As Christmas is coming i want to buy my brother some RAM for his PC. All the information i collected is that he has a MSI K9N6SGM-V ( MSI 7309 Ver 1.3 ) Motherboard. At the store they asked me for some parameters what kind of RAM i need to buy. Can someone tell me what to say to them in the store? The size or whatever is required for the RAM to work on the Motherboard.