okay,i think i must upgrade my Computers,it's a 7 years old machine,my old motherboard only support 4 GB maximum of RAM and i think it's waste a money if only buy a DDR2 RAM and this memory cannot applied if i buy a new motherboards only support DDR3,it's completely needed buy a new motherboard and processor,Can you suggest me motherboard Intel / AMD in the range of $ 60-80 ??,BTW thanks for all your greetings,sorry if I'm out off topic in this thread