Dell OptiPlex GXi Reference and Installation Guide ( - Page 81
Connecting Drives, Installing a Drive in a 5.25-Inch Drive Bay, DC Power Cable Connector
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Connecting Drives When installing a drive, you connect two cables- a direct current (DC) power cable and an interface cable-to the back of the drive. Your drive's power input connector (to which you connect the DC power cable) resembles the connector shown in Figure 7-4. power input connector DC power cable Figure 7-4. DC Power Cable Connector The drive's interface connector is a card-edge connector or a header connector, as shown in Figure 7-5. card-edge connector on drive header connector on drive interface cable colored strip Figure 7-5. Drive Interface Connectors When attaching the interface cable to a drive, be sure to match the colored strip on the cable to pin 1 of the drive's interface connector. For the location of pin 1 on the drive's interface connector, see the documentation that came with the drive. 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 (see Figure 7-5). Keying ensures that the pin-1 wire in the cable (indicated by the colored strip 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. CAUTION: When connecting an interface cable, do not reverse the interface cable (do not place the colored strip away from pin 1 of the connector). Reversing the cable prevents the drive from operating and could damage the controller, the drive, or both. Installing a Drive in a 5.25-Inch Drive Bay The 5.25-inch drive bays can accommodate any of the following types of half-height drives: • A diskette drive or tape drive that uses the diskette/ tape drive interface on the system board • A CD-ROM or tape drive that uses the secondary EIDE interface on the system board • A CD-ROM or tape drive that uses its own controller card NOTE: For information on configuring, connecting, and installing SCSI drives, see "Installing SCSI Devices" found later in this chapter. Installing Drives 7-3