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| Model | M393A2G40DB0-CPB30 |
|---|---|
| Compliance Standards | EU RoHS,FCC |
| Product Type | Memory Module |
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2133MHz |
| RAM Standard | DDR4-2133/PC4-17000 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL15 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This module is a server-class DDR4-2133 Registered DIMM with ECC, ideally suited for virtualization hosts and in-memory databases where data integrity and uptime are paramount. Its dual-rank x4 configuration and registered signaling ensure stable operation under heavy load, while CL15 latency and 1.2 V efficiency balance performance with power savings in dense rack deployments.
1. ECC protection continuously detects and corrects single-bit memory errors, virtually eliminating silent data corruption that could otherwise crash critical database nodes or compromise transactional accuracy in a 24/7 server environment.
2. Registered signal buffering decouples the memory bus from the CPU, enabling large-scale memory populations and seamless multi-socket scalability for dense enterprise virtualization platforms.
3. Dual Rank x4 organization keeps the memory channel interleaved and fully utilized, sustaining high throughput and low variance for workloads like high-frequency trading or large-scale web caching.
4. A 16GB module density offers ample capacity for hosting more virtual machines per rack unit, directly boosting consolidation ratios and lowering total cost of ownership in private cloud deployments.
5. DDR4-2133 speed provides a power-efficient yet stable bandwidth baseline, matching the balanced needs of mainstream server workloads where uptime and energy budgeting outweigh risky borderline overclocking.
Designed specifically for enterprise servers, the Samsung M393A2G40DB0-CPB30 RDIMM is engineered to eliminate the kind of silent failures that erode business continuity. Its ECC technology continuously detects and corrects single-bit errors caused by background radiation, a critical safeguard when you are running an in-memory database like SAP HANA where a single uncaught bit-flip can corrupt financial records or halt transactions. The registered buffer acts as a command relay, stabilizing signal integrity across fully populated 24-slot configurations, so a dense virtualization cluster hosting dozens of VMs never suffers a memory-induced crash. The dual-rank x4 organization leverages bank interleaving to stream data on both ranks simultaneously, delivering the sustained bandwidth required to keep virtual machines responsive during peak load and accelerating database queries. Operating at a low 1.2V, this 16GB module also significantly reduces thermal output and power draw across a fleet of servers, meaning reduced cooling costs and a smaller carbon footprint without sacrificing an ounce of reliability.
Memory Type Identification: Server (DDR4-2133 ECC Registered RDIMM, 16GB)
Capacity Planning Recommendations
General Virtualization
For a typical hypervisor hosting 10–15 light-to-medium VMs, start with four identical 16GB RDIMMs (64GB total) in a balanced quad-channel configuration. This provides sufficient headroom for memory overcommitment while the ECC protection guards against in-memory data corruption. Scale to eight modules (128GB) when virtualizing memory-intensive workloads like clustered databases.
In-Memory Database
Low-latency, data-consistency requirements demand a full population of same-rank RDIMMs across all memory channels. Deploy eight 16GB modules (128GB) or sixteen modules (256GB) to maximise interleaving and minimise NUMA penalties. Registered ECC ensures data integrity for critical caches; dual-rank x4 DIMMs offer the best signal balance for fully loaded configurations.
High-Performance Computing (HPC)
Achieve maximum memory bandwidth by populating every channel equally — six or eight modules per socket, for 96GB–128GB per node. The dual-rank design boosts bandwidth under heavy floating-point streaming workloads. Use identical, validated DIMMs to maintain symmetric memory access times, crucial for MPI-based parallel jobs. ECC corrects single-bit errors in large-scale simulations, preventing silent data corruption during long runtimes.
Rigorously validated for servers: Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650.
Q: Can I mix this M393A2G40DB0-CPB30 with other memory modules of different brands or speeds?
A: Mixing with different brands or speeds is not recommended. The system will downclock all modules to the slowest speed and may disable ECC or cause instability. For enterprise reliability, use identical Samsung RDIMMs.
Q: Is this memory compatible with my system?
A: This RDIMM requires a server platform with an Intel Xeon E5-2600 v3/v4 or AMD EPYC 7001 series processor and a DDR4 chipset. Verify your motherboard supports 16GB 2Rx4 PC4-17000 Registered ECC modules.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per channel starting with the slot farthest from the CPU. For dual-socket servers, balance memory across both processors according to the platform's memory population guide to enable full interleaving and channel performance.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant registered server memory module running at its native 2133MT/s. It does not support XMP or overclocking, as consistent, error-free operation under ECC is prioritized for enterprise workloads.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module includes a 1-year warranty. Typical annualized failure rate (AFR) is below 0.5% in compliant server environments, matching the high reliability standards of enterprise-grade Registered ECC DDR4 memory.