Just looked into upgrading the RAM on my wife's laptop. It currently has 4gb of RAM and runs woefully slow. Figured I'd max out the RAM to see if that helps out some. It's a MBP 2.3 i5 13" (early 2011). I have put in my serial number on the Apple support site and it states that it has a max upgrade of 8gb. I went to the Crucial website and they say 16gb. Any clarification and help would be appreciated. Thanks in advance!