Dell OptiPlex GX260 User Guide - Page 133
Power Cable Connector, Drive Interface Connector
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Connecting Drive Cables When you install a drive, you connect two cables-a DC power cable and an interface cable-to the back of the drive. Power Cable Connector 1 Power cable 2 Power input connector Drive Interface Connector 1 Interface connector 2 Colored stripe on cable 3 Interface cable 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 the cable) 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. NOTICE: When you connect an interface cable, do not place the colored stripe away from pin 1 of the connector. Reversing the cable prevents the drive from operating and could damage the controller, the drive, or both. Hard Drive