HP C240 - Manual (Page 163)

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Changing Your Workstation’s Hardware Configuration
Installing an EISA, PCI, or GSC Option Board
11 Rotate the fan back into place, as shown in Figure 55. Push it into the rear panel
firmly until the clip snaps into place.
Figure 55 Securing the Fan
12 Replace the main tray assembly as described in “Replacing the Main Tray As-
sembly” earlier in this appendix.