The two most important factors for a performance memory module are speed and stability. PQI’s memory module’s operating voltage is up to 1.9V at CL5, dramatically reduces the information transfer time therefore enhancing system performances. PQI’s DDR2-1000 modules are fully complaint to JEDEC DDR2 (Double Data Rate 2) 240Pin Unbuffered-DIMM standards and are compatible with Intel 945 / 955 chipset motherboards supporting the DDR2-667 memory specifications.