Hynix HYMP351E72AMP4J-C4 AB-A 4GB DDR2-533MHz ECC Registered CL4

Product Description

This Hynix HYMP351E72AMP4J-C4 module is a 4GB DDR2 Registered DIMM (RDIMM) with Error-Correcting Code (ECC) capabilities. DDR2 memory, while an older standard, is still found in many legacy server and workstation systems. The RDIMM format includes an onboard register that buffers command and address signals, reducing the electrical load on the memory controller and enabling higher memory capacities and improved system stability. This makes it suitable for systems that require more memory than unbuffered DIMMs can reliably support. The module operates at a frequency of 533MHz, corresponding to a PC2-4200 designation, and features a CAS Latency (CL) of 4. The CL value represents the number of clock cycles it takes for the memory to respond to a request for data, with lower numbers generally indicating faster performance. The 2Rx8 configuration signifies that the module is dual-rank, with each rank consisting of eight memory chips, each with an x8 data width. Dual-rank modules can offer performance benefits in certain system architectures by allowing the memory controller to access data from different ranks in an interleaved fashion. The inclusion of ECC is a critical feature for server environments, as it allows the memory subsystem to detect and correct single-bit errors and detect multi-bit errors. This significantly enhances system reliability and data integrity, preventing crashes and data corruption that can occur with unbuffered memory. The HYMP351E72AMP4J-C4 is a dependable choice for maintaining the stability and performance of older server and workstation platforms.