Fans
NOTE: The left and right fans are spared separately.
Description Spare part number
Left fan (includes cable) 931576-001
Right fan (includes cable) 931577-001
Before removing the fans, follow these steps:
1. Turn o 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 the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
3. Disconnect all external devices from the computer.
4. Remove the following components:
a. Base enclosure (see Base enclosure on page 45)
b. Battery (see Battery on page 38)
c. Optical drive (see Optical drive on page 48)
Remove the fans:
1. Disconnect the fan cables (1) from the system board.
2. Remove the fan cables (2) from the routing path clips.
3. Remove the two Phillips screws (3) securing the fans to the computer.
Component replacement procedures 53
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