Heat sink
Description Spare part number
Heat sink L05348-001
Follow these steps to remove the heat sink:
1. Shut down the computer. If you are unsure whether the computer is o or in hibernation, turn the
computer on, 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 top cover (see Top Cover on page 14).
5. Remove the fans (see Fans on page 16).
6. Remove the antenna (see Antennas on page 18).
7. Remove the battery (see Battery on page 19).
8. Remove the SSD (see Solid state drive on page 20).
9. Loosen eight captive retaining screws according to the numbered order stamped on the heat sink (1).
10. Lift and remove the heat sink (2).
Reverse this procedure to install the heat sink.
NOTE: When installing the heat sink, be sure to examine the areas where the components and the heat sink
come into contact to make sure the areas are properly covered by the thermal pads and paste.
Component replacement procedures 21
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