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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 8 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 x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR4-2133 registered ECC module with its single-rank x4 organization is purpose-built for virtualization hosts and in-memory databases on dual-socket server platforms, where data integrity and stable signal integrity under heavy load are critical. The 1.2V low-power operation paired with CL15 latency delivers a robust balance of energy efficiency and reliable error correction, ensuring consistent performance in scale-out enterprise environments.
1. Registered DIMM architecture keeps command and address signals pristine across large memory populations, ensuring reliable operation in dense server racks.
2. Error-correcting code memory detects and corrects single-bit errors, protecting in-memory data integrity for mission-critical enterprise applications.
3. The registered signal type buffers control signals, reducing electrical loading on the memory controller and enabling higher module counts per server.
4. Single Rank x4 organization provides a balanced mix of bandwidth and capacity, minimizing rank-switching latency for consistent virtual machine responsiveness.
5. Operating at just 1.2 volts, the module cuts power consumption substantially, resulting in lower thermal output and reduced data center cooling costs.
The Samsung M393A1G40DB0-CPB is an 8GB DDR4-2133 registered server memory module, and its design choices directly address the punishing demands of modern data centers. In a dense virtualization cluster running dozens of virtual machines, a single undetected bit flip can cascade into data corruption or a host crash. The module’s ECC engine actively hunts down and corrects these errors in real time, preserving data integrity and maximizing uptime for every guest workload. The registered signal buffer mitigates the electrical load on the memory controller as you populate channel after channel, which means you can scale to higher capacities across your rack without sacrificing stability or boot reliability—critical when you are packing nodes for a hyper-converged infrastructure.
That stability pairs with the module’s single-rank x4 organization to deliver predictable, low-latency fetch at CL15 timings, a measurable advantage in memory-hungry database instances such as an in-memory SQL cache or SAP HANA. The 1.2V DDR4 voltage further reduces thermal waste across an entire server fleet; in a 24/7 operating environment, that translates directly into lower power bills, reduced thermal throttling, and a smaller carbon footprint. From safeguarding financial transactions to accelerating virtual desktop pools, this RDIMM turns architectural features into tangible operational gains.
General Virtualization
This 8GB DDR4-2133 ECC RDIMM is ideal for moderate-density virtualization hosts. For a typical dual-socket server, populate six to eight identical modules per CPU to balance memory bandwidth and capacity, aiming for 48–64 GB total per host. This configuration comfortably supports 10–15 light to medium virtual machines, while registered ECC ensures data integrity for multi-tenant workloads.
In-Memory Database
Low-latency in-memory databases like Redis or SAP HANA benefit from the module’s single-rank x4 organization and CL15 timings, which minimize access delays. Deploy six or eight modules per memory channel in a balanced configuration to maximize bandwidth, targeting 64–128 GB per node. The registered ECC is critical for preventing silent data corruption in transactional and analytical in-memory stores.
High-Performance Computing
For memory-bandwidth-sensitive HPC tasks, populate all memory channels symmetrically—typically one 8GB RDIMM per channel across eight channels per socket—to achieve optimal interleaving. While 2133 MT/s is modest, the registered design maintains signal integrity in fully loaded systems. Scale to 16 modules (128 GB) for large-scale simulations, leveraging ECC to safeguard long-running computational integrity.
Rigorously tested server memory. Compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A1G40DB0-CPB with other memory modules of different brands or speeds?
A: Mixing with dissimilar DIMMs is not recommended for registered ECC memory. It can cause instability or failure. Uniformity across channels ensures signal integrity and reliable server operation.
Q: Is this memory compatible with my system?
A: This DDR4-2133 RDIMM is compatible with server platforms supporting registered ECC DIMMs, such as Intel Xeon E5-2600 v3/v4 or select AMD EPYC systems. Verify motherboard memory QVL lists.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per channel, following your motherboard's population guide. Typically, fill blue or white slots first to balance memory channels and achieve maximum throughput.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server memory module designed for stability under continuous workload. It does not support overclocking or XMP profiles.
Q: What warranty and typical failure rate can I expect?
A: This module carries a 1-year warranty. Enterprise-grade DDR4 RDIMMs exhibit extremely low failure rates when operated within specifications, ensuring long-term mission-critical reliability.