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Drives
Dell™OptiPlex™745User'sGuide
Hard Drive
Replacing a Hard-Drive Fan (Only Required for Certain Configurations)
Optical Drive
Floppy Drive and Media Card Reader
Your computer supports:
l One SATA (serial ATA) drive
l One floppy drive or Media Card Reader
l One SATA optical drive
General Installation Guidelines
Connect a SATA hard drive or optical drive to a connector labeled "SATA" on the system board (see System Board Components).
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
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 certain cables—SATA 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.
