HP ELITEBOOK 840 G4 Maintenance And Service Manual page 61

Remove the internal base plate:
1. Remove the 4 Phillips M2.0x7.0 screws (1) and the 4 broadhead Phillips M2.5x2.5 screws (2) that secure
the internal base plate to the computer.
2. Remove the 9 Phillips M2.5x5.0 screws that secure the internal base plate to the computer.
Component replacement procedures 51