HP Pavilion x360 Convertible PC (model numbers 15-bk100 through 15-bk199 and 15-bk000 through 15-bk099) - Maintenance and Service Guide

Fan/heat sink assembly
Description Spare part number
For use only on computer models equipped with a graphics subsystem with discrete video memory 863970-001
For use only on computer models equipped with a graphics subsystem with UMA video memory 862523-001
Before removing the fan/heat sink assembly, 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 unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the base enclosure (see Keyboard/top cover on page 28).
5. Disconnect the battery cable from the system board (see Battery on page 33).
6. Disconnect the WLAN module antenna cables from the WLAN module (see WLAN module on page 37).
7. Remove the system board (see System board on page 40).
Remove the fan/heat sink assembly:
1. Turn the system board upside down with the front toward you.
2. Disconnect the fan cable (1) from the system board.
NOTE: The number of screws used to secure the fan/heat sink assembly to the system board varies by
computer model. Computer models equipped with a graphics subsystem with discrete memory require
eight screws. Computer models equipped with a graphics subsystem with UMA memory require
four screws.
3. Loosen the seven or four Phillips PM2.0×6.5 captive screws (2) that secure the fan/heat sink assembly
to the system board.
44 Chapter 5 Removal and replacement procedures