Dell XPS 720 H2C (Mid 2007) - Manual (Page 135)

Removing and Installing Parts
135
Fans
Removing the Card Fan
1 Follow the procedures in "Before You Begin" on page 85.
2 Remove the computer cover (see "Removing the Computer Cover" on page 86).
3 Remove any full-length expansion cards (see "Removing PCI and PCI Express Cards" on page 95).
4 Disconnect the fan cable from the FAN_CAGE connector on the system board (see "System Board
Components" on page 89).
5 Press down on the two tabs along the top of the fan cage, then slide the fan cage back and out of the
cage housing.