HPE 835955-B21 16GB DDR4 Memory
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HPE 835955-B21 16GB RAM DDR4 SDRAM 2666mhz Pc4-21300 Cl19 Bulk

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Part Number#: 835955-B21
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Short Description:
835955-B21 16 Gigabytes(GB) (1X16GB) 2666 Megahertz (MHz) Pc4-21300 Cl19 Ecc Registered Dual Rank X8 1.2v Double Data Rate 4 (DDR4) SDRAM 288-pin Rdimm Memory Module Proliant for Server | Made by HPE | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Product overview for the HPE 835955-B21

In the dynamic world of server technology, the HPE 835955-B21 16GB DDR4 memory module stands out as a crucial component designed to enhance the performance of Proliant servers. This comprehensive guide aims to provide a detailed understanding of the key features and specifications of this memory module, shedding light on its significance for server optimization.

Overview HPE 835955-B21

HPE, or Hewlett Packard Enterprise, is a renowned name in the realm of IT infrastructure solutions. The 835955-B21 is a specific model of DDR4 memory module, tailored for compatibility with Proliant servers. Let's break down the alphanumeric nomenclature to better comprehend its features.

  • Capacity: 16GBThe 16GB DDR4 indicates the amount of data the memory module can store and process. In a server environment, having an ample amount of RAM is crucial for smooth and efficient operation, especially when handling resource-intensive tasks.
  • Speed: 2666MHzThe 2666MHz speed denotes the module's data transfer rate. In simple terms, a higher speed implies that data can be accessed and processed more quickly, contributing to overall system responsiveness and efficiency.
  • Type: DDR4 SDRAMDDR4 (Double Data Rate 4) Synchronous Dynamic Random-Access Memory is the fourth generation of DDR RAM technology. DDR4 offers improvements in speed, reliability, and power efficiency compared to its predecessors, making it an ideal choice for modern server environments.
  • ECC RegisteredECC (Error-Correcting Code) is a type of memory that can automatically detect and correct common types of data corruption. This is particularly important in server applications where data integrity is paramount. The term "Registered" indicates that the module uses a register to temporarily hold data before it is transferred, contributing to stability and reliability.
  • Dual Rank x8" Dual Rank" refers to the organization of memory chips on the module. It signifies that there are two sets of memory chips on the module, allowing for increased data access and transfer rates. "x8" indicates the width of the memory banks, specifying how many bits can be accessed simultaneously.
  • Voltage: 1.2VThe 1.2V voltage is a measure of the electrical power required for the module to operate. Lower voltages contribute to energy efficiency and reduced heat generation, which is crucial for maintaining optimal operating conditions in server environments.
  • Form Factor: 288-pin RDIMMThe form factor specifies the physical dimensions and layout of the memory module. In this case, the 288-pin RDIMM (Registered Dual In-Line Memory Module) configuration is designed for compatibility with Proliant servers, ensuring seamless integration into the system.
Significance of Proliant Servers

Understanding the technical specifications of the HPE 835955-B21 16GB DDR4 memory module is crucial, but it's equally important to grasp how these features translate into tangible benefits for Proliant servers.

Performance Boost

The 2666MHz speed coupled with the dual-rank configuration ensures that data can be accessed and processed at a rapid pace. In server environments, where multiple processes are running simultaneously, a higher performance level can significantly contribute to overall system responsiveness.

Reliability and Data Integrity

The ECC feature plays a pivotal role in maintaining data integrity. In a server setting, even a minor data corruption can have serious consequences. The ECC capability of the 835955-B21 helps detect and correct errors, ensuring that the data stored and processed by the server is accurate and reliable.

Seamless Integration

The 288-pin RDIMM form factor is specifically designed for Proliant servers. This ensures that the memory module seamlessly integrates into the server infrastructure without compatibility issues. The ease of integration simplifies the upgrade process for server administrators, allowing them to enhance system performance with minimal hassle.

Energy Efficiency

The 1.2V voltage of the memory module aligns with contemporary trends in IT infrastructure towards energy efficiency. Lower voltage not only reduces power consumption but also contributes to heat reduction. This is particularly advantageous in server rooms where maintaining optimal temperature is critical for preventing hardware failures and ensuring continuous operation.


Ensuring that a memory module is compatible with the existing server infrastructure is paramount. Here's a brief guide on installing the HPE 835955-B21 16GB DDR4 memory module and ensuring compatibility with Proliant servers.


