IBM 43R177102 1GB DDR2-667MHz FB-DIMM 2Rx8 CL5 Memory

Product Description

This IBM 43R177102 is a 1GB DDR2 Fully Buffered DIMM (FB-DIMM) memory module, engineered for use in IBM servers and high-end workstations. It operates at a speed of 667MHz, providing a substantial increase in data transfer rates compared to standard DDR2 DIMMs. The FB-DIMM technology incorporates an Advanced Memory Buffer (AMB) chip on each module, which serializes data and buffers command and address signals. This design significantly reduces the electrical load on the memory controller, enabling higher memory densities and improved system stability in multi-processor environments. The module's 2Rx8 configuration indicates it is dual-rank, with each rank utilizing 8-bit data prefetch. This configuration can offer performance benefits in systems that can effectively utilize both ranks. Furthermore, the inclusion of ECC (Error-Correcting Code) is a critical feature for server environments, as it provides data integrity by detecting and correcting memory errors on the fly, thereby preventing data corruption and system downtime. The CL5 latency timing specifies the number of clock cycles required for the memory to respond to a request. While DDR2 FB-DIMMs are an older technology, they were essential for scaling memory capacity and performance in servers of their era. The 43R177102 is a specific component designed to meet the stringent requirements of IBM's server platforms, ensuring compatibility and reliable operation. It is an ideal replacement or upgrade module for systems that utilize this specific type of memory.