HP 6149B6 2GB DDR3-1600MHz ECC Unbuffered CL11 UDIMM 1R Memory Module

Product Description

The HP 6149B6 is a 2GB DDR3 Unbuffered DIMM (UDIMM) memory module, suitable for entry-level servers and workstations. It operates at a speed of 1600MHz, providing adequate performance for general computing tasks and less demanding server applications. Unbuffered DIMMs do not have an onboard register; instead, command and address signals are sent directly to the memory chips, which typically results in lower latency and cost compared to RDIMMs, but limits the total number of modules that can be installed. This module is specified as single-rank (1R), meaning it has one set of memory chips accessible at a time. While single-rank modules can sometimes offer slightly faster access times in certain scenarios, they place a higher electrical load on the memory controller compared to dual-rank modules. The CAS Latency (CL) of 11 indicates the number of clock cycles required to access a specific column of data, representing a standard timing for DDR3 memory at this speed. Although the title specifies 'Unbuffered', memory modules intended for server use, even UDIMMs, often include Error-Correcting Code (ECC) functionality. ECC helps detect and correct single-bit errors, enhancing system stability and data integrity, which is a critical requirement for server environments. This HP 6149B6 module is designed to provide reliable memory performance for systems where high capacity is not the primary concern, but stability and basic error correction are desired.