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. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of certain cables—SATA cables do not use
a colored stripe) goes to the pin-1 end of the connector. The pin-1 end of a connector on a board or a card is usually indicated by a silk-screened "1" printed
directly on the board or card.
Power Cable Connectors
Connecting and Disconnecting Drive Cables
When removing a cable with a pull-tab, grasp the colored pull-tab and pull until the connector detaches.
When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.
Optical Drive
Removing an Optical Drive
1. Follow the procedures in Before You Begin.
2. Pull up on the drive-release latch and slide the drive towards the back of the computer. Then, lift up to remove the drive from the computer.
NOTICE: Inserting a cable incorrectly prevents the drive from operating and could damage the controller, the drive, or both.
NOTE: If you will be operating your computer without an optical drive or a 3.5-inch device (floppy drive or Media Card Reader) installed, the appropriate
drive-bay insert must be installed in place of the drive. Contact Dell if you need a drive-bay insert.