Dell P175G Owner's Manual page 89

Figure 60. Removing the system board
Steps
1. Remove the six screws (M2x4) securing the I/O daughterboard bridge connector board in place.
2. Remove the single screw (M2x2) screw securing the WLAN module bracket in place.
3. Remove the two screws (M2x2) securing the display cable bracket on the system board.
4. Disconnect the WLAN Main and Aux antenna from the WLAN module.
5. Remove the WLAN module bracket from the computer.
6. Remove the display cable bracket from the computer.
7. Remove the I/O daughterboard bridge connector board from the computer.
NOTE: When reinstalling the I/O daughterboard bridge connector board align the connector so that the arrows etched
on the connector are pointed upward towards the heat sink and fan assembly.
NOTE: When reinstalling the I/O daughterboard bridge connector board secure the six screws (M2x4) in sequential
order (1 > 2 > 3 > 4 > 5 > 6) marked on the FPC.
8. Disconnect the (1) camera cable, (2) display cable, (3) Click pad flexible flat cable, and (4) USH daughterboard flexible flat
cable (for models shipped with a USH daughterboard) from the system board.
9. Remove the two screws (M2x2) and three screws (M2x4) securing the system board in place.
10. Remove the system board from the computer.
NOTE:
● For Latitude 7450 laptop models with a 5G WWAN card, if replacing the system board, peel off the CPU absorber
sticker and transfer it over to the new system board.
● For Latitude 7450 2-in-1 models with WLAN/WWAN configuration, if replacing the system board, peel off the CPU
absorber sticker and transfer it over to the new system board.
11. Carefully lift and remove the system board away from the palm-rest and keyboard assembly.
Removing and installing Field Replaceable Units (FRUs) 89