IBM System x iDataPlex dx360 M2 Problem Determination And Service Manual page 193

3. Install the retention bracket.
Note: Make sure that the clips on the side of the chassis secure the retention
bracket and that the bracket presses firmly against the tabs on the power
supply.
4. Install the system-board tray in the 3U chassis (see "Installing the system-board
tray in a 3U chassis" on page 129).
5. Install the fan assembly (see "Installing the 3U chassis fan assembly" on page
150).
Clips
Tabs
Chapter 5. Removing and replacing server components
177