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| Product Type | Memory Module |
|---|---|
| Compliance Standards | |
| 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 |
The M393A2G40DB0-CPB0 is a 16GB DDR4-2133 registered ECC RDIMM designed for server platforms, delivering critical data integrity and reliability for virtualized environments and in-memory databases. Its dual-rank x4 configuration and CL15 latency optimize memory bandwidth and signal stability, while the 1.2V operating voltage ensures energy-efficient performance in dense rack deployments.
1. ECC safeguards in-memory data integrity by silently correcting single-bit errors, which is vital for financial transactions and long-running analytics where even one undetected bit flip could corrupt results.
2. Registered signal buffering stabilizes command and address lines across heavily populated server boards, allowing IT architects to scale up to multi-terabyte configurations without sacrificing signal reliability.
3. Dual rank x4 organization maximizes bank-level parallelism, keeping memory channels efficiently saturated under dense virtualization stacks and preventing bandwidth stalls during peak consolidation.
4. Sixteen-gigabyte capacity per module hits a density sweet spot for virtualized two-socket servers, delivering ample memory per core to avoid NUMA-based performance penalties in mixed workload scenarios.
5. 2133 MT/s throughput provides a balanced memory bandwidth floor that aligns with mid-scale database and web-tier services, sustaining responsive query processing without requiring over-engineering on power or cooling.
The Samsung M393A2G40DB0-CPB0 is a 16GB DDR4 RDIMM purpose-built for enterprise servers where data integrity and uptime are paramount. Its Registered buffer cleans up signal loading so you can fully populate memory channels with stable, high-capacity configurations—this directly enables denser virtualization clusters without random VM crashes. On-die ECC constantly catches and corrects single-bit errors that would otherwise corrupt financial transactions or hypervisor state, turning silent data corruption into a non-issue. For performance-hungry in-memory databases like SAP HANA or Redis, the Dual Rank x4 layout uses rank interleaving to reduce latency spikes and sustain bandwidth during concurrent access; queries stay responsive as workloads spike. Finally, the 1.2V operating voltage slashes power draw and thermal output across rack-scale deployments, lowering TCO while letting you pack more nodes. Every one of these four traits safeguards your critical services against costly downtime and slow data processing.
The 16GB DDR4-2133 ECC Registered RDIMM is server memory. Capacity planning guidance for three key workloads:
General Virtualization
Populate each memory channel with one 16GB RDIMM for balanced bandwidth. A dual-socket server with 12 modules (192GB) provides headroom for 30+ VMs while maintaining NUMA balance. Always install identical DIMMs across channels to avoid performance inconsistencies.
In-Memory Database
Maximize capacity by filling every available slot with 16GB RDIMMs, accepting speed reduction to 1866MHz at 2DPC. A 24-module configuration (384GB) meets moderate in-memory database demands, and ECC protects transactional data. Enable memory sparing or mirroring where data availability is critical.
High-Performance Computing (HPC)
For peak bandwidth, install only one 16GB DIMM per channel to maintain 2133MHz. An 8-channel node with 8 modules (128GB) suffices for most simulations; add a second DIMM only if capacity is insufficient and bandwidth loss is acceptable. Profile memory bandwidth usage to confirm the 1DPC benefit.
Rigorously tested for servers. Compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.
Q: Can I mix this M393A2G40DB0-CPB0 with other memory modules of different brands or speeds?
A: Mixing is not recommended. Mismatched modules may cause instability or prevent booting. For reliable operation, use identical Samsung RDIMMs with the same speed, rank, and ECC registered design in your server.
Q: Is this memory compatible with my system?
A: This 16GB DDR4-2133 RDIMM is designed for Intel Xeon E5-2600 v3/v4 and similar platforms. Verify your server or motherboard supports registered ECC DDR4-2133 at 1.2V. Consult your system's qualified vendor list (QVL) for confirmation.
Q: What is the recommended DIMM population order for optimal performance?
A: Install identical DIMMs in sets of 4 or 8 per memory channel. Populate slots according to your server manual, usually blue slots first, matching channels to balance load and enable multi-channel ECC performance.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise-grade registered ECC module, it strictly adheres to JEDEC DDR4-2133 specifications. Overclocking or XMP is not supported; reliable data integrity and stability are prioritized.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module includes a 1-year warranty. Enterprise RDIMMs have an extremely low annualized failure rate (AFR), typically under 0.5%. Proper handling and cooling ensure long service life.