Specifications

Heat sink assembly
Description Spare part number
Heat sink assembly 741971-001
Before removing the heat sink assembly, 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 27).
5. Remove the following components:
a. Top cover (see
Top cover on page 29)
b. Power button board
c. Display assembly
d. Speaker assembly
e. Hard drive (see
Hard drive on page 42)
f. System board
Remove the heat sink assembly:
1. Position the system board upside-down.
2. Loosen the 3 capture screws (1) securing the heat sink to the system board.
52 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts