System information

Heat sink
Description Spare part number
Heat sink (includes replacement thermal material) 651898-001
Before removing the heat sink, follow these steps:
1. Shut down 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 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 50), and then remove the following components:
●
Service cover (see
WLAN module on page 52)
●
Keyboard (see
Keyboard on page 61)
●
Top cover (see
Top cover on page 67)
●
System board (see
System board on page 74)
●
Fan (see
Fan on page 77)
Remove the heat sink:
1. Remove the two Phillips PM2.0×4.6 screws (1) that secure the heat sink to the system board.
Component replacement procedures
79