Dell OptiPlex GX280 - Manual (Page 333)

Connect CD/DVD drives to the connector labeled "IDE" on the system board . Serial ATA hard drives should be connected to
the connectors labeled "SATA0," SATA1," "SATA2," or "SATA3" on the system board .
IDE Drive Addressing
When you connect two IDE devices to a single IDE interface cable and configure them for the cable select setting, the device
attached to the last connector on the interface cable is the master or boot device (drive 0), and the device attached to the
middle connector on the interface cable is the slave device (drive 1). See the drive documentation in your upgrade kit for
information on configuring devices for the cable select setting.
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
IDE Drive
Connector
Serial ATA
Connector
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.
Power Cable Connector