Fan - HP Probook 450 G9 Maintenance And Service Manual

Remove the touchpad:
1. Disconnect the system board cable from the ZIF connector on the touchpad (1).
2. Remove the four Phillips M2.0× 2.0 screws (2) that secure the touchpad to the computer.
3. Remove the two Phillips M1.6 × 2.0 screws (3) that secure the touchpad to the computer.
4. Remove the touchpad from the computer (4).
Reverse this procedure to install the touchpad.

Fan

To remove the fan, use this procedure and illustration.
Table 6-5 Fan description and part number
Description
Fan for use in 42 W models
Fan for use in 51 W models
Before removing the fan, follow these steps:
1. Prepare the computer for disassembly (see
2. Remove the bottom cover (see
3. Disconnect the battery cable from the system board (see
Remove the fan assembly:
1. Remove display cable from the clips on the side of the fan (1).
2. Remove the three Phillips 2.0 × 4.0 screws (2) that secure the fan to the computer.
54 Chapter 6 Removal and replacement procedures for authorized service provider parts
Preparation for disassembly on page
Bottom cover on page 40).
40).
Battery on page 50).
Spare part number
M21718-001
N00095-001