Dell XPS 625 (Early 2009) - Manual (Page 24)

10. Replace the screw that secures the card fan cage to the chassis.
11. Connect the cables to the master I/O board (see Master I/O Board Components ).
12. Replace any full-length expansion cards that you removed (see Installing PCI and PCI Express Cards ).
13. Replace the computer cover (see Replacing the Computer Cover ).
14. Connect your computer and devices to electrical outlets, and then turn them on.
Replacing the Hard Drive Fan
1. Follow the procedures in Before You Begin .
2. Remove the computer cover (see Replacing the Computer Cover ).
3. Remove the card fan cage (see Replacing the Card Fan ).
4. Slide the hard drive fan cage out from behind the hard drive bays, then lift it from the computer.
1 card fan cage 2 tabs (4)
3 screw
1 hard-drive fan 2 hard-drive fan cage