Gateway Profile 6 Reference Manual page 58

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CHAPTER 4: Upgrading Your Computer
Remove the processor fan by following the instructions
in "Replacing the processor fan" on page
Loosen the four screws that secure the heat sink to the
processor, then remove the heat sink. The screws are
captive screws, so they will not fall out of the heat sink.
Disconnect 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.)
You can also mark the cables with tape labels to simplify
reconnecting cables later.
37.
Heat sink screws
Heat sink screws