Fans
Description Spare part number
Left fan (includes cable) 942843-001
Right fan (includes cable) 942842-001
Before removing the fans, 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 29).
5. Disconnect the battery cable from the system board (see Battery on page 31).
Remove the right fan:
1. Release the system board shielding (1) that covers the infrared sensor board cable and connector.
2. Release the webcam/microphone module cable (2) from the retention clip built into the right fan.
3. Disconnect the right fan cable (3) from the system board.
4. Release the zero insertion force (ZIF) connector (4) to which infrared sensor board cable is connected, and
then disconnect the infrared sensor board cable from the system board.
5. Detach the infrared sensor board cable (5) from the system board. (The infrared sensor board cable is
attached to the system board with double-sided adhesive.)
6. Remove the Phillips M2.0×5.2 screw (6) and the Phillips M2.0×2.8 screw (7) that secure the right fan to
the keyboard/top cover.
Component replacement procedures 35
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