Dell OptiPlex 740 - Manual (Page 153)

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Drives
Drives
Your computer supports:
l One SATA hard drive
l One floppy drive or Media Card Reader
l One SATA optical drive
General Installation Guidelines
1. Connect a SATA hard drive to the connector labeled "SATA0" on the system board (see System Board Components ).
2. Connect the SATA optical drive to the connector labeled "SATA1" 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.
Drive Interface Connectors
Interface connectors are keyed for correct insertion.
Power Cable Connectors
1 FlexBay for floppy drive or Media Card Reader 2 optical drive 3 hard drive
Serial ATA Connector
1 interface cable connector 2 interface connector
NOTICE: Inserting a cable incorrectly prevents the drive from operating and could damage the controller, the drive, or both.