Dell Optiplex-620 User Manual page 205

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Dell™ OptiPlex™ GX620
User's Guide
Drives
Drives
Your computer supports:
One serial ATA hard drive
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One optional D-module CD/DVD drive, second hard drive, or floppy drive in the module bay
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General Installation Guidelines
NOTE: For information on installing D-module drives, see the documentation that came with your optional device.
Serial ATA hard drives should be connected to the connector labeled "SATA0" on the system board.
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.
Drive Interface Connectors
Serial ATA Connector
1 interface cable connector
2 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 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
System Board Power Serial ATA Power
Connector Connector