.
High-Performance Computing (HPC)
For memory-bandwidth-bound simulations, install one DIMM per channel (1 DPC) to sustain the full 2933 MT/s speed. A typical node pairs 12 modules (768GB) for an optimal balance of capacity and per-core bandwidth. ECC reliability and registered buffering enable stable, large-scale cluster operation across long-running jobs.
Rigorously tested server memory, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.
Q: Can I mix this M393A8G40MB2-CVFSM with other memory modules of different brands or speeds?
A: Mixing different brands or speeds on the same memory channel is not recommended. This can lead to signal integrity issues and system instability with Registered ECC memory. Always install identical Samsung RDIMMs for guaranteed enterprise stability.
Q: Is this memory compatible with my system?
A: This module is compatible with servers using Intel Xeon Scalable (2nd Gen+) or AMD EPYC processors that support DDR4-2933 ECC Registered DIMMs. Please consult your motherboard's Qualified Vendor List (QVL) to confirm exact model compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server’s user manual. Typically, populate identical DIMMs per channel starting with the first slot (e.g., DIMM1). A balanced configuration across all memory channels maximizes interleaving and ensures optimal performance for ECC RDIMMs.
Q: Does this module support overclocking or XMP profiles?
A: No. This Samsung ECC Registered RDIMM adheres strictly to JEDEC DDR4-2933 (PC4-23400) standards. It does not support overclocking or XMP profiles, as the priority is data integrity for 24/7 enterprise and mission-critical workloads.
Q: What warranty and typical failure rate can I expect?
A: This authentic Samsung module comes with a 1-year warranty. Under specified environmental conditions and proper cooling, enterprise-grade RDIMMs exhibit an extremely low annualized failure rate, ensuring reliable long-term operation in server deployments.