Updating from mac 10 1 5 to what to email a girl on a dating site
They can be identified by model numbers A1311 and A1312.
The memory upgrade procedure in these 21.5-Inch and 27-Inch i Mac models is easy, but different lines use different memory types and there are differences between official and unofficial RAM capacity as well.
Precise identification can require a bit of work, too.
Identification Help If you're not sure which Aluminum i Mac you have, these 21.5-Inch and 27-Inch models can be most simply identified externally via EMC Number -- located inconveniently under the "foot" supporting the computer -- and in software by Model Identifier for the purpose of upgrading the RAM.
However, the type of 204-pin SO-DIMM and the actual maximum capacity varies.
If the i Mac is running OS X 10.7 "Lion" or later, you will need to click the "System Report" button after clicking "More Info..." as well.
These models can be uniquely identified when combined with a secondary identifier like display size, processor speed and/or processor type.To locate the model identifier in software, select "About This Mac" under the Apple Menu on your computer and click the "More Info..." button.