Name: 128277-B21 Compaq 128MB SDRAM PC133 133MHz ECC Registered 168-Pin DIMM Memory Module
Brand: Compaq
SKU: 128277-B21
Price: 44.00 USD
Availability: InStock
Rating: 4.8 (129 reviews)

Product Overview
The Compaq 128MB 133MHz ECC 168-Pin RDIMM Memory module provides essential memory expansion for compatible servers. It features 128MB of capacity with ECC error correction, operates at a clock speed of 133MHz, and utilizes a 168-pin RDIMM form factor, matching certain Compaq server requirements.

General Information
Brand	Compaq

Technical Information
Memory Technology	SDRAM
Module Type	RDIMM
RAM Standard	PC133
Pin Count	168-Pin
Error Correction	ECC
Voltage	3.3V

Performance
Bus Speed	133MHz
Bandwidth	1064MB/s
Native Speed	133MHz

Physical Characteristics
Weight	3.00
Condition	Refurbished

Miscellaneous
Assembly Required	No

Product Description
The Compaq 128MB 133MHz ECC 168-Pin RDIMM Memory module is designed to provide reliable memory expansion for compatible server systems. It operates at 133MHz and includes ECC (Error-Correcting Code) to detect and correct common memory errors, which is critical in maintaining system stability in enterprise environments. This RDIMM (Registered DIMM) module uses a 168-pin configuration, commonly found in older server platforms, making it suitable for specific Compaq server models requiring this memory type. Key Features 128MB memory size for basic expansion needs 133MHz operating frequency ensuring synchronous operation ECC functionality to maintain data integrity 168-pin RDIMM form factor for server compatibility Manufactured by Compaq, aligning with system specifications This memory module serves as a practical component for upgrading or maintaining legacy Compaq server systems. Its ECC capability supports environments where error correction is necessary to avoid data corruption during operations. Though the capacity is modest by modern standards, it fits specific roles in older servers requiring this exact specification.

Use Cases
This memory module is typically used in legacy Compaq server systems requiring 168-pin RDIMM memory modules with ECC support. It is suitable for environments where data integrity and error correction are important, such as small to medium business servers or specialized enterprise setups relying on older hardware. How It's Used: Memory expansion in compatible Compaq server platforms Maintaining or repairing older server equipment Supporting ECC memory needs for data integrity in server environments Enabling synchronous 133MHz memory operations in legacy systems Replacing faulty 168-pin RDIMM modules in existing servers The module plays a specific role in sustaining older infrastructure by providing necessary memory capacity and error-checking features. It ensures continued operation in systems designed for this memory type without introducing compatibility issues.

FAQ's
What servers use 128277-B21 memory? The 128277-B21 module is designed for certain Compaq servers that require 168-pin RDIMM memory running at 133MHz with ECC support. It is not compatible with non-Compaq or newer server models that use different memory standards. What does ECC mean in this memory module? ECC stands for Error-Correcting Code. This memory automatically detects and corrects common types of data corruption, enhancing system stability and reliability in server environments. Is 128MB capacity sufficient for modern servers? This 128MB module is intended for older server systems and is generally inadequate for modern servers, which typically require much larger memory capacities for current workloads. What is the significance of 168-pin RDIMM? The 168-pin RDIMM form factor specifies the physical connector and electrical interface type of the memory, ensuring compatibility with specific server motherboards designed for this configuration. Can I mix this memory with non-ECC modules? Mixing ECC memory with non-ECC modules is generally not recommended as it can cause system instability or prevent the system from booting, especially in servers that rely on ECC features. Does this memory require special installation? Installation involves inserting the module into the appropriate 168-pin RDIMM slot on a compatible Compaq server motherboard, ensuring proper seating and alignment without additional configuration.