HP ProBook 450 G1 Maintenance And Service Manual page 81

When replacing the system board, be sure to remove the following components from the defective system
board and install on the replacement system board:
● Memory module (see
●
WLAN/Bluetooth module (see
● WWAN module (see
● Processor (see Processor on page
Remove the system board:
1. Position the computer upright with the front toward you.
2. Disconnect the display cable (1) from the system board.
3. Disconnect the battery connector cable from the system board (2).
4. Remove the 3 Phillips PM2.5×4.0 screws (3) that secure the system board and the optical drive
extension board to the computer.
5. Lift the right side of the system board up at an angle (1).
Memory modules on page
WLAN/Bluetooth combo card on page
WWAN module on page 48)
79)
44)
46)
Component replacement procedures 69