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| Product Type | Memory Module |
|---|---|
| Compliance Standards | |
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2 V |
| RAM Speed | 2400 MHz |
| RAM Standard | DDR4-2400/PC4-19200 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL17 |
| Rank | Single Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This DDR4-2400 Registered ECC module is engineered for server platforms handling virtualization, in-memory databases, and mission-critical workloads where data integrity is paramount. Its single-rank x4 organization and CAS latency of 17 provide consistent signal integrity and predictable low-latency access on 288-pin registered interfaces, while ECC and the registered buffer safeguard against single-bit errors and maintain stability under fully populated memory channels.
1. ECC protection silently detects and corrects single-bit memory errors, safeguarding transactional databases and financial computations from silent data corruption in always-on server environments.
2. Registered signal buffering stabilizes the command and address bus under heavy DIMM population, enabling dense 24/7 server configurations without compromising signal integrity or uptime.
3. 16GB capacity per module strikes a efficient density sweet spot, allowing a dual-socket server to provision hundreds of virtual machines with ample memory headroom for hypervisor and guest OS demands.
4. Single Rank x4 organization maximizes bank-level parallelism and command scheduling efficiency, boosting memory bandwidth utilization for in-memory analytics and caching tiers.
5. DDR4-2400 operating speed delivers a steady 19.2 GB/s peak throughput per channel, supplying predictable bandwidth for scale-out web serving and containerized microservices clusters.
When you are running a business-critical virtualization cluster or an in-memory database like SAP HANA, memory errors are not just a nuisance—they can cause transaction corruption or unplanned downtime. The Samsung M393A2K40CB1-CRC 16GB DDR4-2400 RDIMM is engineered precisely to eliminate these risks. Its ECC technology continuously detects and corrects single-bit errors, effectively neutralizing silent data corruption before it cascades into application failure. Coupled with the Registered (buffer) design, this module stabilizes the command and address signals, allowing your server to populate all memory channels with large capacities without signal degradation—a must when you are packing dozens of VMs onto a host or keeping an entire dataset resident in RAM. The DDR4-2400 speed delivers a dependable 19.2 GB/s of bandwidth per channel, ensuring that your database queries and VM swap operations never starve for data. Built as a single-rank x4 module with CL17 latency, it also strikes an optimal balance between low electrical loading on the memory bus and predictable access times, which directly translates into consistent response times under heavy concurrent workloads. This is not just a component; it is a safeguard for your uptime and transactional integrity.
Capacity Planning Guide for 16GB DDR4-2400 ECC RDIMM
This Samsung 16GB DDR4-2400 Registered ECC DIMM (M393A2K40CB1-CRC) is a server-grade module built for reliability in data center workloads. Its ECC and registered signaling make it suited for platforms requiring high availability and data integrity.
General Virtualization
Populate memory channels symmetrically across all CPUs to avoid bottlenecks. A dual‑socket server with eight channels per CPU performs optimally with eight or sixteen identical 16GB RDIMMs, delivering 128GB or 256GB total. This balanced, fully‑populated configuration ensures predictable VM density and leverages ECC for continuous error correction.
In‑Memory Database
For applications like Redis or SAP HANA, maximize capacity by installing the maximum number of supported DIMMs—often 16 per server for 256GB—while reserving slots for memory mirroring or sparing if uptime is critical. The single‑rank x4 design reduces electrical loading, allowing full‑speed 2400MT/s operation even with all channels populated, which preserves latency‑sensitive database performance.
High‑Performance Computing
Install one DIMM per channel across all memory channels to supply uniform, high‑bandwidth access to each CPU. A typical dual‑socket HPC node using 16 of these 16GB modules achieves 256GB, meeting the 16GB‑per‑core guideline for many simulation and modeling codes. ECC is essential in HPC to prevent silent data corruption during multi‑day compute runs.
Proven compatibility after stringent testing with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A2K40CB1-CRC with other memory modules of different brands or speeds?
A: Mixing Registered ECC modules with unbuffered or non-ECC memory is not supported. Even same-type modules of different speeds may clock down, compromising stability. We recommend identical matched kits.
Q: Is this memory compatible with my system? (e.g., Intel Xeon E5-2600 v3/v4 or AMD EPYC platforms)
A: This RDIMM is designed for Intel Xeon E5-2600 v3/v4 and select AMD EPYC platforms requiring DDR4-2400 Registered ECC memory. Verify your server board's Qualified Vendor List (QVL) for exact compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate slots according to your server motherboard's silkscreen numbering, typically starting with the blue or primary channels. For one DIMM per channel, fill the first slot farthest from the CPU.
Q: Does this module support overclocking or XMP profiles?
A: No. As a server-class Registered ECC DIMM, it adheres strictly to JEDEC DDR4-2400 specifications. Overclocking and XMP are disabled to ensure maximum data integrity and system stability.
Q: What warranty and typical failure rate can I expect?
A: We provide a 1-year warranty. Enterprise-grade Samsung DDR4 RDIMMs exhibit an extremely low annualized failure rate (AFR), typically under 0.1%, ensuring reliable 24/7 operation.