AB566039 Dell PC4-25600 64GB DDR4 3200 MHz RAM ECC

Dell AB566039 64GB DDR4 RDIMM Memory

The Dell AB566039 64GB 2Rx4 DDR4 3200MHz Registered ECC module is engineered for enterprise‑grade workloads, offering exceptional reliability, rapid data throughput, and stable multitasking performance. Designed specifically for PowerEdge servers and high‑end Precision workstations, this RDIMM upgrade enhances system responsiveness for virtualization, analytics, cloud computing, and mission‑critical applications.

General Specifications

• Brand Name: Dell
• Part Number: AB566039
• Product Type: 64GB DDR4 2Rx4 Registered ECC RDIMM Memory

Technical Breakdown

• Capacity: 64GB single module
• Memory Type: DDR4 SDRAM
• Speed: 3200MHz / PC4‑25600
• CAS Latency: CL22
• Rank Configuration: 2Rx4
• Error Correction: ECC for enhanced data integrity
• Signal Type: Registered (RDIMM)
• Voltage: 1.2V energy‑efficient operation

Physical Characteristics

• Form Factor: 288‑pin RDIMM

Compatibility

PowerEdge C‑Series

• PowerEdge C4140
• PowerEdge C6420
• PowerEdge C6520
• PowerEdge C6525

PowerEdge FC & MX Series

• PowerEdge FC640
• PowerEdge M640
• PowerEdge MX740c
• PowerEdge MX750c
• PowerEdge MX840c

PowerEdge R‑Series

R400 & R500 Series

• PowerEdge R440
• PowerEdge R450
• PowerEdge R540
• PowerEdge R550

R600 Series

• PowerEdge R640
• PowerEdge R650
• PowerEdge R650xs
• PowerEdge R6515
• PowerEdge R6525

R700 Series

• PowerEdge R740
• PowerEdge R740xd
• PowerEdge R740xd2
• PowerEdge R750
• PowerEdge R750xa
• PowerEdge R750xs
• PowerEdge R7515
• PowerEdge R7525

R800 & R900 Series

• PowerEdge R840
• PowerEdge R940
• PowerEdge R940xa

PowerEdge Tower Servers

• PowerEdge T440
• PowerEdge T550
• PowerEdge T640

PowerEdge XR Rugged Series

• PowerEdge XR11
• PowerEdge XR12
• PowerEdge XR2

Precision Workstations

• Precision 5820 Tower
• Precision 7820 Tower
• Precision R7920
• Precision T5820XL Tower
• Precision T7920XL Tower

Dell AB566039 64GB Memory Overview

The category of Dell PowerEdge server memory modules represents a critical foundation for enterprise computing environments that demand stability, performance consistency, and long-term reliability. Within this category, DDR4 Registered DIMM technology plays a decisive role in enabling modern data centers, virtualization clusters, private clouds, and mission-critical business applications. Memory modules such as the Dell AB566039 64GB 2Rx4 3200MHz PC4-25600 ECC Registered Dual Rank DDR4 RDIMM exemplify the engineering standards and compatibility assurances that define genuine Dell server memory designed specifically for PowerEdge platforms. This category addresses the need for high-capacity, high-bandwidth, and error-resilient memory solutions that align with the evolving requirements of enterprise workloads. Enterprise server memory differs fundamentally from consumer desktop memory due to its emphasis on data integrity, system uptime, and predictable behavior under continuous load. Dell PowerEdge memory modules are validated at the system level, ensuring that electrical characteristics, timing parameters, thermal profiles, and firmware interactions remain within optimal tolerances. This category encompasses DDR4 SDRAM modules that integrate ECC error correction, registered buffering, and server-grade DRAM components to deliver a balanced combination of capacity scaling and memory controller efficiency. The Dell AB566039 module resides within this category as a representative example of a 64GB RDIMM solution optimized for modern PowerEdge server architectures.

DDR4 SDRAM

DDR4 SDRAM technology defines the current generation of memory used across a wide range of enterprise servers. Compared to earlier DDR3 implementations, DDR4 offers improved bandwidth, reduced operating voltage, and enhanced signaling efficiency. Within the category of Dell PowerEdge server memory, DDR4 SDRAM modules are engineered to support higher data transfer rates such as 3200MHz while maintaining power efficiency at 1.2 volts. These attributes allow servers to process large datasets, support dense virtualization environments, and maintain responsiveness across concurrent workloads. The PC4-25600 specification associated with 3200MHz DDR4 memory indicates a theoretical peak bandwidth of 25.6 GB per second per module. In enterprise systems, this bandwidth directly impacts application throughput, database query response times, and the ability of multi-core processors to access memory without bottlenecks. Dell PowerEdge servers leverage multi-channel memory architectures, making high-bandwidth DDR4 RDIMM modules essential for achieving balanced system performance. The Dell AB566039 memory module fits seamlessly into this technological category, offering the performance characteristics required by modern CPUs from Intel Xeon and AMD EPYC families when deployed in validated PowerEdge configurations.

ECC Registered

Error Correcting Code technology is a defining characteristic of enterprise server memory. ECC memory detects and corrects single-bit memory errors and identifies multi-bit errors before they can compromise system stability or data integrity. Within the category of Dell PowerEdge server memory modules, ECC functionality is non-negotiable for environments where data accuracy is critical, such as financial systems, healthcare applications, scientific computing, and enterprise databases. ECC registered memory provides a safeguard against silent data corruption that could otherwise lead to unpredictable system behavior or long-term data inconsistency. Registered DIMMs introduce an additional register between the memory controller and the DRAM chips, reducing the electrical load on the memory controller and allowing systems to support higher capacities and more populated DIMM configurations. This design is particularly important in servers with large memory footprints, where multiple DIMMs per channel are required. The category of Dell PowerEdge DDR4 RDIMM memory emphasizes this registered architecture as a key enabler for scalability and reliability. Modules like the Dell AB566039 64GB RDIMM exemplify how ECC and registered buffering work together to support stable operation under continuous enterprise workloads.

