HP ProDesk 680 G4 PCI Microtower Business Disassembly Instructions Manual page 11

Figure 39 Disconnect fan connector and inlet connector.
Figure 41 Remove AC inlet & Fan screw
EL-MF877-00
Template Revision B
PSG instructions for this template are available at
Figure 40 Remove PCB1 screw
Figure 42 Heat the solder of Electrolytic Capacitors
greater than 2.5cm in diameter or height and remove it.
EL-MF877-01
Page 11