HP EliteBook 745 G2

Heat sink
NOTE: The heat sink spare part kit includes replacement thermal material.
Description Spare part number
For use only on HP EliteBook 745 models 768790-001
For use only on HP EliteBook 755 models 773959-001
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 following components:
a. Service door (see
Service door on page 47)
b. Battery (see
Battery on page 49)
c. Fan (see
Fan on page 74)
d. Keyboard (see
Keyboard on page 58)
e. Base enclosure (see
Internal base enclosure on page 68)
Remove the heat sink:
1. Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four captive Philllips screws (1)
– (4) that secure the heat sink to the system board, and then remove the heat sink (5).
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.
ENWW Component replacement procedures 79