Dual Rank x4

Dual rank memory architecture plays a significant role in optimizing memory performance within server systems. A dual rank module effectively presents itself as two logical sets of memory ranks to the memory controller, allowing improved interleaving and more efficient utilization of memory channels. Within the category of Dell PowerEdge server memory, dual rank RDIMMs are commonly used to balance capacity expansion with throughput efficiency. The 2Rx4 configuration found in modules such as the Dell AB566039 indicates dual rank organization using x4 DRAM chips, which is a preferred configuration for ECC effectiveness and memory controller optimization. The x4 DRAM chip design enhances error detection and correction capabilities by distributing data across more chips, improving fault isolation. This architecture aligns with enterprise reliability standards and contributes to improved resilience in large memory deployments.

CL22 Latency

CAS latency, indicated as CL22 in DDR4-3200 memory modules, represents the number of clock cycles required for the memory to respond to a read request. Within enterprise server environments, latency must be evaluated alongside bandwidth, capacity, and workload characteristics. The category of Dell PowerEdge DDR4 RDIMM memory emphasizes balanced latency profiles that align with server CPU memory controllers and system firmware tuning. CL22 latency is standard for DDR4-3200 RDIMM modules and reflects the trade-offs required to achieve higher frequencies while maintaining signal integrity and reliability. In practical server deployments, CL22 latency does not hinder overall system responsiveness when paired with high bandwidth and multi-channel memory configurations. Instead, it contributes to predictable memory access patterns that enterprise applications can rely upon. Dell validates memory modules like the AB566039 within complete system configurations to ensure that latency parameters are optimized through BIOS settings and firmware updates. This validation process is a core aspect of the category, distinguishing genuine Dell server memory from generic alternatives.

Power

Operating voltage plays a crucial role in server power consumption and thermal behavior. DDR4 memory modules operating at 1.2 volts offer significant improvements in energy efficiency compared to earlier generations. Within the category of Dell PowerEdge server memory, low-voltage operation contributes to reduced heat output, lower cooling requirements, and improved overall system efficiency. These benefits are particularly important in data centers where power density and thermal management directly impact operational costs. The Dell AB566039 memory module exemplifies this category’s focus on energy efficiency by adhering to the DDR4 standard voltage of 1.2V while delivering high capacity and bandwidth. PowerEdge servers are engineered with optimized airflow and thermal sensors that work in conjunction with validated memory modules to maintain stable operating temperatures. This integrated approach ensures that memory performance remains consistent even under sustained load, reinforcing the category’s emphasis on reliability and efficiency.

288-Pin RDIMM

The 288-pin RDIMM form factor is the physical standard for DDR4 registered memory modules used in enterprise servers. Within the category of Dell PowerEdge server memory, this form factor ensures mechanical compatibility with server motherboard DIMM slots and supports advanced signaling requirements. The precise pin layout and electrical design of 288-pin RDIMMs enable higher frequencies and improved signal integrity compared to previous DIMM generations. Physical compatibility extends beyond pin count to include module height, heat spreader design, and component placement. This attention to detail ensures that memory modules such as the Dell AB566039 integrate seamlessly into supported server platforms without obstructing cooling or serviceability. As part of this category, physical reliability is as important as electrical performance.

Server-Grade

The quality of DRAM components used in server memory modules directly impacts reliability and longevity. These components undergo extensive testing for signal integrity, temperature tolerance, and endurance under continuous operation. The Dell AB566039 module reflects this commitment to quality by incorporating DRAM chips that meet Dell’s stringent validation criteria. Each memory module is tested for compatibility with specific PowerEdge server, ensuring predictable behavior across firmware revisions and operating system environments. This level of quality control distinguishes genuine Dell memory modules from third-party alternatives that may not undergo equivalent system-level validation.

Compatibility

Compatibility assurance is a defining feature of the Dell PowerEdge server memory category. Memory modules are validated across a wide range of PowerEdge, including rack, tower, and modular servers. This validation process ensures that modules like the Dell AB566039 function correctly with supported CPUs, chipsets, and BIOS configurations. Compatibility extends to features such as memory mirroring, sparing, and advanced RAS capabilities that are integral to enterprise server reliability. PowerEdge servers often support large memory capacities through multiple DIMM slots per channel. Registered DDR4 memory modules enable these configurations by reducing electrical load and maintaining signal stability. The category emphasizes compatibility not only at the hardware level but also within Dell’s systems management ecosystem, including iDRAC and Open Manage tools. This integration allows administrators to monitor memory health, receive predictive failure alerts, and perform proactive maintenance.

Use Cases

The category of Dell PowerEdge DDR4 RDIMM memory supports a diverse range of enterprise workloads. Virtualization platforms rely on high-capacity memory modules to host multiple virtual machines with consistent performance. Database servers benefit from large memory pools that reduce disk I/O and improve query performance. Analytics and big data applications leverage high bandwidth memory to process large datasets efficiently. Modules like the Dell AB566039 are designed to address these use cases by providing a balance of capacity, speed, and reliability. In cloud and hybrid infrastructure environments, memory scalability is essential for adapting to changing workload demands. Dell PowerEdge server memory modules enable administrators to scale memory resources predictably while maintaining compatibility and performance. This scalability is a core attribute of the category, supporting long-term infrastructure planning and investment protection.