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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 8 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 3200MHz |
| RAM Standard | DDR4-3200/PC4-25600 |
| Error Identifying | ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL22 |
| Rank | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | UDIMM |
Suited for entry-level servers and professional workstations, this single-rank x8 8GB DDR4-3200 UDIMM with ECC ensures data integrity for critical tasks like CAD, content creation, and virtualization where stability is paramount. Its unbuffered design and 1.2V low-voltage operation deliver reliable, low-latency CL22 performance on platforms that require ECC without registered buffering.
1. ECC error correction safeguards transactional data integrity, preventing silent corruption in always-on small business servers where uptime is non-negotiable.
2. 3200MT/s transfer speed delivers the consistent bandwidth needed to accelerate VM provisioning and lightweight container orchestration under mixed workloads.
3. Unbuffered architecture trims access latency, yielding faster query responses for database-driven applications running on entry-level server hardware.
4. Single Rank design reduces electrical load on the memory bus, enabling fully populated DIMM configurations without sacrificing stability or rated speed.
5. 8GB capacity offers a practical memory footprint for dedicated hosting controllers or edge gateways, balancing cost with sufficient headroom for core services.
Based on its 288-pin UDIMM form factor, integrated ECC, and 1.2V DDR4 signaling, the M391A1K43DB2-CWEQ is unequivocally a server- and workstation-class module—not a desktop or laptop DIMM. In such environments, four characteristics translate directly into operational confidence. The ECC engine is your frontline defense against silent data corruption: in a virtualization cluster hosting customer-facing VMs, a single uncorrected bit-flip can propagate into a crashed database or a corrupted backup, and ECC intercepts and corrects it on the fly, safeguarding uptime and data fidelity. The unbuffered architecture eliminates the register latency of RDIMMs, which becomes tangible when running an in-memory database like Redis—every nanosecond of reduced command delay increases query throughput and shortens transaction response times for real-time analytics. The 3200MHz clock and 25.6 GB/s bandwidth ensure that under heavy consolidation, multiple VMs get the memory pipe they need without bottlenecking. Finally, the 1.2V low-voltage design paired with the single-rank x8 layout minimizes power draw and thermal footprint. In a 24/7 NAS or a compact edge server with limited airflow, that means lower cooling stress and prolonged component life, while the single-rank configuration guarantees seamless compatibility across a wide range of server boards, letting you populate all channels without signal training issues and reducing your total cost of ownership.
This 8GB DDR4-3200 ECC Unbuffered DIMM is a server-grade memory module, ideal for platforms requiring data integrity and moderate capacity. Below is capacity planning guidance for key server workloads.
General Virtualization
Start with four to six identical modules (32–48 GB) to run a dozen or so moderate VMs. Populate two DIMMs per channel wherever possible to leverage interleaving and boost bandwidth. Keep spare slots free so you can scale later without replacing existing memory.
In-Memory Database
Maximise density by filling all available slots—for example, eight or sixteen 8 GB sticks to reach 64 GB or 128 GB. Symmetrical population with matched single-rank ECC DIMMs preserves latency consistency and guards against silent data corruption during heavy cache operations.
High-Performance Computing
Per node, install eight modules (64 GB) to fully saturate dual-socket eight-channel platforms. The 1.2V, single-rank x8 design sustains 3200 MT/s reliably, delivering the bandwidth essential for parallel simulation or modelling jobs while ECC protects long-running computations.
Validated for servers: compatible with Dell PowerEdge T140/R240/T340, HPE ML30 Gen10, Lenovo ST50. Rigorously tested.
Q: Can I mix this M391A1K43DB2-CWEQ with other memory modules of different brands or speeds?
A: Mixing is not recommended. Even identical specs can cause instability in server environments. For guaranteed reliability, populate all channels with identical Samsung ECC UDIMMs of the same MPN.
Q: Is this memory compatible with my Intel Xeon E-2300 or AMD Ryzen Pro server platform?
A: Yes, it's an industry-standard DDR4-3200 ECC UDIMM. It's validated for Intel Xeon E-2300 and select AMD Ryzen Pro platforms using C256/C246 chipsets. Verify motherboard support for 1.2V Unbuffered ECC.
Q: What is the recommended DIMM population order for optimal performance?
A: Install identical modules in identical slots per memory channel, starting with slot 1 (farthest from CPU). For single-rank x8 configurations, populate one DIMM per channel first to maximize throughput.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-standard server memory module running at fixed 3200MT/s with CL22. Server-class ECC UDIMMs do not support XMP or overclocking, prioritizing data integrity over speed.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module includes a 1-year warranty. Enterprise-grade DDR4 ECC UDIMMs typically exhibit an annualized failure rate below 0.5%, offering excellent long-term reliability in 24/7 server operations.