HP EliteDesk 800 G2 Desktop Mini, HP EliteDesk 705 G2 Desktop Mini, HP ProDesk 600 G2 Desktop Mini, HP ProDesk 400 G2 Desktop Mini, HP MP9 G2 Retail System - Maintenance and Service Guide

Secondary fan (EliteDesk 800 and MP9 models only)
HP EliteDesk 800 G2 and HP MP9 G2 Retail System models include a secondary fan installed under the hard
drive.
1. Prepare the computer for disassembly (Preparation for disassembly on page 20).
2. Remove the top cover (Top cover on page 21).
3. Remove the hard drive (Hard drive on page 23).
4. Disconnect the fan plug from the system board (1).
5. Remove the two screws securing the secondary fan (2).
6. Lift the fan out of the chassis (3).
To install the secondary fan, reverse the removal procedure.
26 Chapter 4 Removal and replacement procedures – desktop mini (DM) chassis