This specification for the HP EliteBook EliteBook 820 G4 Notebook PC (ENERGY STAR) Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the EliteBook 820 G4 Notebook PC (ENERGY STAR) boardview and EliteBook 820 G4 Notebook PC (ENERGY STAR) schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum....