Dell Dimension 3000 - Manual (Page 16)

Connecting Drive Cables
When you install a drive, you connect two cables—a DC power cable and a data cable—to the back of the drive and to the system board. Some drives may
also have an audio connector; one end of the audio cable will attach to the drive connector and the other will attach to the system board.
Drive Interface Connectors
Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other
connector.
When connecting an IDE cable, ensure you align the colored stripe with the pin 1 connector. When disconnecting an IDE cable, grasp the colored pull tab and
pull until the connector detaches.
Power Cable Connector
Hard Drive
1. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.
2. Follow the procedures in Before You Begin.
3. Remove the computer cover .
Removing a Hard Drive
1. Disconnect the power and data cables from the drive and from the system board.
2. Remove the hard drive bracket from the computer:
a. Remove the bracket-securing screws for the hard drive.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
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.