Dell 720H2C appendix

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.

NOTICE: If you are replacing a hard drive that contains data that you want to keep, back up your files before you begin this procedure.

1.Follow the procedures in Before You Begin.

2.Remove the computer cover (see Removing the Computer Cover).

3.Disconnect the power cable and the data cable from the hard drive.

1 power cable 2 data cable

4. Press the blue tabs on each side of the hard drive bracket toward each other and slide the drive up and out of the hard-drive bay.

1 blue tabs (2) 2 hard drive 3 hard drive bay

5.Ensure that all connectors are properly cabled and firmly seated.

6.Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.

7. Connect the computer and devices to electrical outlets, and turn them on.