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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 | Unbuffered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Dual Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | UDIMM |
Designed as an unbuffered ECC UDIMM for entry-level servers and professional workstations, this 32GB DDR4-3200 module ensures data integrity with built-in error correction while its dual-rank x8 organization enhances memory interleaving for steady throughput under demanding loads. The 1.2V operating voltage and CL22 latency strike an optimal balance between power efficiency and responsive access, making it ideal for virtualization, database caching, and always-on compute environments where reliability cannot be compromised.
1. ECC automatically detects and corrects single-bit errors, safeguarding critical virtualization hosts and database servers from silent data corruption that could otherwise crash an entire business service.
2. A generous 32GB capacity per stick allows compact single‑socket servers to pack more virtual machines or containers, maximizing consolidation density without forcing an expensive chassis upgrade.
3. 3200MT/s throughput supplies sufficient memory bandwidth for real‑time analytics and in‑memory caches, helping dashboards and transaction engines return results with near‑zero waiting.
4. Dual rank organization exploits interleaving to keep the memory pipeline fed under heavy multi‑tenant workloads, preventing stutter when dozens of vCPUs compete for data simultaneously.
5. The unbuffered UDIMM design shaves off access latency within entry‑level server platforms, offering a responsive and cost‑smart foundation for edge appliances where every microsecond of service time matters.
The Samsung M391A4G43AB1-CWE is a 32GB DDR4-3200 ECC Unbuffered DIMM purpose-built for entry-level servers and workstations where data integrity is the foundation of every operation. In a virtualization cluster, a single undetected memory error can silently corrupt guest data or bring down multiple virtual machines. ECC technology actively scans, detects, and corrects single-bit flips caused by background radiation, delivering the essential resilience that keeps your hypervisor stable and your business online. The 32GB capacity paired with a Dual Rank x8 organization does more than just increase density. Interleaving across the dual ranks boosts effective bandwidth, a critical advantage for in-memory databases like Redis or real-time analytics platforms where sub-millisecond response times directly impact user experience and transaction throughput. The 3200MT/s transfer rate with a CAS latency of 22 ensures a balanced profile of speed and responsive command handling. Finally, the module operates at just 1.2V, which drastically lowers power consumption and thermal output in densely packed rack deployments. For IT managers scaling virtualized workloads and memory-hungry data services, this combination of fault tolerance, dense capacity, and energy efficiency translates into lower operational costs and uncompromised reliability.
General Virtualization
With a 32GB DDR4-3200 ECC UDIMM, populate at least two modules (64GB total) in a dual-channel configuration to balance memory bandwidth and capacity for moderate VM density. For heavily consolidated hosts, install four identical modules (128GB) to maximize the platform’s typical UDIMM limit, ensuring memory remains the scalability buffer rather than a bottleneck.
In-Memory Database
Capacity is paramount for in-memory workloads like Redis or SAP HANA. Deploy the maximum supported UDIMM count—often four 32GB DIMMs for 128GB total—to hold large datasets entirely in RAM. The ECC protection is non-negotiable here, preventing silent data corruption during constant write-intensive operations.
High-Performance Computing
HPC codes thrive on bandwidth; a balanced population across all memory channels is critical. Install four or eight (if the motherboard supports dual-DIMM-per-channel with UDIMMs) identical 32GB modules to saturate the memory controller and minimize NUMA latency. The DDR4-3200 speed and dual-rank x8 organization provide a strong baseline throughput per core for simulation and modeling jobs.
Server-class DDR4 ECC UDIMM rigorously tested and compatible with Dell PowerEdge T150, R350, HPE ProLiant ML30 Gen10, Lenovo ST250.
Q: Can I mix this M391A4G43AB1-CWE with other memory modules of different brands or speeds?
A: Mixing is not recommended for server environments. Even if the system boots, differing timings, ranks, or ICs may cause stability issues and prevent corrected ECC operation, undermining data integrity.
Q: Is this memory compatible with my system?
A: This DDR4 ECC UDIMM is designed for entry-level servers and workstations supporting Intel Xeon E-2300/E-2400 or AMD Ryzen Pro platforms. Verify your board specifically supports unbuffered ECC 288-pin modules.
Q: What is the recommended DIMM population order for optimal performance?
A: Consult your motherboard manual for exact slot numbering. Typically, for one DIMM, populate the furthest channel from the CPU; for two DIMMs, use matching slots in different channels to enable interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. This JEDEC-compliant server memory does not support XMP or overclocking. It operates exclusively at its fixed DDR4-3200 CL22 profile to guarantee reliability and ECC functionality in production environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. The annualized failure rate (AFR) for quality enterprise memory is typically well below 0.5%, assuming proper environmental conditions and usage within specified limits.