How do I find the installed RAM layout in my MacBook without opening it up? I have a mid-2009 MacBook with 4 GB of RAM installed in it and I'd like to upgrade it to 8 GB of RAM. In order to do that I have to figure out what the installed RAM configuration is so I can determine what it is I need to order.

How do I see the installed RAM configuration in the MacBook without opening it up and actually looking inside?
You can see the current RAM configuration in a visual overview by:


Going to the  menu
About this Mac
more info
memory




If you'd like further detail, open the System Report... from the Overview tab of About this Mac. This can also be accessed by holding ⌥ while the  menu is open, then selecting System Information.