Heat sink assembly
All heat sink assembly spare part kits include replacement thermal material.
Description Spare part number
Heat sink for use in models with UMA graphics L01085-001
Heat sink for use in models with discrete graphics L01086-001
Before removing the heat sink assembly, 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. Place the computer in “Battery Safe mode” (Battery Safe mode on page 32).
3. Disconnect all external devices connected to the computer.
4. 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.
5. Remove the following components:
a. Service doors (Service doors on page 33).
b. Hard drive (Hard drive on page 41)
c. Keyboard (Keyboard on page 44)
d. Top cover (Top cover on page 48)
e. Card reader board (Card reader board on page 59)
f. Battery (Battery on page 64)
g. System board (System board on page 67)
Remove the heat sink assembly:
1. Position the system board upside-down.
2. Discrete models: In the order indicated on the heat sink, loosen the 6 captive Phillips screws (1) that
secure the heat sink to the system board.
70 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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