PCH heat sink
Description
Spare part number
PCH heat sink
699248-001
IMPORTANT:
Make special note of each screw and screw lock size and location during removal
and replacement.
Before removing the PCH heat sink, follow these steps:
1.
Shut down the computer.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery on page 34
).
5.
Remove the keyboard (see
Keyboard on page 38
).
6.
Remove the top cover (see
Top cover on page 42
).
7.
Remove the hard drive (see
Hard drive on page 46
).
8.
Remove the USB board (see
USB board/audio jack on page 49
).
9.
Remove the WLAN (see
WLAN module on page 50
).
10.
Remove the system board (see
System board on page 53
).
Remove the PCH heat sink:
1.
Turn the system board upside down, with the front toward you.
2.
Remove the two Phillips screws
(1)
and lift off the PCH heat sink
(2)
.
Reverse this procedure to install the PCH heat sink onto a replacement system board.
64
Chapter 4 Removal and replacement procedures
