9.
Remove the system board
(3)
by sliding it up and to the right at an angle.
Reverse this procedure to install the system board.
Heat sink
NOTE:
The system board spare part kit includes replacement thermal material.
Description
Spare part number
For use only on computer models equipped with a graphics subsystem with discrete memory
746658-001
For use only on computer models equipped with a graphics subsystem with UMA memory
746659-001
Before removing the heat sink, follow these steps:
1.
Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect the power from the computer by unplugging the power cord from the computer.
3.
Disconnect all external devices from the computer.
4.
), and then remove the following components:
a.
Service cover (see
)
b.
c.
Optical drive (see
)
d.
Keyboard (see
e.
Component replacement procedures
87
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