Dell GX620 User Guide - Page 116
Drive Interface Connectors, Most interface connectors are keyed for correct insertion; that is
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www.dell.com | support.dell.com Drive Interface Connectors IDE Drive Connector 1 2 3 Serial ATA Connector 2 3 1 colored stripe on IDE cable 2 interface cable connector 3 interface connector 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 IDE cable-serial ATA 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. NOTICE: When you connect an IDE 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. 116