Dell XPS 730x (Early 2009) - Manual (Page 49)

Replacing Fans : Dell XPS 730/730X Service Manual
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1 cage housing 2 fan cage
3 screws (2)
7. To install the card slot fan assembly, connect the fan cable to the FAN_CAGE connector on the system board (see
Master Control Board ).
8. Align the fan cage tabs with the slots in the chassis. Insert the tabs and push the cage towards the front of the chassis.
9. Screw in the fan retention screws on the front and back of the fan cage.
10. Replace any expansion cards that you removed (see Replacing a PCI/PCI Express Card ).
11. Replace the PCI card fan shroud and captive screws on top of it.
12. Replace the computer cover (see Replacing the Computer Cover ).
13. Connect your computer and devices to electrical outlets, and then turn them on.
Replacing the Processor Fan Assembly
1. Remove the card slot fan shroud (see Removing the Card Slot and Processor Fan Shrouds ).