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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 2933MHz |
| RAM Standard | DDR4-2933/PC4-23400 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL21 |
| Rank | Single Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This is a server-grade DDR4-2933 Registered DIMM with ECC, purpose-built for enterprise platforms requiring uncompromised data integrity in virtualized environments and in-memory databases. The single-rank x4 configuration and registered signal architecture minimize bus loading for enhanced stability, while ECC corrects single-bit errors to ensure 24/7 operational reliability.
1. Registered buffering decouples the command and address lines from the memory controller, preserving signal integrity in fully loaded server chassis and ensuring stability for large-scale virtualization clusters.
2. ECC protection silently corrects single-bit errors at runtime, eliminating the risk of silent data corruption in transaction-heavy databases and financial processing systems.
3. 16 GB per module provides a dense yet cost-effective building block, allowing a multi-socket server to comfortably provision hundreds of virtual machines without sacrificing memory headroom.
4. 2933 MT/s throughput keeps the CPU's data pipelines saturated, dramatically cutting query latencies in in-memory analytics and high-concurrency cloud workloads.
5. Single Rank x4 with x4 DRAM devices enables per-device error recovery, allowing the server to survive a complete chip failure and stay online during critical enterprise operations.
The Samsung M393A2K40CB2-CVFC0 is a registered ECC DDR4-2933 server memory module, purpose-built to eliminate the risks that keep data center architects awake at night. Its ECC engine silently corrects single-bit errors before they cascade into silent data corruption—a critical safeguard in dense virtualization clusters, where a flipped bit in one VM can destabilize neighboring workloads or corrupt transactional records. The registered buffer decouples the memory controller from electrical loading, allowing you to fully populate all 288-pin slots with high-capacity DIMMs without losing signal integrity; this is non-negotiable when you are scaling a hypervisor farm to host dozens of business-critical applications on shared hardware. Operating at 2933MT/s with a single-rank x4 organization, the module balances strong bandwidth with low access latency, directly accelerating in-memory databases like Redis and SAP HANA where every microsecond of delay translates into slower real-time analytics and lost revenue. At a low 1.2V, it also measurably reduces power draw per node—you accrue substantial savings in cooling and energy costs across a full rack, which makes this memory a strategic investment in both uptime and total cost of ownership.
Server Memory Capacity Planning Guide
This DDR4-2933 ECC Registered DIMM (16GB, single-rank x4, 1.2V) is designed for server-class systems. Its error correction and registered signaling ensure reliability under sustained workloads. Use the following scenarios to plan module quantities and configurations.
General Virtualization
Balance density and cost by deploying two modules per populated memory channel (e.g., 8 x 16GB for 128GB total on a dual-socket server with 8 channels). This supports a moderate VM count while maintaining memory bandwidth for mixed workloads. Leave at least one channel free for future growth.
In-Memory Database
Maximize capacity and data integrity by populating all channels with one or two DIMMs each. A common configuration is 12 x 16GB (192GB) per node, allowing large in-memory datasets to reside entirely in RAM. The registered ECC design prevents silent data corruption critical for transactional databases.
High-Performance Computing (HPC)
Prioritize bandwidth by installing one DIMM per channel across all available channels (balanced configuration). For example, 8 or 12 x 16GB yields 128–192GB while fully saturating the memory controller’s channels at 2933MT/s. Single-rank modules reduce loading and help maintain low latency in parallel scientific computations.
Rigorously tested, this server memory is compatible with Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and more.
Q: Can I mix this M393A2K40CB2-CVFC0 with other memory modules of different brands or speeds?
A: Mixing is strongly discouraged for registered ECC memory. Mismatched speeds or ranks can cause instability or prevent booting. We recommend identical modules to guarantee verified signal integrity and reliable 24/7 operation.
Q: Is this memory compatible with my system? Which Intel or AMD platforms are supported?
A: This DDR4-2933 registered ECC RDIMM is designed for servers using Intel Xeon Scalable or AMD EPYC processors. Please verify your server board's qualified vendor list for the M393A2K40CB2-CVFC0 part number to confirm compatibility.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per memory channel in quantities matching the CPU’s memory controller width—typically one DIMM per channel for maximum speed, or balanced configurations per the server vendor’s slot numbering guide.
Q: Does this module support overclocking or XMP profiles?
A: No. As a registered ECC module built to JEDEC DDR4-2933 specifications, overclocking and XMP are not supported. It operates reliably at the fixed 1.2V, CL21, 2933MT/s profile for enterprise stability.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. With premium Samsung components and rigorous testing, annualized failure rates are extremely low, typically below 0.5% in properly cooled enterprise environments.