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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 3200 MHz |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This is a server-class DDR4-3200 Registered DIMM with ECC, designed for rigorous enterprise environments where data integrity is paramount. The dual-rank x4 organization and registered signaling enable high-capacity memory configurations with reduced electrical loading on the memory bus, making it ideal for virtualization clusters and in-memory databases that demand both density and stability.
1. Each 64GB module triples the memory footprint per slot, enabling dense virtualization and large in-memory databases without sacrificing server real estate.
2. Integrated ECC continuously corrects single-bit errors and detects multi-bit faults, preventing silent data corruption in mission-critical financial or healthcare workloads.
3. Registered DIMM architecture buffers command and address signals, stabilizing signal integrity across fully populated 24-slot servers and ensuring consistent uptime under heavy load.
4. 3200 MT/s DDR4 throughput accelerates data-intensive transactions and reduces latency in virtualized environments, directly improving response times for concurrent users.
5. Dual Rank x4 organization leverages bank interleaving to sustain high bandwidth utilization, essential for maintaining predictable performance in content delivery and AI inference nodes.
The M393A8G40AB2-CWECO is a 64GB DDR4-3200 Registered ECC RDIMM, engineered exclusively for server environments where every bit of data integrity and every clock cycle count. In dense virtualization clusters, its 64GB capacity allows you to host significantly more VMs per physical node, directly reducing server sprawl, power draw, and hypervisor licensing costs while leaving headroom for memory ballooning and failover resources. ECC error correction works silently in the background to detect and correct single-bit errors caused by cosmic radiation or electrical noise; for financial trading platforms or transactional databases, this is the difference between a trusted ledger and silent data corruption that could propagate into catastrophic financial or compliance failures. The Registered buffer isolates the command and address lines from the memory controller, preserving crisp signal integrity when all DIMM slots are populated. This is what lets you scale to terabyte-level memory footprints in a single chassis for memory databases like SAP HANA or large-scale virtual desktop infrastructure, without suffering stability issues from electrical loading. Finally, the 3200MT/s speed combined with Dual Rank x4 organization leverages bank interleaving to keep the memory pipeline saturated, delivering the sustained bandwidth your real-time analytics, AI inference, or massive caching layers demand. For any data center focused on uptime, scalable performance, and data fidelity, this module translates directly into a tangible operational advantage.
General Virtualization
For a typical hypervisor host running mixed VM workloads, populate the server with a balanced number of 64 GB RDIMMs to maximize memory channels. Aim for one DIMM per channel (1DPC) using 8 or 16 modules to achieve 512 GB or 1 TB total capacity, preserving 3200 MT/s speed while providing ample headroom for memory overcommitment.
In-Memory Database
In-memory databases demand large, contiguous capacity and high reliability. Deploy a fully populated configuration across all memory channels, typically 12 or 24 identical 64 GB Dual Rank x4 RDIMMs for 768 GB or 1.5 TB, ensuring the ECC and registered buffering handle high data integrity loads. Keep population balanced to avoid NUMA penalties and schedule spare modules for immediate replacement.
High-Performance Computing (HPC)
HPC clusters require both capacity and sustained bandwidth under heavy parallel I/O. Configure each node with one 64 GB RDIMM per channel (1DPC) to achieve maximum rated speed of DDR4-3200 and minimize latency. For memory-bound simulations, scale up to 12 or 16 modules per 2-socket server, delivering 768 GB to 1 TB while preserving dual-rank x4 interleaving benefits for throughput-sensitive workloads.
Rigorously tested for servers, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M393A8G40AB2-CWECO with other memory modules of different brands or speeds?
A: Mixing Registered ECC modules from different brands or speeds is not recommended. Variations in timing, rank, or firmware can cause instability. For server environments, always install identical part numbers for reliable, validated operation.
Q: Is this memory compatible with my system?
A: This RDIMM is designed for servers with Intel Xeon Scalable or AMD EPYC platforms supporting DDR4-3200 Registered ECC memory. Verify your motherboard's memory QVL and ensure BIOS support for 64GB Dual Rank x4 modules.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server board’s manual, typically populating identical modules per channel starting from the farthest slot from the CPU. For dual-socket systems, balance memory across all memory controllers to maximize bandwidth and NUMA efficiency.
Q: Does this module support overclocking or XMP profiles?
A: No. As a JEDEC-compliant server RDIMM, it operates at fixed CL22 timings and does not support overclocking or XMP. Stability and data integrity are prioritized through strictly validated frequency and voltage parameters.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. As an enterprise-grade Samsung RDIMM, it exhibits a very low annualized failure rate (AFR), typically under 0.2%, backed by rigorous screening and burn-in testing.