DDR memory is designed to work with specific motherboards and processors. Double Data Rate (DDR) memory is a type of computer memory that is designed to work with specific motherboards and processors. DDR memory is not backward compatible with Single Data Rate (SDR) memory, which means that DDR memory cannot be used in a motherboard or processor that only supports SDR memory. DDR memory has evolved over the years, and newer versions of DDR memory are not compatible with older motherboards and processors.