5.
Remove the system board (4).
Reverse this procedure to install the system board.
Heat sink
Description
Spare part number
Heat sink (includes replacement thermal material)
854752-001
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.
Remove the bottom cover (see
), and then remove the following components:
a.
Battery (see
b.
Solid-state drive (see
c.
WLAN module (see
d.
System board (see
Remove the heat sink:
1.
Following the 1, 2, 3 sequence stamped into the heat sink, remove the three Phillips PM2.0×3.0
screws (1) that secure the heat sink to the system board.
Component replacement procedures
39