Compaq Evo Workstation w4000 - Convertible Minitower Hardware Reference Manual page 17

Product Features
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1–12
10. Remove the subpanel as described in the section "Removing
Bezel Blanks" and reposition it with the bezel blanks in the
proper orientation for the minitower configuration.
CAUTION: Hold the subpanel straight when you pull it away from the
front bezel. Pulling the subpanel away at an angle could damage the
pins that align it within the front bezel.
11. Remove the chrome logo plate from the subpanel and reposition
it (rotate it 180°) with the logo plate in the proper orientation for
the minitower configuration, then snap it back into the subpanel.
Changing from a Desktop to a Minitower Configuration
12. Replace the subpanel, front bezel, and the computer access panel.
13. Reconnect the external equipment.
Hardware Reference Guide