This might be a stupid question, but here goes. My sister is coming to town to buy a new MB in August and I am going to upgrade the RAM for her. I want to have the RAM ahead of time and ready to install, but on the off-chance that the machine that she gets has Montevina and not Penryn, will there be any difference in the type of RAM that it will need? From what I've read, DDR2 RAM should be replaced by DDR3 in Nehalem, but I haven't found anything about Montevina. I just want to be sure I buy the right stuff and not get stuck with RAM that she can't use. Thanks!