I have a 21.5 inch iMac, mid 2011 model. It has been running slow so I decided to buy some extra memory from crucial.com. On their website it says that you can install 32gb of ram on my model and so I went ahead and bought it and have just installed it. Only after installing it did I have the idea of seeing what it says on the Apple website (yes, backwards thinking, I know) and on the Apple website it says the max for my model is 16gb. The question is, now I have 32gb, as advised by Crucial, should I just leave 32gb in my machine, or could it damage my Mac? I appreciate I can call Crucial and they'll sort it out, but I'm interested to know what the implications are of over-speccing the computer. Thanks!