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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 for entry-level servers and workstations, this 32GB DDR4-3200 UDIMM with ECC ensures data integrity for virtualization, file services, and content creation workloads. Its dual-rank x8 organization improves memory bandwidth and capacity utilization, while the Unbuffered signal type with CL22 latency delivers stable, responsive performance under mission-critical operations.
1. Generous module capacity allows denser memory configurations, enabling a single-socket server to host substantially more virtual machines without resorting to slow disk swapping.
2. DDR4 technology provides proven stability and broad platform compatibility, streamlining qualification and deployment across existing enterprise server infrastructures with improved power efficiency.
3. High data rate operation supplies the sustained bandwidth required by in-memory databases and real-time analytics, keeping query latencies low even under heavy concurrent user loads.
4. ECC error correction autonomously detects and repairs single-bit flips, preserving transactional integrity and preventing silent data corruption in round-the-clock critical services.
5. Dual-rank construction interleaves memory banks to fully utilize the memory channel, delivering consistent throughput that stabilizes VM performance during aggressive consolidation.
When your infrastructure runs multiple virtual machines or an in-memory database like SAP HANA, silent data corruption is the enemy you cannot see. The Samsung M391A4G43AB1-CWEQ0 is engineered to eliminate that risk with native ECC error correction. In a dense virtualization cluster, a single bit flip caused by background radiation can crash a hypervisor or silently corrupt financial records. This unbuffered ECC UDIMM detects and corrects single-bit errors in real time, turning unpredictable downtime into continuous availability without the latency overhead of registered memory.
Its dual-rank x8 organization amplifies that reassurance under load. Dual rank interleaving allows the memory controller to pipeline read and write operations across internal banks, yielding measurably higher throughput when your Redis instance is handling millions of requests per second. Combined with a 32GB capacity per module, you can allocate generous memory to each guest OS without oversubscription, avoiding the performance cliff of storage-backed swap. The DDR4-3200 speed and standard 1.2V operation ensure that this performance arrives with power efficiency, reducing thermal strain in compact 1U servers. What this means for you is straightforward: fewer failed transactions during peak trading hours, faster query responses against large datasets, and a server that stays stable even when memory utilization crosses 90 percent. This is not just a spec bump; it is infrastructure insurance that pays for itself with every incident avoided.
General Virtualization
Deploying multiple VMs benefits from balanced capacity and bandwidth. Populate at least four of these 32GB ECC UDIMMs (128GB total) across all memory channels to maximize interleaving and sustain dense VM workloads without swapping. Maintain identical dual-rank x8 DIMMs per channel for stable signal integrity and consistent performance.
In-Memory Database
Large dataset caching demands maximum capacity and data protection. Install a full set of eight modules (256GB) to saturate a typical single-socket server platform, keeping spare capacity for in-memory table growth. ECC corrects single-bit errors automatically, which is critical for transactional consistency and uptime in Redis or SAP HANA environments.
High-Performance Computing
HPC clusters prioritize memory bandwidth and error resilience under sustained number-crunching. Configure a balanced six- or eight-DIMM population with one DIMM per channel to achieve the highest DDR4-3200 throughput. Dual-rank x8 UDIMMs offer a sweet spot for fluid dynamics or molecular modeling, while ECC guards against silent data corruption during parallel checkpointing.
Rigorously tested, validated for servers/workstations like Dell PowerEdge T150, HPE MicroServer Gen10 Plus, Supermicro X11SCA-F.
Q: Can I mix this M391A4G43AB1-CWEQ0 with other memory modules of different brands or speeds?
A: We do not recommend mixing modules of different brands or speeds. For consistent ECC functionality and stability, install identical 3200MT/s UDIMMs in matched sets across all channels.
Q: Is this memory compatible with my Intel or AMD server platform?
A: This unbuffered ECC UDIMM fits entry-level servers and workstations with Intel Xeon E/Core or AMD Ryzen PRO/EPYC platforms. Verify your motherboard’s QVL lists DDR4-3200 ECC UDIMM support.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs in pairs per channel, starting from the farthest slot from the CPU. Follow your board's manual for dual-channel balancing to fully utilize the dual-rank x8 organization.
Q: Does this module support overclocking or XMP profiles?
A: No. This server-class ECC UDIMM complies with JEDEC DDR4-3200/PC4-25600 standard at 1.2V. Overclocking and XMP are disabled to preserve data integrity and error correction reliability.
Q: What warranty and typical failure rate can I expect?
A: This module carries a 1-year limited warranty. With built-in ECC and Samsung's proven design, it delivers an ultra-low annualized failure rate (AFR) when operated within specified conditions.