Making Sure Your MacBook Pro Recognizes the New Memory
After installing additional memory in your MacBook Pro, check whether the computer recognizes the new memory.
To check the computer’s memory:
1Start up your MacBook Pro.
2When you see the Mac OS X desktop, choose Apple () from the menu bar and then choose About This Mac.
For a detailed breakdown of the memory installed in your computer, open System Information by clicking More Info, and then click Memory.
If your MacBook Pro doesn’t recognize the memory or doesn’t start up correctly, confirm that the memory you installed is compatible with your MacBook Pro and that it’s installed correctly.