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3Remove all memory modules by following the directions in “Installing memory” on page 38.
4Disconnect all the power and data cables from the system board, noting their locations and orientation. (You will reconnect the cables after you install the new board.)
Tip
You can label each cable with tape to make it easier to
5Remove the four screws that secure the power supply to your computer, then slide it out of your computer.
6Remove the eight system board screws.
Screws
Screws
7Lift the system board up and out of the case.
8Align the new system board on the screw holes in the case, then secure it into the case with the screws.
9If your replacement system board does not include a processor remove the processor from the old system board by following the directions in “Replacing the heat sink and processor” on page 47, then install it and the heat sink into the new system board by following the directions in the same procedure.
10Slide the power supply back into the case, then install the four screws to secure the power supply to the case.
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