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| Product Type | Memory Module |
|---|---|
| Compliance Standards | |
| Memory Capacity | 32 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 |
Designed for server platforms, this Samsung 32GB DDR4-3200 RDIMM (M393A4K40EB3-CWEGY) delivers the data integrity essential for virtualization and in-memory databases through its ECC and registered signal architecture. Its dual-rank x4 configuration optimizes memory bandwidth and capacity per channel, while the CL22 latency ensures responsive performance under sustained enterprise workloads.
1. High per-module capacity enables dense memory configurations, empowering virtualization hosts to run more simultaneous workloads without memory bottlenecks.
2. Supporting advanced error correction, the module detects and corrects single-bit errors, safeguarding long-running enterprise applications from silent data corruption.
3. Registered signal architecture stabilizes signal integrity across fully populated server channels, ensuring reliable operation under maximum memory loads.
4. Dual-rank organization interleaves memory access across internal banks, improving sustained bandwidth and lowering latency for data-intensive analytics.
5. Fast data transfer speed accelerates in-memory processing, reducing response times for database queries and real-time financial transactions.
The Samsung M393A4K40EB3-CWEGY is a 32GB DDR4-3200 Registered DIMM, purpose-built for enterprise servers. Its defining characteristics translate directly into business continuity and performance for virtualized infrastructure and in-memory databases, where downtime or latency is measured in lost revenue.
In a dense virtualization cluster, this module’s Registered architecture and dual-rank x4 design are lifesavers. The on-DIMM register buffers address and command signals, enabling a single server to support massive 512GB or 1TB configurations across dozens of virtual machines without signal degradation. Dual-rank interleaving further amplifies memory bandwidth per channel, so hypervisors like VMware or KVM can serve more vCPUs simultaneously without I/O stutter — critical when a single host runs both your CRM and payroll workloads.
For an in-memory database like SAP HANA or Redis, the 3200MT/s speed and ECC are non-negotiable. At 25.6 GB/s bandwidth, large datasets load and query faster, shrinking transaction response times. Meanwhile, ECC silently corrects single-bit errors caused by cosmic radiation or electrical noise — a flipped bit in a financial ledger or patient record could otherwise corrupt the dataset without warning. With this RDIMM, your data integrity remains ironclad under 24/7 operation, giving you a foundation where accuracy and uptime are never compromised.
General Virtualization
For a typical VMware vSphere or Hyper-V host running 10–15 mixed VMs, we recommend deploying six to eight of these 32 GB RDIMMs across dual-socket platforms to reach 192–256 GB total capacity. This populates one DIMM per channel in a balanced six-channel or eight-channel configuration, preserving memory bandwidth while offering 20%–30% headroom for burst workloads. Matching modules per CPU socket maintains NUMA affinity and avoids performance penalties.
In-Memory Database
SAP HANA or Redis clusters demand large, contiguous memory pools with low latency. Install twelve modules (384 GB) per dual-socket server to leverage all memory channels in a 2 DIMMs-per-channel arrangement, yielding maximum bandwidth. The registered ECC design and dual-rank x4 organization ensure signal integrity at full population, enabling stable operation under the sustained 100% memory utilization typical of in-memory analytics.
High-Performance Computing
For HPC workloads like computational fluid dynamics or genomic sequencing, memory bandwidth often becomes the limiting factor. Populate one 32 GB RDIMM per channel across both sockets (typically eight modules for 256 GB) to deliver the spec’s full 3200 MT/s data rate. Avoid mixing dual-rank and single-rank DIMMs; the dual-rank nature improves bandwidth efficiency, and the slight latency increase (CL22) is negligible compared to the throughput gains in massively parallel jobs.
Rigorously tested server memory, compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M393A4K40EB3-CWEGY with other memory modules of different brands or speeds?
A: Mixing Registered ECC memory with different brands or speeds is strongly discouraged. It can lead to instability, force all modules to the slowest common speed, and may disable critical ECC error correction.
Q: Is this memory compatible with my system?
A: This 32GB DDR4-3200 RDIMM is compatible with Intel Xeon Scalable (Cascade Lake/Ice Lake) and AMD EPYC 7002/7003 platforms. Verify your server board supports 288-pin 1.2V Registered ECC memory.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate identical DIMMs symmetrically across all memory channels per CPU. Consult your server board manual; typical order is slots 1, 3, 5, 7 to enable balanced interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No, this Samsung RDIMM operates at JEDEC standard DDR4-3200 CL22. It does not support overclocking or XMP profiles, as it is built for enterprise stability and data integrity, not enthusiast tuning.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. As a genuine Samsung server memory, it is designed for high reliability with an annualized failure rate typically under 0.2% in well-maintained enterprise environments.