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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 64GB DDR4-3200 registered ECC module (M393A8G40BB4-CWECO) is engineered for enterprise servers and workstations, where its Dual Rank x4 organization paired with ECC and registered signaling delivers exceptional data integrity and signal stability for memory-intensive workloads like virtualization and in-memory databases. Operating at 1.2V with a CAS latency of 22, it ensures reliable 3200MT/s throughput under sustained load, making it the ideal foundation for scaling up mission-critical 24/7 operations.
1. 64GB capacity per module packs more memory into each server slot, directly raising virtual machine density and enabling larger in-memory datasets without sacrificing host performance.
2. 3200 MT/s data rate delivers the elevated memory bandwidth that keeps real-time analytics, transactional databases, and virtualized workloads moving without throughput bottlenecks.
3. ECC protection silently corrects single-bit memory errors, safeguarding sensitive enterprise data and preventing undetected corruption in always-on mission-critical servers.
4. Registered signal type uses an on-DIMM buffer to preserve signal integrity at scale, allowing fully loaded server platforms to run stably across dozens of DIMMs under relentless 24/7 operation.
5. Dual Rank x4 organization interleaves internal bank accesses to saturate the memory channel, maximizing effective throughput when multiple virtual machines compete for shared memory resources.
M393A8G40BB4-CWECO is a 64GB DDR4-3200 RDIMM with ECC, designed for server environments where data integrity, capacity, and bandwidth are critical. Its ECC corrects single-bit errors—in a virtualized cluster, this prevents silent data corruption that could crash VMs or taint transactional databases. The registered buffer preserves signal quality across fully loaded memory channels, allowing you to install massive RAM for consolidation without risking stability. The 64GB density lets you reach large footprints with fewer modules, saving power and slot real estate. Its dual-rank x4 organization interleaves accesses, and together with 3200MT/s speed, it boosts throughput for in-memory databases like SAP HANA, delivering faster analytics, while in VMware farms, each guest OS experiences lower latency under load. By combining ECC protection, registered reliability, high density, and dual-rank bandwidth, it directly addresses the top concerns of IT architects managing virtualized infrastructure and real-time analytics platforms.
General Virtualization
For multi-tenant virtualization hosts, install identical 64GB RDIMMs across all memory channels to ensure uniform NUMA access and reliable failover. Target two DIMMs per channel (2DPC) for optimal density—equipping a dual-processor server with sixteen modules yields 1TB, comfortably supporting over 100 typical VMs while preserving DDR4-3200 speed in many platforms. Monitor capacity headroom to scale without swapping.
In-Memory Database
Latency-critical databases require maximum speed and predictable performance. Populate one DIMM per channel (1DPC) to sustain the full 3200MT/s data rate and low CL22 latency, avoiding rank penalty slowdowns. Using twelve 64GB modules per processor provides 768GB per socket, enabling large in-memory datasets like SAP HANA or Redis to operate with high throughput and fault tolerance.
High-Performance Computing (HPC)
HPC applications demand peak memory bandwidth; configure one module per channel to avoid frequency down-clocking, keeping the memory bus at the rated 3200MT/s. For a dual-socket node, eight modules per socket (512GB total) strike a balance between capacity and sustained bandwidth for simulation, CFD, and weather modeling workloads. Symmetric population also simplifies cluster management.
Rigorously tested for compatibility: Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M393A8G40BB4-CWECO with other memory modules of different brands or speeds?
A: Mixing this 64GB DDR4 ECC Registered RDIMM with modules of different brands or speeds is strongly discouraged. Mismatched specifications can cause boot failures, instability, and compromise ECC protection. Always populate servers with identical, validated DIMMs.
Q: Is this memory compatible with my system?
A: This 64GB DDR4-3200 ECC RDIMM (PC4-25600) is designed for server platforms like Intel Xeon Scalable and AMD EPYC 7002/7003 series. Verify your motherboard or OEM server's memory QVL and support for dual-rank x4 registered DIMMs to ensure compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Refer to your server motherboard manual; typically populate the slots farthest from the CPU first per channel. For dual-rank RDIMMs, install in balanced configurations across all memory channels to maximize bandwidth and ensure proper memory interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No, this is a JEDEC-compliant server-grade RDIMM operating at a fixed 3200MT/s with CL22 latency. It does not support XMP profiles or overclocking, as ECC Registered memory prioritizes data integrity and long-term stability in enterprise environments.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module is covered by a 1-year warranty. Enterprise RDIMMs like this exhibit very low annualized failure rates, typically well below 0.5%. We thoroughly test each unit and offer replacement support should any premature issue occur.