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| Product Type | Memory Module |
|---|---|
| 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 | Single Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 32GB DDR4-3200 RDIMM with ECC and registered signal integrity is purpose-built for server platforms, delivering rock-solid data reliability and enhanced stability for memory-intensive workloads like virtualization and in-memory databases. Its single-rank x4 organization and CL22 latency optimize command bus loading and reduce access delays, ensuring consistent performance in dense multi-DIMM configurations.
1. Registered buffer re-drives address and command signals, stabilizing multi-DIMM configurations essential for large-scale virtualization and storage servers.
2. On-die ECC corrects single-bit errors silently, preserving long-running computation integrity and preventing unplanned downtime in mission-critical services.
3. High module density maximizes virtual machine consolidation per server node, minimizing slot usage and scaling headroom for memory-hungry workloads.
4. Fast data rate elevates in-memory database and analytics throughput, reducing query latency under sustained workload spikes.
5. The x4 device organization enables advanced error correction schemes like Chipkill, while single rank architecture sustains higher clock speeds across fully populated memory channels.
When you are running a virtualized cluster hosting dozens of mission‑critical VMs, a single undetected bit‑flip in memory can corrupt data silently and cascade into costly downtime. The Samsung M393A4G40AB3‑CWEBY RDIMM prevents this with integrated ECC, which detects and corrects single‑bit errors in real time, dramatically extending your uptime and data integrity. In an in‑memory database like SAP HANA or Redis, where the entire working set lives in RAM, the registered architecture becomes essential: the on‑DIMM register buffers command and address signals, stabilizing the electrical load so you can populate all 24 or more slots with 32 GB modules without compromising signal quality. That means you can scale to terabytes of reliable memory per server, eliminating swap‑related latency spikes. Meanwhile, the DDR4‑3200 speed feeds each channel 25.6 GB/s of bandwidth, letting your virtual machines and database engines process concurrent queries without I/O stalls. The combination of single‑rank x4 organization and a 1.2 V operating voltage further reduces thermal stress and power draw in dense rack environments, helping your data center stay cool while meeting demanding SLA targets. Simply put, this module transforms memory from a potential failure point into a foundation for unshakable performance at scale.
General Virtualization
This 32GB DDR4-3200 RDIMM module, with ECC and registered signaling, is ideal for dense virtualization hosts. For moderate consolidation of 20–30 light VMs, a configuration of 6 to 8 identical modules (192–256 GB) in balanced memory channels ensures reliable overcommit and reduces the risk of memory errors under sustained load. Populate all memory channels symmetrically to maximize interleaving and bandwidth for the hypervisor.
In-Memory Database
Single-rank x4 construction and CL22 latency make this module well-suited for latency-sensitive in-memory databases like Redis or SAP HANA. Deploy 12 or more modules across all memory controllers to reach 384 GB or higher, keeping the dataset entirely in DRAM for microsecond response. The ECC protection is critical here to prevent silent data corruption during high-frequency writes and reads.
High-Performance Computing (HPC)
For HPC workloads that demand large, error-free memory bandwidth, populate each memory channel with one of these RDIMMs. A typical dual-socket server with 16 modules (512 GB total) provides both capacity and the registered buffering needed to drive many ranks stably at 3200 MT/s. This configuration supports tightly coupled parallel simulations, maintaining data integrity through ECC while saturating memory bandwidth with x4 organization.
Rigorously tested, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 V2.
Q: Can I mix this M393A4G40AB3-CWEBY with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not advised in server systems. Identical modules guarantee signal integrity and stable multi-channel performance. Dissimilar DIMMs may cause POST failures or unpredictable behavior under load.
Q: Is this memory compatible with my system?
A: This DDR4-3200 ECC RDIMM is compatible with Intel Xeon Scalable and AMD EPYC 7002/7003 platforms supporting registered memory. Always confirm your server board or OEM's QVL list for validated support.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs in balanced channels following your server's guide. Typically, fill the first slot of each memory channel (often blue or white) to enable multi-channel interleaving for best throughput.
Q: Does this module support overclocking or XMP profiles?
A: No. This JEDEC-compliant registered ECC module runs at fixed DDR4-3200 CL22 timing. It does not support overclocking or XMP, prioritizing error-correcting stability for 24/7 enterprise workloads.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. Enterprise RDIMMs exhibit very low annualized failure rates, typically under 1% in well-cooled environments. We perform extensive testing for reliability before shipping.