I just wanted to know the general way of identifying the ddr, ddr2 and ddr3 memory types. I have to show which are what to others so can't be using cpu-z program. I have to show them externally and there are no label on any of the memory. I know that ddr has 184 pins and ddr2/3 has 240. I found from youtube that there's a mark at the end of the pin. So as I looked through the memory, I saw there was a number 93 written in memory which I told was ddr to some of my friends. And similarly ddr2 had 120 written so I said it was a ddr2 ram. I know its awkward but I need to know. Is there any way to find which memory is which? Thanks in advanced.