First of all...im not really good with ram. I have no clue what CAS timmings are and what "x-x-x-x" means (when talking about CAS). Anyway...most motherboards support DDR PC3200 Ram..but I can't find any AMD motherboards that support DDR2/PC2 ram. My friend said that only some "LGA775 motherboards" (which is an intel motherboard) support DDR2. But I see people with AMD CPU's use DDR2 ram. How does this all work? A good explanation would really be appreciated.