Dell Dimension XPS 50 Reference Manual page 58

3-12 Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide
5. Slide the new drive into the drive bay. Secure it to the drive cage, as shown in
Figure 3-10, with one screw on the bottom and two screws on the left side.
drive-mounting
screws (3)
6. If you are installing a controller card, configure and install it in an expansion slot
now (refer to "Expansion Card Upgrades" in Chapter 2 for instructions).
Install the card as close as possible to the drive cage.
7 . Reinstall the drive cage as described earlier in "Replacing the Drive Cage."
8. Connect a DC power cable to the drive as described earlier in "Connecting
Drives."
9. Attach the appropriate interface cable to the drive. If you installed a controller
card in step 6, attach the other end of the interface cable to the controller card
rather than the system board.