HPE 864708-591 32GB Memory PC4-21300
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HPE 864708-591 32GB Ram 2666Mhz Pc4-21300 Cl19 Ecc Dual Rank Bulk

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Part Number#: 864708-591
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Short Description:
864708-591 32 Gigabytes (GB) 1X32gb 2666 Megahertz (MHz) Personal Computer (PC) 4-21300 Cl19 Error correction code (ECC) Registered Dual Rank X4 1.2v Double Data Rate 4 Synchronous Dynamic Random Access Memory (SDRAM) 288-Pin Rdimm Memory Module for Server | Made by HPE | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Product Overview of the HPE 864708-591

In the fast-paced world of information technology, servers play a crucial role in managing and processing vast amounts of data. To optimize server performance, selecting the right memory module is essential. One such component that stands out is the HPE 864708-591 32GB DDR4 RAM module. In this comprehensive guide, we'll delve into the intricate details of this memory module, exploring its specifications, features, and how it contributes to server efficiency.

Key Specifications

Before we dive into the technicalities, let's break down the key specifications of the HPE 864708-591 32GB DDR4 RAM module:

Capacity 32 Gigabytes (GB)

The primary purpose of a RAM module is to provide the server with temporary storage for actively used programs and data. With a capacity of 32GB, the HPE 864708-591 ensures that servers can handle a substantial amount of concurrent processes, promoting smoother and more efficient operations.

Memory Type DDR4 Synchronous Dynamic Random Access Memory (SDRAM)

DDR4 SDRAM is the fourth generation of double data rate synchronous dynamic random-access memory, offering improved performance and energy efficiency compared to its predecessors. The HPE 864708-591 leverages DDR4 technology to enhance the speed and responsiveness of servers.

Memory Speed 2666 Megahertz (MHz)

Memory speed, measured in megahertz, dictates how quickly data can be transferred to and from the memory module. The 2666MHz speed of the HPE 864708-591 ensures rapid data access, reducing latency and enhancing overall server performance.

Form Factor 288-Pin Rdimm

The form factor of a memory module refers to its physical size and shape. The HPE 864708-591 adopts the 288-pin Registered Dual In-Line Memory Module (Rdimm) design, which is a standard form factor for server memory. This form factor ensures compatibility with a wide range of server configurations.

Error Correction Code (ECC) and Registered Dual Rank

Error correction code (ECC) is a critical feature in server memory, helping detect and correct errors that may occur during data storage or retrieval. The HPE 864708-591 comes equipped with ECC and Registered Dual Rank technology, enhancing the reliability and stability of the server's memory subsystem.

Voltage 1.2v

Power efficiency is a crucial consideration in modern server environments. The HPE 864708-591 operates at a low voltage of 1.2v, contributing to energy savings and reducing the overall power consumption of the server.

Double Data Rate 4 (DDR4)

Double Data Rate (DDR) technology enables faster data transfer rates by allowing data to be transmitted on both the rising and falling edges of the clock cycle. The HPE 864708-591 utilizes DDR4, the latest iteration of this technology, to deliver improved performance and bandwidth compared to earlier DDR versions.

CL19 Latency

CAS latency(CL) is a measure of the delay between the memory controller sending a request and the module responding. With a CL19 latency, the HPE 864708-591 strikes a balance between speed and responsiveness, catering to the demands of server applications that require both.

Application: Designed for Servers

It's important to emphasize that the HPE 864708-591 is specifically designed for server environments. Unlike consumer-grade memory modules, server memory must meet higher standards of reliability and performance to handle the demanding workloads associated with server operations.

Benefits of HPE 864708-591 in Server Environments

Now that we've examined the technical specifications, let's explore the tangible benefits that the HPE 864708-591 brings to server environments

Enhanced Performance
  • The 2666MHz speed and DDR4 technology contribute to faster data transfer rates, reducing latency and enhancing overall server performance.
Reliability with ECC
  • The inclusion of the Error Correction Code (ECC) ensures that the HPE 864708-591 can detect and correct memory errors, minimizing the risk of data corruption and system crashes.
Optimized for Server Workloads
  • The module's 32GB capacity is well-suited for handling the intensive workloads commonly encountered in server environments, such as database management, virtualization, and data analytics.
Stability with Registered Dual Rank
  • Registered Dual Rank technology enhances the stability of the memory subsystem, ensuring consistent and reliable performance under varying workloads.
Energy Efficiency
  • Operating at a low voltage of 1.2v, the HPE 864708-591 contributes to energy savings and aligns with the growing emphasis on environmentally friendly and power-efficient data center operations.
Product Details of the HPE 864708-591

The 864708-591 32GB DDR4 SDRAM Memory Module is a server memory module that is designed to be used in servers. This memory module is manufactured by HPE, which is a well-known brand in the computer technology industry. The module is designed to be compatible with servers that use DDR4 memory.

