Product Overview of the HP 647895-B21
The 647895-B21 4GB DDR3 SDRAM DIMM is a genuine memory module manufactured by HP, specifically designed for use in HP Proliant servers. It is a Single Rank Ecc Registered module with a memory speed of 1600MHz, and it has a CAS latency of CL11. In this article, we will provide a detailed explanation of the features and specifications of this memory module, including its compatibility, performance, and usage in HP Proliant servers.
DDR3 SDRAM DIMM
DDR3 stands for Double Data Rate 3, and it is a type of synchronous dynamic random access memory (SDRAM) used in computers and servers. DIMM stands for Dual In-Line Memory Module, and it is the most common form factor used for desktop and server memory modules.
The 647895-B21 4GB DDR3 SDRAM DIMM is a registered module, which means it has a register (or buffer) that helps to improve memory stability and performance. It is also ECC (Error-Correcting Code) registered, which adds an additional layer of data integrity and reliability by detecting and correcting errors in the memory.
Memory Capacity and Speed
The 647895-B21 memory module has a capacity of 4GB, which means it can store 4 gigabytes of data. This makes it suitable for various computing tasks, such as running multiple applications simultaneously, handling large databases, and processing complex calculations.
The memory speed of this module is 1600MHz, which refers to the maximum rate at which data can be transferred to and from the module. A higher memory speed generally results in better performance, as it allows for faster data access and retrieval. However, it's important to note that the memory speed is dependent on the capabilities of the server or computer system in which the memory module is installed. If the system does not support a memory speed of 1600MHz, the module will operate at the maximum supported speed of the system.
CAS latency, also known as CL, is a measure of the delay between when a memory module receives a request for data and when it is able to provide that data. It is an important performance factor for memory modules, as lower CAS latency values indicate faster data access.
The 647895-B21 memory module has a CAS latency of CL11, which means it takes 11 clock cycles to provide requested data after receiving a request. While lower CAS latency values, such as CL9 or CL10, may offer slightly better performance, CL11 is still considered to be within the standard range for DDR3 memory modules.
Single Rank and Registered ECC
The 647895-B21 memory module is a Single Rank module, which means it has memory chips on only one side of the module. Single Rank modules are typically less expensive than Dual Rank modules, which have memory chips on both sides of the module, but they may have slightly lower performance in certain situations that require high memory bandwidth.
This memory module is also registered and ECC (Error-Correcting Code) enabled. A registered module has a register (or buffer) that helps to improve memory stability and performance by reducing the electrical load on the memory controller. ECC is a type of error correction technology that can detect and correct single-bit errors in the memory, helping to improve data integrity and system reliability.
Genuine HP Memory
The 647895-B21 memory module is manufactured by HP, a leading provider of computer hardware and technology solutions. Genuine HP memory modules are specifically designed and tested to ensure compatibility, reliability, and performance in HP Proliant servers.
General Information about the HP 647895-B21
- Manufacturer: HP
- Part Number or SKU# 647895-B21
- Product Type: Memory (RAM)
- RAM Type: PC3-12800
- Product Name: 4GB DDR3 SDRAM Memory Module
- Storage Capacity: 4GB
- Memory Technology: DDR3 SDRAM
- Number Of Modules: 1 X 4GB
- Bus Speed: 1600mhz DDR3-1600/PC3-12800
- Data Integrity Check: Ecc
- Signal Processing: Registered
- Cas Latency Timings: Cl11
- Platform Support: Proliant Server
- 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 - Dl160 Gen8
- Proprietary HP Proliant Server - Dl360e Gen8
- Proprietary HP Proliant Server - Dl380e Gen8
- Proprietary HP Proliant Server - Dl560 Gen8
- Proprietary HP Proliant Server - Ml350e Gen8
- Proprietary HP Proliant Server - Ml350p Gen8
- Proprietary HP Proliant Server - Sl230 Gen8
- Proprietary HP Proliant Server - Sl230s Gen8
- Proprietary HP Proliant Server - Bl420c Gen8
- Proprietary HP Proliant Server - Bl460c Gen8
- Proprietary HP Proliant Server - Bl660c Gen8
- Proprietary HP Proliant Server - Ws460c Gen8
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.
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