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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 4 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 2133 MHz |
| RAM Standard | DDR4-2133/PC4-17000 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL15 |
| Rank | Single Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
Designed for server environments, this DDR4-2133 Registered DIMM with ECC is purpose-built for memory-intensive workloads such as virtualization, in-memory databases, and mission-critical enterprise applications where data integrity is paramount. Its single-rank x8 configuration minimizes electrical loading on the memory bus, while the registered signal type enhances signal stability and the ECC engine provides real-time single-bit error correction to prevent silent data corruption in 24/7 operating scenarios.
1. ECC error correction detects and corrects single-bit errors in real time, eliminating silent data corruption that could crash financial ledgers or long-running scientific simulations.
2. Registered signal buffering stabilizes command and address lines across fully loaded memory channels, making dense virtualization clusters and large in-memory databases operationally reliable.
3. Single Rank x8 organization lowers electrical loading per module, enabling servers to populate all DIMM slots without signal roll-off and preserving uniform access latency under maximum capacity.
4. 2133 MT/s throughput supplies steady, contention-free bandwidth for always-on enterprise workloads such as web serving, file storage, and containerized microservices.
5. CL15 latency shortens the request-to-data gap compared to common server-grade timings, speeding up transactional query resolution in OLTP and real-time analytics platforms.
The M393A5143DB0-CPB0Q is a server-grade DDR4 RDIMM, and every design choice here directly addresses what keeps IT architects awake at night. In a virtualization cluster running dozens of VMs on a single node, an undetected bit-flip in memory can cascade into silent data corruption across critical workloads. The integrated ECC engine actively detects and corrects single-bit errors, turning what would be a weekend outage into a non-event — that is data integrity you can bank on, especially for in-memory databases like Redis or SAP HANA where every bit is a live transaction. When populating multiple DIMMs per channel for high-capency database servers, electrical loading quickly degrades signal quality. The Registered logic buffers command and address lines, stabilizing the entire memory bus so you can deploy denser configurations without random reboots or performance degradation. Meanwhile, the Single Rank x8 organization strikes an essential balance: it minimizes rank-to-rank timing conflicts, enabling consistent 2133 MT/s throughput under heavy load, which directly lowers query latency in real-time analytics. Finally, operating at a frugal 1.2V, this module shrinks the thermal footprint across fully loaded racks, cutting cooling costs and extending hardware longevity in 24/7 data centers. This is not just a memory stick; it is a risk-management asset.
General Virtualization
Deploy these 4 GB RDIMMs in balanced quantities across all memory channels to maximize interleaving and ECC reliability. For a dual-socket server with eight channels per CPU, install 16 identical modules to achieve 64 GB total—sufficient for hosting 10–15 light to medium VMs. Avoid mixing DIMM densities or ranks to maintain uniform latency and avoid unexpected downclocking.
In-Memory Database
Populate every available DIMM slot with these registered modules to reach the highest possible capacity while preserving data integrity. A fully loaded 24-slot server yields 96 GB, which can cache a substantial working set for Redis or Memcached on a single node. Pair the modules with a processor that supports high memory speeds and use NUMA-aware database configuration to reduce remote access latency.
High-Performance Computing (HPC)
Install one DIMM per channel to sustain DDR4-2133 speeds without throttling, which is critical for memory-bandwidth-bound scientific simulations. Although 4 GB per stick limits per-node capacity, use a cluster-wide shared memory model or scale-out with many identical nodes, each equipped with 8–12 modules for consistent 32–48 GB footprints. The ECC and registered signaling prevent silent data corruption during multi-day computational runs.
Server validated: rigorously tested, compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A5143DB0-CPB0Q with other memory modules of different brands or speeds?
A: Mixing brands or speeds is not recommended for this RDIMM. Mismatched ECC Registered modules often cause instability. Maintain identical part numbers, speed, rank, and voltage across all channels for validated, reliable server operation.
Q: Is this memory compatible with my system?
A: This DDR4-2133 ECC Registered DIMM is designed for server platforms such as Intel Xeon E5-2600 v3/v4 or AMD EPYC 7001 series. Please consult your motherboard’s qualified vendor list to confirm compatibility with this 4GB RDIMM.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server’s manual. Generally, populate identical DIMMs per channel starting with the farthest slot from the CPU. For balanced memory interleaving across multiple channels, fill blue or white slots first.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-standard, enterprise-grade RDIMM. It does not support overclocking or XMP profiles. Running at standard 2133MT/s ensures the data integrity and stability required in server environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. As an enterprise-class Samsung RDIMM, it delivers very high reliability, with an annualized failure rate typically well below 0.1% under normal server operating conditions.