I have 204 pin 1333mhz can i buy any brand as long as its 204 pin and 1333mhz and would it work in my system....here is my original question... The question i need to ask it what memory can i install into my dell alienware m15x? To be more specific what is the fastest memory possible I can have? I can only have 8gb's max, i have two RAM slots, i can only have RAM that is 1333mhz or lower and DDR3 RAM. Can anyone help me out. I would love to be able to upgrade my memory. I currently have a windows index RAM rating of 7.2 which i know is good, but is their a RAM out their that would greatly make my laptop faster. Please help me as I am new to these forums  I would very much appreciate it! PS Dell's Alienware Tech would not tell me anything about any other brand I could use even though one had said i could use corsair awhile back but they tend to push Dell memory which is obvious because this guy would not even tell me my motherboard specs or the specs of my RAM i found them myself lol. Gotta love dell. I love alienware if someone could recommend something like and alienware with better techs i would gladly buy one.