Dell A9781927 8GB Memory PC4-21300
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Dell A9781927 8GB Memory PC4-21300 DDR4 CL19 Ecc Registered New

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Part Number#: A9781927
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Short Description:
A9781927 8 Gigabytes(GB) (1X8GB) 2666 Megahertz (MHz) Pc4-21300 Cl19 Error correction code (ECC) Registered 1rx8 1.2v Double Data Rate 4 (DDR4) Synchronous Dynamic Random Access Memory (SDRAM) 288-pin Rdimm Memory Module for Server | Made by Dell | Brand New
Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days
Product overview for the Dell A9781927

In the ever-evolving landscape of technology, server performance plays a pivotal role in ensuring the smooth functioning of various applications and processes. One critical component contributing to this performance is the Random Access Memory (RAM). This article delves into the specifics of the Dell A9781927 8GB DDR4 memory module, providing an in-depth understanding of its features, specifications, and the role it plays in enhancing server capabilities.

Overview of Dell A9781927 8GB DDR4 Memory ModuleMemory Capacity and Type

The Dell A9781927 is an 8GB DDR4 memory module designed explicitly for servers. DDR4, short for Double Data Rate 4, represents the fourth generation of DDR RAM, offering improved performance and efficiency compared to its predecessors.

Memory Speed

This memory module operates at a speed of 2666MHz. The term '2666MHz' refers to the data transfer rate of the memory, indicating how quickly the RAM can read and write data. Higher MHz values generally translate to better performance, making this module suitable for applications demanding swift data processing.

ECC Registered and 1RX8 Configuration

The term "ECC Registered" stands for Error-Correcting Code Registered. ECC RAM is crucial in server environments, as it can detect and correct errors that may occur during data storage or transmission. This ensures the reliability and integrity of the data stored in the server.

The "1RX8" configuration signifies that the module is a single-rank memory module with eight memory banks. This configuration impacts the way data is stored and accessed, influencing the module's overall performance.

CAS Latency (CL) and Timing

The CAS Latency (CL) of this module is 19. CAS Latency represents the time delay between the moment a memory controller tells the memory module to access a particular column in a specific row and the moment the data is available for use. A lower CAS Latency is generally preferable for improved performance.

Voltage and DDR4 SDRAM

Operating at a low voltage of 1.2V, this memory module contributes to energy efficiency, a crucial consideration in data centers and server environments where power consumption is a significant concern. DDR4 SDRAM (Synchronous Dynamic Random Access Memory) is the specific type of RAM technology employed, offering improved speed and reliability.

288-pin RDIMM Form Factor

The physical design of the Dell A9781927 module follows the 288-pin RDIMM (Registered Dual In-Line Memory Module) form factor. This form factor is commonly used in server-grade memory modules, providing stability and reliability in high-performance computing environments.

Importance of Memory in Server EnvironmentsSpeed and Performance

Server memory plays a pivotal role in determining the speed and overall performance of a server. Faster memory modules, such as the Dell A9781927 8GB DDR4 operating at 2666MHz, contribute to quicker data access and processing, leading to enhanced server performance.

Error Correction for Data Integrity

In server environments, data integrity is of utmost importance. ECC Registered memory, as featured in the Dell A9781927 module, adds an extra layer of reliability by detecting and correcting errors that may occur during data storage or transmission. This is particularly critical in mission-critical applications where data accuracy is non-negotiable.

Energy Efficiency

The 1.2V operating voltage of the Dell A9781927 module aligns with the growing emphasis on energy efficiency in data centers and server farms. Lower voltage not only contributes to reduced power consumption but also helps in minimizing heat generation, contributing to a more sustainable and cost-effective server infrastructure.

Scalability and Compatibility

The 8GB capacity of this memory module provides a balance between cost and performance, catering to a wide range of server applications. Additionally, the DDR4 technology ensures compatibility with modern server architectures, allowing for easy integration into existing systems and facilitating future scalability.

Real-world Applications

In data centers handling vast amounts of information and requests simultaneously, the Dell A9781927 8GB DDR4 memory module proves instrumental in ensuring seamless operations. The combination of ECC-registered technology, 2666MHz speed, and 1.2V operating voltage makes it suitable for the rigorous demands of data center environments.


Server virtualization, a key aspect of modern IT infrastructure, relies heavily on robust memory performance. The Dell A9781927 module's specifications make it well-suited for virtualization tasks, where quick data access and reliable error correction are essential for maintaining the integrity of virtualized environments.

Enterprise-level Applications

For enterprises running resource-intensive applications such as databases, the choice of server memory is paramount. The Dell A9781927 8GB DDR4 module, with its ECC Registered feature and high-speed operation, caters to the requirements of enterprises relying on stable and efficient server performance.

General Information about the Dell A9781927
  • Manufacturer: Dell
  • Model Number or SKU# A9781927
  • Type: Memory (RAM)
  • RAM Type: PC4-21300
  • Product Name: 8GB DDR4 SDRAM Memory Module
Technical Information for the 8GB DDR4 RAM
  • Storage Capacity: 8GB
    • This indicates the amount of data the storage can hold, and in this case, it's 8 gigabytes.
  • Memory Technology: DDR4 SDRAM
    • DDR4 Synchronous Dynamic Random-Access Memory is the type of memory technology used. It's a modern and efficient form of RAM.
  • Number of Modules: 1 x 8GB
    • There is a single memory module with a capacity of 8GB.
  • Memory Speed: 2666MHz DDR4-2666/PC4-21300
    • This represents the speed at which the memory can operate. In this case, it's 2666 megahertz.
  • Data Integrity Check: ECC (Error-Correcting Code)
    • ECC is a feature that helps detect and correct errors in data, enhancing the reliability of the memory.
  • Features: Single Rank, Registered
    • The memory module is a single rank (configuration of memory chips) and is registered for improved stability.
  • CAS Latency Timings: CL19
    • CAS latency is the time it takes for the memory to access a particular column of data. Lower latency values are better, and in this case, it's CL19.
Compatibility of Dell 8GB Memory Module
  • PowerEdge C6420
  • PowerEdge FC640
  • PowerEdge M640
  • PowerEdge M640 VRTX
  • PowerEdge R440
  • PowerEdge R540
  • PowerEdge R640
  • PowerEdge R740
  • PowerEdge R740xd
  • PowerEdge R940
  • PowerEdge T440
  • PowerEdge T640
  • Precision Workstation R7920
  • Precision Workstation R7920 XL
  • Precision Workstation T5820
  • Precision Workstation T5820 XL
  • Precision Workstation T7820
  • Precision Workstation T7820 XL
  • Precision Workstation T7920
  • Precision Workstation T7920 XL

In short, the Dell A9781927 8GB DDR4 memory module stands as a testament to the continuous advancements in server technology. Its combination of ECC-registered technology, high-speed operation, and energy efficiency makes it a suitable choice for various server environments, ranging from data centers to enterprise-level applications. Understanding the specifications and importance of server memory is key to optimizing server performance and ensuring the smooth operation of critical tasks in the ever-evolving digital landscape.

Product Condition:
New Sealed
Warranty provided by ALLHDD.COM:
90 Days

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