5.Place your thumbs on the two plastic tabs on the back panel of the computer.
6.Press down on the tabs and pull gently until the back panel opens.
7. Take the back panel off and set it aside.
8.Slide the logic board (the board that holds the components that make your computer work) part way out until you have access to the entire slot at the right side of the board.
sWarning: Don’t pull the board all the way out; this can damage your Macintosh. s
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