HP EliteBook 725 G2 Notebook PC Maintenance and Service Guide

Heat sink
Description Spare part number
Heat sink (includes replacement thermal material) 765605-001
Before removing the heat sink, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 38), and then remove the following components:
a. Battery (see Battery on page 40)
b. Hard drive (see Hard drive on page 42)
c. Keyboard (see Keyboard on page 52)
d. Top cover (see Top cover on page 58)
Remove the heat sink:
1. Turn the top cover upside down with the front toward you.
2. Detach the heat sink shroud (1) from the fan. (The heat sink shroud is attached to the fan with double-
sided adhesive.)
3. Following the 1 through 4 sequence stamped into the heat sink, loosen the four Phillips captive screws
(2) that secure the heat sink to the system board.
4. Remove the heat sink (3).
NOTE: Due to the adhesive quality of the thermal material located between the heat sink and the
system board components, it may be necessary to move the heat sink from side to side to detach it.
Component replacement procedures 71