System Board
Removing the System Board
CAUTION: To guard against electrical shock, laceration by moving fan blades, or other unexpected injuries, always unplug your computer from the electrical outlet before opening the cover.
CAUTION: The heat sink assembly, power supply, and other components may be very hot during normal operation. Be sure that they have had sufficient time to cool before you touch them.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
1Follow the procedures in "Before You Begin" on page 97.
2Remove the computer cover (see "Removing the Computer Cover" on page 99).
3Remove any
4Remove the processor and heat sink assembly (see "Processor" on page 145).
5Remove the memory modules (see "Removing Memory" on page 111) and document which memory module is removed from each memory socket so that the memory modules can be installed in the same location after the board is replaced.
6Disconnect all cables from the system board. Note the routing of all cables as you remove them so that you can
7Remove the eight screws from the system board.
8Lift the system board up and out.
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