3. Lift the system board (4), and then remove it (5).
Reverse this procedure to install the system board.
Fan and heat sink assembly
Description Spare part number
Fan and heat sink assembly
For 14" products with integrated graphics 840662-001
For 15" products with integrated graphics 840732-001
For 15" products with high-quality integrated graphics (select products only) 920191-001
IMPORTANT: Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the fan and heat sink, follow these steps:
1. Shut down the computer.
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 following components:
a. Service door (see Service door on page 37).
b. Remove the battery (see Battery on page 38)
Component replacement procedures 59
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