HP ProDesk 405 G1 Microtower Maintenance And Service Manual page 66

4.
Remove the speaker cable from the cable tie on the base pan.
NOTE:
5.
From the outside front of the chassis, remove the Torx T15 screw that secures the speaker to the
front of the chassis.
56 Chapter 5 Removal and replacement procedures: Microtower
System board appearance may vary.