Hi, I'm creating a new discussion because no one can answer my question. So I have a MBP 13" i5 @2.4 GHz. (it's a late 2011 model) Yes, I've bought 1600MHz DDR3 RAM and I've seen on the internet that the mac MHz the i5 can take is 1333MHz, but if I put the 1600MHz RAM in my i5 it will probably just Clock Down to 1333MHz? I'm I correct? I hope so because otherwise I've just wasted $150.