Hi, I am about to buy new ram or memory for my comp. The question is if I have this ----> A-DATA 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 .... Can I buy any other brand or memory for my computer? Does it still have to be the same brand or have the same specs like this ---> DDR3 1333 (PC3 10666)? I have a p55 board that supports i think up to 12 or 16 gb. Was wondering if any brand or ram could mix together and still work. I am also running win 6 64bit ultimate. Thanks..