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Heat sink
Description Spare part number
Heat sink 697915-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal
and replacement.
Before removing the 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 20).
5. Remove the keyboard (see
Keyboard on page 24).
6. Remove the top cover (see
Top cover on page 28).
7. Remove the hard drive (see
Hard drive on page 32).
8. Remove the USB board (see
USB board/Audio jack on page 34).
9. Remove the WLAN (see
WLAN module on page 35).
10. Remove the system board (see
System board on page 38).
Remove the heat sink:
1. Turn the system board upside down, with the front toward you.
2. Remove the heat sink.
a. Loosen the captive screws (1) and lift the heat sink (2) from the system board.
46 Chapter 4 Removal and replacement procedures