Heat sink
NOTE: The heat sink 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 927920-001
For use only on computer models equipped with a graphics subsystem with UMA memory 927919-001
Before removing the heat sink, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 30), and then remove the following components:
a. Battery (see Battery on page 33)
b. Solid-state drive (see Solid-state drive on page 34)
c. WLAN module (see WLAN module on page 35)
d. Fans (see Fans on page 38)
e. System board (see System board on page 47)
Remove the heat sink:
NOTE: Steps 1 and 2 apply to computer models equipped with a graphics subsystem with discrete memory.
See Steps 3 through 6 for heat sink removal information for computer models equipped with a graphics
subsystem with UMA memory.
1. Loosen the six Phillips PM2.0×6.2 captive screws (1) that secure the heat sink to the system board.
52 Chapter 5 Removal and replacement procedures
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