Memory Type

The 864708-591 32GB DDR4 SDRAM Memory Module is a type of DDR4 memory. DDR4 memory is the fourth generation of double data rate (DDR) memory. It is faster and more efficient than its predecessors, DDR3 and DDR2. DDR4 memory has a higher bandwidth and lower power consumption than DDR3 and DDR2 memory.


The 864708-591 32GB DDR4 SDRAM Memory Module has a capacity of 32GB. This means that it can store 32 gigabytes of data. The capacity of a memory module is an important factor to consider when choosing a memory module for a server. Servers require large amounts of memory to perform efficiently.

Memory Speed

The 864708-591 32GB DDR4 SDRAM Memory Module has a memory speed of 2666MHz. Memory speed refers to the rate at which the memory module can transfer data. The higher the memory speed, the faster the memory module can transfer data. Memory speed is an important factor to consider when choosing a memory module for a server. Servers require memory modules with high memory speeds to perform efficiently.

Memory Latency

The 864708-591 32GB DDR4 SDRAM Memory Module has a memory latency of CL19. Memory latency refers to the time it takes for the memory module to access data. The lower the memory latency, the faster the memory module can access data. Memory latency is an important factor to consider when choosing a memory module for a server. Servers require memory modules with low memory latency to perform efficiently.

ECC Registered

The 864708-591 32GB DDR4 SDRAM Memory Module is an ECC-registered memory module. ECC stands for Error-Correcting Code. ECC memory is designed to detect and correct errors that occur in the memory module. This is an important feature for servers because it ensures that the data stored in the memory module is accurate and reliable.

Dual Rank X4

The 864708-591 32GB DDR4 SDRAM Memory Module is a dual-rank memory module. Dual-rank memory modules have two sets of memory chips on each side of the module. This allows the memory module to access two sets of data simultaneously, which increases the memory module's performance. X4 refers to the fact that the memory module has 4-bit wide data lines.


The 864708-591 32GB DDR4 SDRAM Memory Module has a voltage rating of 1.2 volts. DDR4 memory modules require a lower voltage than DDR3 and DDR2 memory modules. This lower voltage rating means that the memory module consumes less power and generates less heat. This is an important feature for servers because it helps to reduce the server's power consumption and heat generation.

General Information about the HPE 864708-591
  • Manufacturer: HPE
  • Part Number or SKU# 864708-591
  • Product Type: Memory (RAM)
  • RAM Type: PC4-21300
Technical Information 864708-591Storage Capacity 32GB
  • Unveiling an impressive 32GB storage capacity, the 864708-591 is designed to meet the demands of high-performance computing.
Memory Technology DDR4 SDRAM
  • Harnessing the power of DDR4 SDRAM technology, this module ensures efficient and reliable data processing.
Number Of Modules 1 X 32GB
  • Featuring a single module with a 32GB capacity, the 864708-591 simplifies installation and configuration.
Bus Speed 2666MHz DDR4-21300/PC4-2666V
  • Operating at a brisk 2666MHz, the DDR4-21300/PC4-2666V bus speed enables swift data transfer, optimizing overall system performance.
Data Integrity Check ECC
  • Boasting Error-Correcting Code (ECC) functionality, this module enhances data integrity by automatically detecting and correcting errors.
Signal Processing Registered
  • With registered signal processing, the 864708-591 ensures stability and reliability in data transmission, contributing to system efficiency.
Cas Latency Timings CL19
  • The CAS latency timings of CL19 signify the speed at which data is accessed, striking a balance between performance and responsiveness.
Rank Features 2Rx4
  • Exhibiting 2Rx4 rank features, this module provides a dual-rank configuration for optimized memory access and efficiency.
Form Factor 288-Pin RDIMM
  • Sporting a 288-pin RDIMM form factor, the 864708-591 is designed for compatibility and easy integration into a variety of systems.

In summary, the HPE 864708-591 32GB DDR4 RAM module stands out as a reliable and high-performance solution for server environments. Its robust specifications, including ECC support, Registered Dual Rank technology, and energy efficiency, make it an ideal choice for data centers and enterprises seeking to enhance their server capabilities.

By understanding the key specifications, benefits, and installation procedures outlined in this guide, IT professionals can make informed decisions when considering the HPE 864708-591 for their server infrastructure. As technology continues to advance, investing in high-quality components like the HPE 864708-591 becomes increasingly crucial for maintaining a competitive edge in the ever-evolving landscape of server technology.

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

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.


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