Dell A51261139 2GB DDR3-1066MHz RDIMM 2Rx8 CL7 Memory

Product Description

The Dell A51261139 is a 2GB DDR3 Registered DIMM (RDIMM) memory module, specifically engineered for use in enterprise-level Dell server and workstation environments. Operating at a frequency of 1066MHz, which corresponds to a PC3-8500 speed rating, this module provides a balance of capacity and performance suitable for memory-intensive applications. The RDIMM form factor includes onboard registers that buffer data signals between the memory controller and the DRAM chips, reducing electrical load and improving system stability, especially in systems with a high number of memory modules. This particular module features a 2Rx8 configuration, indicating it is dual-rank with each rank utilizing x8 (8-bit) DRAM chips. Dual-rank modules can offer performance benefits in certain scenarios by allowing the memory controller to access data from different ranks concurrently. The CAS Latency (CL) is rated at 7, meaning there are 7 clock cycles between the memory controller issuing a read command and the data becoming available. This CL7 timing, combined with the 1066MHz speed, defines the module's responsiveness. As a registered DIMM, the A51261139 inherently supports Error-Correcting Code (ECC) functionality. ECC memory detects and corrects single-bit errors on the fly, significantly enhancing data integrity and system reliability, which is critical for servers and workstations handling sensitive data or running mission-critical operations. This module is a direct replacement or upgrade component for compatible Dell systems requiring DDR3 RDIMMs.