Dell Dimension 8300 - Manual (Page 16)

5. Connect the power and hard-drive cables to the drive.
6. Check all connectors to be certain that they are properly cabled and firmly seated.
7. Close the computer cover .
8. Connect your computer and devices to electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Adding a Second Hard Drive
1. Check the documentation for the drive to verify that it is configured for your computer.
2. Shut down the computer through the Start menu.
3. Turn off any attached devices and disconnect them from their electrical outlets.
4. Disconnect any telephone or telecommunication lines from the computer.
5. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
6. Open the computer cover .
7. Remove the two green plastic rails from the inside of the hard-drive bay by gently pulling the rails up and out of the bay.
8. Attach the rails to the hard drive using the two screws attached to the rails.
Ensure that the rail tabs are positioned at the back of the hard drive.
9. Remove the first hard drive from the upper bay and install it in the lower bay:
a. Disconnect the power and the hard-drive cables from the back of the first hard drive.
b. Press in the two green rail tabs and pull the first hard drive out of the upper bay.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently
cushion it.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Do not install any drive into the lower hard-drive bay until you have removed the green drive rails from the inside of the hard-drive bay.