Heat sink
Table 5-11 Heat sink spare part information
Description Spare part number
Heat sink (includes replacement thermal material) L94510-001
Before removing the heat sink, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. 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.
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 35)
c. Fan (see Fan on page 38)
d. System board (see System board on page 58)
Remove the heat sink:
1. Remove the four Phillips M2.0×4.0 screws (1) that secure the heat sink to the system board.
2. Remove the heat sink (2).
Each time the heat sink is removed, thoroughly clean the thermal material from the processor component (1)
and the surface of the heat sink (2). Replacement thermal material is included with the heat sink and system
board spare part kits.
Component replacement procedures 61
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