Dell Dimension 5000 - Manual (Page 29)

3. Disconnect the power and data cables from the back of the floppy drive.
4. Remove the floppy drive by sliding and holding the drive latch release downward. Then, slide the drive out of the computer.
Installing a Floppy Drive
1 power cable
2 data cable
NOTE: If you are installing a PCI Express x16 card, this card may cover the floppy-drive connectors. Remove this card before connecting the floppy-drive
cables.
1 sliding plate lever
2 sliding plate
3 floppy drive
NOTE: In the event the replacement or new floppy drive does not have the shoulder screws, use the screws located within the drive panel insert.