HP xw9400 Service And Technical Reference Manual page 87

4. Release the two card guide latches (1), pivot the card guide toward the system board (2), and lift
it out of the chassis (3).
Figure 4-26
5. Remove the fan from the card guide by releasing the two latches and applying outward pressure
on the card guide while lifting the fan away.
Figure 4-27
To install the front fan:
1. Place the fan in the card guide with the fan label facing into the card guide, and the fan protector
screen facing outward.
NOTE
2. Thread the front fan cable through the slot in the card guide.
ENWW
Removing card guide
Removing fan from card guide
Ensure that the fan blows toward the rear of the chassis.
Removing and replacing components 79