Heat Sink - HP ProBook 4540s Maintenance And Service Manual

Heat sink

All heat sink spare part kits include replacement thermal material.
Description
For use in 4540s models:
Heat sink for use in models with UMA graphics and a removable processor
Heat sink for use in models with discrete graphics and a removable processor
Heat sink for use in models with UMA graphics and the processor soldered to the system board
Heat sink for use in models with discrete graphics and the processor soldered to the system
board
For use in 4440s/4441s models:
Heat sink for use in models with discrete graphics and a removable processor
Heat sink for use in models with UMA graphics and a removable processor
Heat sink for use in models with discrete graphics and the processor soldered to the system
board
Heat sink for use in models with UMA graphics and the processor soldered to the system board
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 battery (see
5. Remove the following components:
a. Bottom door (see
b. Keyboard (see
c. Heat shield (see
d. Fan (see
Remove the heat sink:
1. Position the computer upside-down.
2. To remove the discrete heat sink, in the order indicated, loosen the six captive Phillips screws
(1) that secure the heat sink to the system board.
Battery on page
Bottom door on page
Keyboard on page
Heat shield on page
Fan on page 75)
55).
58).
70)
73)
Component replacement procedures
Spare part number
683489-001
683490-001
712920-001
712919-001
683655-001
683656-001
713376-001
713377-001
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