Name: 39M5866 IBM 2GB DDR2-667MHz PC2-5300 ECC Registered RDIMM CL5 2Rx8 1.8V 240-Pin Memory Module
Brand: IBM
SKU: 39M5866
Price: 67.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The IBM 2GB DDR2-667MHz PC2-5300 ECC Registered RDIMM is a memory module tailored for server environments needing dependable error correction and stable operation. It fits into systems requiring registered memory for enhanced signal integrity and supports workloads where data accuracy is vital.

General Information
Brand	IBM
Part Number	39M5866
Alternate Part Number	39M5866-08-CT

Technical Information
Memory Capacity	2GB
Memory Technology	DDR2
Module Type	RDIMM
RAM Standard	PC2-5300
Pin Count	240-Pin
Error Correction	ECC Registered
Rank	2Rx8
Voltage	1.8V

Performance
Bus Speed	667 MHz
Bandwidth	5300 MB/s
Native Speed	667 MT/s
CAS	CL5

Physical Characteristics
Weight	0.50
Condition	Refurbished

Miscellaneous
Eco Friendly	Yes

Product Description
This IBM 2GB DDR2-667MHz PC2-5300 memory module is built for enhancing server performance and stability. It’s commonly used in enterprise server environments where error correction and reliability are critical. IT professionals and system administrators often find this module useful when upgrading or maintaining server memory capacity. The ECC Registered DIMM design helps detect and correct memory errors, reducing data corruption risks, making it ideal for data centers and mission-critical systems. Its 240-pin layout ensures compatibility with many server motherboards supporting DDR2-667 memory. Key Features Supports 2GB capacity ideal for balanced memory upgrades Equipped with ECC to maintain data integrity under load Registered DIMM type stabilizes signal quality in multi-module setups Designed to run efficiently at 1.8V lowering power consumption Compatible with a wide range of IBM and compatible server boards This memory module is often found in rack servers and blade systems where uptime and error-free operation are essential. It plays a key role in maintaining smooth processing for databases, virtualization, and other demanding server tasks. By using this RDIMM, systems can avoid downtime caused by memory errors and improve overall reliability.

Use Cases
This IBM 2GB DDR2-667MHz PC2-5300 ECC Registered RDIMM is designed for server systems that prioritize data integrity and require stable memory performance under continuous workloads. It is especially suited for IT departments managing enterprise servers, storage arrays, or virtualization hosts where error correction and reliability are critical. How It's Used: Installed in enterprise rack servers supporting database management systems to maintain data accuracy during high I/O operations. Deployed within virtualization hosts in data centers to enhance memory reliability when running multiple virtual machines. Used in storage clusters for distributed file systems where error-correcting memory prevents data corruption over prolonged uptimes. Integrated into remote office servers that require stable performance with limited on-site maintenance capabilities. Employed in high-availability computing environments demanding registered memory for improved signal integrity and system stability. By incorporating ECC registered memory modules like this IBM RDIMM, organizations can reduce memory-related failures, supporting consistent server uptime and operational efficiency. Its low-voltage operation and multi-rank design also help optimize power consumption and scalability in demanding IT infrastructures.