Dell XPS 720 H2C (Mid 2007) - Manual (Page 137)

Removing and Installing Parts
137
Installing the Card Fan
NOTICE:
Ensure the fan cable is correctly routed through the opening in the lower-right corner of the fan cage.
1 With the fan power cable oriented downward, align the rubber grommets in the fan with the holes in
each corner of the fan cage, then pull the grommets through until they snap into place.
NOTE:
Airflow direction and orientation are shown on the side of the fan.
1 card fan 2 rubber grommet (4) 3 fan cage
2
1
3