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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 module is an enterprise-grade DDR4-2400 Registered DIMM with ECC, purpose-built for server platforms running memory-intensive workloads such as virtualization, in-memory databases, and mission-critical applications. Its single-rank x4 organization and CL17 latency deliver a balance of low electrical loading and efficient signal integrity, while the ECC and registered buffer provide robust data protection and enhanced stability in multi-DIMM configurations.
1. A 16GB capacity per module offers the right density for dense virtualization, letting each server host significantly more active VMs without exhausting memory resources.
2. Integrated ECC detects and corrects single-bit errors on the fly, eliminating silent data corruption that could compromise financial transactions or long-running scientific computations.
3. Registered signal buffering isolates the CPU from heavy DRAM loads, enabling fully populated memory channels with uncompromised stability for large-scale database clusters.
4. Single Rank x4 organization reduces electrical loading on the bus, ensuring consistent signal integrity and reliable 2400MT/s operation even when every DIMM slot is occupied in a rack-dense deployment.
5. A low 1.2V operating voltage cuts per-bit energy consumption significantly, which directly lowers both power bills and cooling demands in always-on hyperscale data centers.
When you operate a virtualized cluster running dozens of mission‑critical VMs, a single undetected bit‑flip can cascade into corrupted transactions or silent data loss. The M393A2K40CB1‑CRC0Q’s ECC actively corrects single‑bit errors on the fly, delivering the end‑to‑end data integrity that hypervisor‑dense environments demand—this isn’t a luxury, it’s your last line of defense against cosmic‑ray‑induced downtime. Its registered buffer re‑drives address and command signals, meaning you can fully populate all DIMM slots without sacrificing signal stability; for a VMware or KVM host scaling to hundreds of gigabytes, that translates directly into predictable, stutter‑free performance under heavy simultaneous loads. The single‑rank x4 organization further reduces electrical loading on the memory bus, allowing the controller to interleave accesses more efficiently. In an in‑memory database like SAP HANA or Redis, where nanosecond latency gaps separate a smooth user experience from transaction timeouts, this design elevates sustained bandwidth and cuts access collisions. Paired with a steady 2400‑MT/s rate and modest CL17 latency at just 1.2 V, the 16 GB RDIMM keeps thermals in check while delivering the deterministic response that dual‑socket servers crave—so your VMotion migrations and real‑time analytics complete faster without compromising long‑term reliability.
Capacity Planning Guide for DDR4-2400 ECC RDIMM
This 16 GB DDR4-2400 Registered ECC module is designed for server-class platforms. Its error correction and registered signaling ensure data integrity and signal stability under high-density memory configurations, making it ideal for mission-critical workloads.
General Virtualization
Deploy six or eight identical modules to reach 96–128 GB per host, maximizing memory channels for balanced VM density. Configure in matched sets (e.g., 6 x 16 GB) across all memory channels to sustain consistent performance under mixed application loads.
In-Memory Database
Populate all available DIMM slots with 16 GB RDIMMs to build a large, reliable memory pool—typically 256 GB or more in a dual-socket system. The ECC protection guards against bit flips during intensive caching and real-time analytics, while registered mode maintains stability at full capacity.
High-Performance Computing
Install one module per memory channel (e.g., 8 or 12 x 16 GB) to deliver the highest bandwidth per core. Use only identical single-rank x4 modules in a symmetric population order, which minimizes latency and allows the memory subsystem to sustain peak throughput for parallel simulations and modeling.
Server RDIMM, rigorously tested and compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, and Lenovo ThinkSystem SR650.
Q: Can I mix this M393A2K40CB1-CRC0Q with other memory modules of different brands or speeds?
A: Mixing this RDIMM with different brands or speeds can cause instability. For server reliability, all DIMMs in a memory channel should match specifications. We strongly recommend using identical Samsung M393A2K40CB1-CRC0Q modules for validated operation.
Q: Is this memory compatible with my system?
A: Compatibility requires a server board supporting DDR4 ECC Registered DIMMs, like Intel Xeon E5-2600 v3/v4 or AMD EPYC platforms. Please verify your server's Qualified Vendor List includes this Samsung module for guaranteed performance.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate memory channels symmetrically, starting with the first slot of each channel (e.g., DIMM A1, B1, C1). Consult your server manual for balanced configurations to ensure full memory bandwidth and interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant DDR4-2400 Registered DIMM; it does not support overclocking or XMP profiles. Server memory prioritizes data integrity and long‑term stability over speed tuning.
Q: What warranty and typical failure rate can I expect?
A: This Samsung RDIMM includes a 1-year warranty. Enterprise-grade server memory typically exhibits an extremely low annualized failure rate (AFR) of less than 0.5%, ensuring high reliability for your infrastructure.