  • Power Down the Server: Before attempting to install any hardware components, it's crucial to power down the server and disconnect it from the electrical source.
  • Locate the Memory Slots: Identify the memory slots on the server's motherboard. These are typically DIMM slots located near the CPU.
  • Open the Server Chassis: Carefully open the server chassis according to the manufacturer's guidelines. This may involve removing screws or latches.
  • Ground Yourself: To prevent static electricity discharge, ground yourself by touching a metal surface before handling the memory module.
  • Align and Insert: Align the notches on the memory module with the corresponding notches on the DIMM slot. Gently press down on both ends of the module until it clicks into place.
  • Secure with Latches: If the server has latches to secure the memory modules, ensure that they click into place to hold the module securely.
  • Close the Chassis: Close the server chassis securely, ensuring that all screws or latches are properly engaged.
  • Power Up the Server: Reconnect the server to the power source and power it up. The system should automatically recognize the new memory module.

Compatibility Checks

Before purchasing and installing the HPE 835955-B21 16GB DDR4 memory module, it's essential to perform compatibility checks to ensure seamless integration.

  • Refer to Server Documentation: Consult the documentation provided by the server manufacturer to identify compatible memory modules and any specific guidelines for.
  • Check Current Memory Configuration: Examine the existing memory configuration of the server. Ensure that the new module aligns with the server's specifications regarding capacity, speed, and form factor.
  • Verify Firmware and BIOS Compatibility: Ensure that the server's firmware and BIOS are up-to-date and compatible with the new memory module. Manufacturers often release updates that address compatibility issues.
  • Consider Future Expansion: If planning to add multiple memory modules, consider the future expansion capacity of the server. Ensure that the new modules are compatible with potential future upgrades.
General Information about the HPE 835955-B21
  • Manufacturer: HPE
  • Model Number or SKU# 835955-B21
  • Type: Memory (RAM)
  • RAM Type: PC4-21300
  • Product Name: 16GB DDR4 SDRAM Memory Module
Technical Information for the HPE 16GB DDR4 RAM
  • Storage Capacity: 16GB
  • Number Of Modules: 1 X 16GB
  • Memory Technology: 16GB DDR4 SDRAM
  • Bus Speed: 2666MHZ DDR4-21300/PC4-2666V
  • Data Integrity Check: ECC
  • Signal Processing: Registered
  • Cas Latency Timings: CL19
  • Rank Features: Dual Rank X8
  • Form Factor: 288-pin Rdimm
Compatibility of 16GB Memory Kit
  • HPE ProLiant BL Series: BL460c Gen10, DL360 Gen10, DL360 Gen10 Base, DL360 Gen10 Entry, DL360 Gen10 High Performance, DL360 Gen10 Low,
  • DL360 Gen10 Performance, DL380 Gen10, DL380 Gen10 Base, DL380 Gen10 Entry, DL380 Gen10 High Performance, DL380 Gen10 Performance, DL560 Gen10, DL560 Gen10 Base, DL560 Gen10 Entry, DL560 Gen10 Performance, DL580 Gen10, DL580 Gen10 Base, DL580 Gen10 Entry, DL580 Gen10 Performance Servers
  • HPE ProLiant ML Series:ML350 Gen10, ML350 Gen10 Base, ML350 Gen10 Entry, ML350 Gen10 Performance, ML350 Gen10 Solution, ML350 Gen10 Sub-Entry Servers
  • HPE ProLiant XL Series:XL170r Gen10, XL190r Gen10, XL230k Gen10 Compute Tray, XL450 Gen10 Servers
  • HPE Synergy 480 Gen10 Base Compute Module, 480 Gen10 Compute Module, 480 Gen10 Entry Compute Module, 480 Gen10 Performance Compute
  • Module, 480 Gen10 Premium Backplane Compute Module, 480 Gen10 Standard BackPlane Compute Module, 480 Gen10 w/o Drives Compute Module, 660 Gen10 Base Compute Module, 660 Gen10 Compute Module, 660 Gen10 Entry Compute Module, 660 Gen10 Performance Compute Module and 660 Gen10 Premium Compute Module

Finally, the HPE 835955-B21 16GB DDR4 memory module is a powerful and reliable component designed to enhance the performance of Proliant servers. Its impressive specifications, including 16GB capacity, 2666MHz speed, ECC registered functionality, and 1.2V voltage, make it a valuable addition to server environments where optimal performance and data integrity are paramount.

Server administrators looking to boost the capabilities of their Proliant servers can confidently consider the HPE 835955-B21 for its seamless integration, energy efficiency, and the performance benefits it brings to data-intensive applications. Following the and compatibility guidelines ensures a smooth upgrade process, allowing servers to operate at their full potential.

As technology continues to advance, memory modules like the HPE 835955-B21 play a crucial role in keeping server infrastructure up-to-date and capable of meeting the demands of evolving IT landscapes. Whether used in data centers, cloud environments, or other server deployments, this DDR4 memory module stands as a testament to HPE's commitment to delivering reliable and high-performance solutions for the ever-expanding world of enterprise computing.

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

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