Hardware Reference Guide HP ProOne 400 G1 All-in-One

9. Remove the three screws securing the fire enclosure shield to the chassis, and then rotate the
shield out of the chassis.
Figure 2-22 Removing the fire enclosure shield
The battery can now be seen to the right of the fan.
Figure 2-23 Locating the battery
10. To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
26 Chapter 2 Hardware repair and upgrade