HP 14-bf000, Maintenance And Service Manual

Page: 48 / 90

Heat sink
NOTE: The heat sink spare part kit includes replacement thermal materials.
Description Spare part number
Heat sink for use in models with UMA graphics 930604-001
Heat sink for use in models with discrete graphics 930605-001
Before removing the heat sink, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off 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 first 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 27 ).
5. Remove the battery (see Battery on page 29 ).
To remove the heat sink:
1. Discrete graphics models: In the order indicated on the heat sink, remove the five Phillips PM2.0×3.0
screws (1) that secure the heat sink to the system board.
2. Remove the heat sink from the system board (2).
● Thermal paste is used on the heat sink (1) and graphics chip (2), as well as on the heat sink (3) and
processor (4).
NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink and
the system board components each time the heat sink is removed. Replacement thermal material
is included with the heat sink, processor, and system board spare part kits.
40 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts