HP 497767-S21 8GB Memory PC2-6400
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497767-S21 HP 8GB 800MHz PC2-6400 Ecc Reg DDR2 SDRAM DIMM Bulk

Availability: In Stock
Part Number#: 497767-S21
List Price was: $38.23
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New Bulk Pack

Short Description:
497767-S21 8GB 2X4GB 800MHz PC2-6400 ECC Registered DDR2 SDRAM 240-Pin Dimm HP Memory Kit Proliant for Server | Made by HP | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

Product Information

The HP 497767-S21 is a type of computer memory specifically designed for the Proliant server series. This memory kit features two 4GB memory modules, totaling 8GB of storage capacity. It operates on DDR2 SDRAM technology and uses a DIMM form factor. This memory kit is manufactured by HP, one of the leading computer hardware manufacturers in the world. In this article, we will take a closer look at the technical details of this memory kit.

Memory Specifications

Capacity: The HP 497767-S21 memory kit has a total storage capacity of 8GB. This capacity is sufficient for most server applications, and it allows the server to run multiple processes simultaneously without any lag or performance issues.

Memory Type: The HP 497767-S21 memory kit uses DDR2 SDRAM technology. DDR2 SDRAM is the second generation of Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM). This technology offers significant improvements over its predecessor DDR SDRAM, including higher transfer rates, lower power consumption, and improved performance.

Memory Form Factor: This memory kit has a DIMM form factor. DIMM stands for Dual In-line Memory Module. DIMM is a type of computer memory module used in desktop and server computers. DIMMs have separate electrical contacts on each side of the module, allowing for more memory modules to be installed on a single motherboard.

Memory Speed: The HP 497767-S21 memory kit has a clock speed of 800MHz. The clock speed of a memory module determines how fast data can be read and written to the memory. A higher clock speed means that data can be transferred faster, which results in improved system performance.

Memory Latency: The HP 497767-S21 memory kit has a CAS latency of 5. CAS latency is the delay between the time a memory controller requests data from memory and when the data is actually available. A lower CAS latency means that the memory module can respond to requests faster, resulting in improved system performance.

Memory Rank: The HP 497767-S21 memory kit is a dual-rank memory kit. Memory rank refers to the number of separate memory banks on a memory module. A single-rank memory module has one memory bank, while a dual-rank memory module has two memory banks. Dual-rank memory modules offer slightly better performance than single-rank memory modules, but they are typically more expensive.

Memory Error Correction: The HP 497767-S21 memory kit uses Error Correcting Code (ECC) technology. ECC is a type of memory technology that can detect and correct errors that occur during data storage and retrieval. This technology is particularly useful in server environments, where data integrity is critical.


The HP 497767-S21 memory kit is designed for use with the Proliant server series. It is compatible with a wide range of Proliant servers, including the Proliant DL360 G5, Proliant DL380 G5, and Proliant ML370 G5. It is important to note that this memory kit is not compatible with other server series or desktop computers.


Installing the HP 497767-S21 memory kit is a straightforward process. First, ensure that the server is powered off and unplugged from the power source. Locate the memory module slots on the server's motherboard. The number and location of memory module slots may vary depending on the server model. Gently insert the memory modules into the slots, making sure that the modules are properly aligned with the slots. Press down firmly on the memory modules until they click into place. Finally, power on the server and check the BIOS settings to ensure that the memory kit is recognized.

Main Information about the HP 497767-S21

  • Manufacturer: HP
  • Part Number or SKU# 497767-S21
  • Type: Memory (RAM)
  • Device Type: PC2-6400
  • Product Name: 8GB DDR2 SDRAM Memory Module

Technical Information

  • Storage Capacity: 8GB
  • Memory Technology: DDR2 SDRAM
  • Number Of Modules: 2 X 4GB
  • Memory Speed: 800mhz DDR2-800/PC2-6400
  • Data Integrity Check: Ecc Chipkill
  • Signal Processing: Registered
  • Cas Latency Timings: Cl6
  • Platform Support: Proliant Server
  • Form Factor: 240-Pin Dimm

