Name: 647894-B21 HP 4GB DDR3 1333MHz CL9 ECC RDIMM Server Memory
Brand: HP
SKU: 647894-B21
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (122 reviews)

Product Overview
The 647894-B21 HP 4GB DDR3 1333MHz CL9 ECC RDIMM Memory module delivers 4GB of DDR3 RAM with a 1333MHz clock speed and CAS Latency 9. It includes ECC support for error detection and correction, and its registered DIMM design targets server and workstation applications requiring stable memory performance.

General Information
Brand	HP

Technical Information
Memory Capacity	4GB
Memory Technology	DDR3
Module Type	RDIMM
RAM Standard	PC3-10600
Pin Count	240-Pin
Error Correction	ECC
Rank	1Rx8
Voltage	1.5V

Performance
Bus Speed	1333MHz
Bandwidth	10664 MB/s
Native Speed	1333MHz
CAS	CL9

Physical Characteristics
Weight	3.00
Condition	Refurbished

Miscellaneous
Eco Friendly	Yes
Compliance Standards	WEEE, RoHS, CE
Assembly Required	No

Product Description
The 647894-B21 HP 4GB DDR3 1333MHz CL9 ECC RDIMM Memory module is designed to enhance server and workstation systems by providing reliable and stable memory performance. It is commonly used in HP enterprise servers and compatible systems requiring error-correcting code memory. This module features registered DIMM technology coupled with ECC to detect and correct memory errors, improving system stability in critical computing environments. Its 1333MHz operating frequency with CAS Latency 9 supports balanced memory access speed and responsiveness. Key Features 4GB capacity DDR3 memory module 1333MHz memory clock speed CL9 latency for memory access timing ECC functionality for error correction Registered DIMM (RDIMM) design for server use This memory module serves a vital role in maintaining data integrity and operational consistency in enterprise-grade servers. It is suitable for IT professionals managing system upgrades or replacements in environments where memory reliability is critical.

Use Cases
This memory module is typically used in HP server and workstation environments where ECC and registered memory are required to ensure data integrity and system stability. It supports workloads that demand consistent memory performance under continuous operation. How It's Used: Upgrading memory capacity in HP enterprise servers Replacing faulty or outdated server memory modules Supporting virtualization and database workloads in servers Enhancing system stability in 24/7 operational environments Deploying in environments requiring ECC for error correction In operational contexts, this module helps maintain memory reliability and reduces risks of data corruption. It fits into server systems that utilize registered ECC memory to provide error-resilient performance for critical applications.

FAQ's
What type of memory is the 647894-B21? The 647894-B21 is a 4GB DDR3 registered DIMM (RDIMM) memory module with ECC support designed for servers and workstations. What is the operating frequency of this HP memory module? This memory module operates at a clock speed of 1333MHz, suitable for systems supporting DDR3 1333MHz speeds. What does CL9 latency mean on this memory? CL9 refers to the CAS Latency of 9 clock cycles, indicating the delay time between memory access request and data availability. Is the 647894-B21 compatible with non-HP systems? Compatibility depends on the system's support for DDR3 1333MHz ECC registered DIMMs; HP typically designs this module for their servers. Does this module support error correction? Yes, the 647894-B21 supports ECC (Error-Correcting Code) to detect and correct common types of internal data corruption. What is the difference between RDIMM and UDIMM? RDIMM (Registered DIMM) includes a register that buffers memory commands, commonly used in servers for stability, unlike UDIMM which is unbuffered and typical in desktops.

647894-B21 HP 4GB DDR3 1333MHz CL9 ECC RDIMM Server Memory

Product Overview

General Information

Technical Information

Performance

Physical Characteristics

Miscellaneous

Product Description

Use Cases

FAQ's