Apple Xserve (Early 2008) DIY Procedure for Enclosure - Manual (Page 77)

Xserve (Late 2006/Early 2008) Drive Interconnect Backplane Replacement Instructions 11
Tighten the five Phillips screws that fasten the airflow duct to the fan array, in the order 3.
shown, to prevent the duct from warping. Do not overtighten the screws.
Replacing the Apple Drive Modules
Slide the first Apple drive module into its bay until it is firmly seated. Then press the handle 1.
in flush with the front panel.
Repeat for all other installed drive modules. 2.
Closing the Xserve
Replace and secure the cover. 1.
Slide the Xserve back into the rack, and tighten the front thumbscrews to secure the Xserve 2.
in the rack.
If the server case was locked, use the enclosure key to lock the security lock on the front 3.
panel.
Warning: Never turn on the server unless all of its internal and external parts are in place
and it is closed. Operating the server when it is open or missing parts can damage it or
cause injury.