HP ProDesk 400 G4 Disassembly Instructions Manual page 7

Figure 25 Remove the battery from the system board
Figure 27 Remove front panel from chassis
Figure 29 Use T-15 screwdriver to loose the screws of
speaker and remove it
EL-MF877-00
Template Revision B
PSG instructions for this template are available at
Figure 26 Use T-15 screwdriver to loose the screws of MB
from board
Figure 28 Remove MB from chassis
Figure 30 Use PH1 screwdriver to loose the screws of
system fan and remove it
EL-MF877-01
Page 7