Physical Characteristics

  • Dimensions (W X D X H) : 8.89 X 19.81 X 1.91 Cm (3.5 X 7.8 X 0.75 In)
  • Weight: 0.45 Kg (1 Lb)


  • Proprietary HP Proliant Server - Dl165 G5
  • Proprietary HP Proliant Server - Dl165 G6
  • Proprietary HP Proliant Server - Dl180 G5
  • Proprietary HP Proliant Server - Dl185 G5
  • Proprietary HP Proliant Server - Dl365 G5
  • Proprietary HP Proliant Server - Dl385 G5
  • Proprietary HP Proliant Server - Dl385 G6
  • Proprietary HP Proliant Server - Dl585 G5
  • Proprietary HP Proliant Server - Dl585 G6
  • Proprietary HP Proliant Server - Dl785 G5
  • Proprietary HP Proliant Server - Dl785 G6
  • Proprietary HP Proliant Server - Bl465c G5
  • Proprietary HP Proliant Server - Bl465c G6
  • Proprietary HP Proliant Server - Bl495c G5
  • Proprietary HP Proliant Server - Bl495c G6
  • Proprietary HP Proliant Server - Bl685c G5
  • Proprietary HP Proliant Server - Bl685c G6

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

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.

PC2-6400 Ram

Do you have a computer with a motherboard configured for the DDR2 memory modules? Chances are you want to get the best out of your system in terms of performance. If all of these catch your fancy, then you are just at the right spot for top-quality PC2 modules with unbeatable performance. Allhdd.com is home to some of the best PC2-6400 modules, compatible with some of the well-known brands. Our collection includes the 4GB and the 8GB variants.

The PC2 6400 Memory Module

Improving your system's performance can be achieved by simply adding more memory to your PC. The PC2 6400 RAM series presents the ideal memory modules for stability and speed. The PC2-6400 (240-Pin DDR2 800 SDRAM) can conveniently move your system into the fast lane. The DDR2 PC2-6400 (generally regarded as the DDR2-800) module is a DDR2 memory device for use in motherboards featuring a front-side bus of 400MHz. The number "6400" indicates the maximum amount of data the memory can transfer per second which is 6400 Megabytes, and is the module's bandwidth. DDR2-800 is backward-compatible for DDR2-533 and DDR2-667.

Memory Clock Speed

The PC2-6400 memory chips can work at 800 MHz. It is otherwise referred to as the RAM's memory clock speed. The RAM's speed does not change how fast the CPU can go, even when hyper-threaded or overclocked. However, it can slow the CPU down if there is ample space in the RAM or not.

I/O bus clock

The I/O bus clock refers to half the bus transfer speed. The PC2-6400 (DDR2 800) has a bus clock of 400MHz.

Considerations Before Investing in a Memory Module

Even though the 240-Pin DDR3 SDRAM is an excellent memory module for your system, it remains that there are a few things to keep in mind before you click the "Add to Cart" button. Not all memory is best suited for your system; there is a little homework to do before investing in RAM. Here are some factors to consider.

RAM Form-Factor

First up is the RAM form factor. There are two main types of RAM form factors: the DIMM form factor for desktop computers and the SO-DIMM for laptops. Thus, you should buy a SO-DIMM type of RAM if you have a laptop PC and vice versa.

DDR generation

This is crucial because earlier generation DDR memory is not compatible with motherboards built to work with newer generation DDR memory and the other way round. DIMM slots in motherboards are explicitly designed to support a particular memory generation. Consequently, you can't install DDR2 memory in a motherboard featuring DDR3 DIMM slots.

Amount of RAM

Power users will need more RAM to handle highly-demanding applications than conventional system users. This is needless to say that you should consider the system's workload before choosing a RAM. The right amount of RAM on the computer facilitates better performance and the capacity to sustain various applications.

Get the high-performing PC2-6400 RAM module here on Allhdd.com at the right price and peace of mind.


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For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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