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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 GB |
| Memory Technology | DDR4 |
| RAM Speed | 3200 MHz |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
The Samsung M393A4G43AB3-CWECQ is a 32GB DDR4-3200 Registered ECC RDIMM engineered for enterprise servers, delivering robust data integrity through error-correcting code and signal stability via its registered architecture, which is critical for virtualization and in-memory database workloads. Its dual-rank configuration enhances memory bandwidth utilization, while the 288-pin design ensures seamless compatibility with modern AMD EPYC and Intel Xeon platforms requiring high-density, reliable memory expansion.
1. 32GB capacity per module enables dense memory configurations for virtualization hosts, allowing more VMs to run concurrently without costly swapping to storage.
2. 3200 MT/s speed elevates memory bandwidth to efficiently feed multi-core server CPUs, reducing latency in large-scale database queries and in-memory analytics.
3. ECC protection autonomously corrects single-bit errors, preserving data integrity for financial transactions and mission-critical workloads where silent corruption is unacceptable.
4. Registered signal type stabilizes high-capacity memory channels by buffering command and address lines, essential for maintaining signal integrity across fully populated 24-slot servers.
5. Dual rank interleaves accesses across internal banks, sustaining higher channel utilization and throughput that directly benefits memory-intensive applications in consolidated data centers.
The Samsung M393A4G43AB3-CWECQ is a server-grade DDR4-3200 Registered DIMM, and every aspect of its design directly addresses the unforgiving demands of enterprise data centers. Its ECC technology is not a mere specification; it means that in a 24/7 virtualized cluster hosting dozens of business-critical VMs, a single-bit error caused by background radiation will be transparently detected and corrected, preventing silent data corruption that could crash a financial transaction or invalidate a machine learning checkpoint. The Registered signal buffer is equally vital: when populating a server with multiple DIMMs per channel to reach 512GB or more, the RDIMM’s register reduces electrical load on the memory controller, preserving signal integrity and making high-density configurations stable and reliable under heavy load. Meanwhile, the Dual Rank organization interleaves accesses across two internal ranks of memory banks, which directly lifts the effective bandwidth for in-memory databases like Redis or SAP HANA. Under microsecond-sensitive query storms, this parallelism allows the CPU to pipeline commands instead of stalling, translating to faster query response and higher throughput. Paired with a 3200MT/s data rate and 32GB capacity per module, you gain not just raw speed, but the confidence that a hypervisor host can seamlessly sustain hundreds of virtual desktops or process real-time analytics without compromise in data integrity, scalability, or performance.
General Virtualization
Populate memory channels symmetrically across both CPU sockets using one 32GB DIMM per channel. A baseline of eight identical modules yields 256GB, comfortably supporting dozens of virtual machines. For higher VM density, add a second DIMM per channel, though speed may drop to 2933 MT/s; prioritize 1DPC configurations to maintain 3200 MT/s throughput.
In-Memory Database
Maximize capacity by filling all available slots—24 modules provide 768GB for large in-memory datasets. Stick to one DIMM per channel to preserve low latency and full 3200 MT/s speed. These dual-rank RDIMMs deliver strong bandwidth and the ECC integrity essential for transactional or analytical databases.
High Performance Computing
Install 16 modules (eight per socket, one per channel) to achieve 512GB with peak memory bandwidth for parallel workloads. Dual-rank construction at DDR4-3200 ensures high data rates for simulation and modeling. Always use identical, server-validated modules to guarantee stability across long-running compute jobs.
Rigorously tested server memory, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.
Q: Can I mix this M393A4G43AB3-CWECQ with other memory modules of different brands or speeds?
A: Mixing modules of different brands or speeds is not recommended for servers. To ensure signal integrity and system stability, populate all channels with identical Samsung ECC RDIMMs matching this 3200MT/s, Dual Rank specification.
Q: Is this memory compatible with my system?
A: This 288-pin DDR4-3200 ECC Registered DIMM is designed for Intel and AMD server platforms that support RDIMM technology. Verify your motherboard’s Qualified Vendor List to guarantee full compatibility with the M393A4G43AB3 part number.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server board manual, typically populating identical Dual Rank 32GB RDIMMs in symmetric slots first—such as one DIMM per channel in blue slots—to balance memory interleaving and maximize bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No, this server-grade ECC RDIMM adheres strictly to JEDEC DDR4-3200 (PC4-25600) standards with a fixed CL22 latency. It does not support XMP profiles or any form of performance overclocking.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module carries a 1-year warranty. Enterprise ECC RDIMMs demonstrate an extremely low annualized failure rate, typically below 0.1%, ensuring exceptional reliability in 24/7 data center environments.