Apple Xserve (Early 2008) DIY Procedure for Fan Array with Foam - Manual (Page 6)

Xserve (Late 2006/Early 2008) Fan Array Replacement Instructions 6
Lower the airflow duct into position on the logic board. 4.
Note: When installing the airflow duct, be sure to route both the front panel board cable and
the backplane-to-logic board I/O cable inside the channel under the left side of the duct.
Ensure the airflow duct fits flush all over, and does not protrude above the level of the 5.
enclosure.
Note: Be careful when working with any black foam pieces that are part of the airflow duct
or the logic board.
Tighten the five Phillips screws that fasten the airflow duct to the fan array, in the order 6.
shown, to prevent the duct from warping. Do not overtighten the screws.