HP EliteDesk 800 G4 Disassembly Instructions Manual page 10

Step 39 De-screwed from the main PCBA (solder side),
use tool #1
Step 41 Cut-off and remove the biggest electrolyte
capacitor(C1), use tool #2
EL-MF877-00
Template Revision B
PSG instructions for this template are available at
Step 40 Pull-off the connectors/housings
EL-MF877-01
Page 10