Dell Precision T7400 (Late 2007) - Manual (Page 227)

Adding and Replacing Parts 227
General Drive Installation Guidelines
When you install a drive, you connect two cables—a DC power cable from
the power supply and a data cable—to the back of the drive. The other end of
the data cable will connect to either an expansion card or to the system board.
Most connectors are keyed for correct insertion.
General Drive Installation Guidelines
NOTICE: If metal shields are present in your computer configuration, they must be
installed at all times while your computer is in use or your computer may not
function properly.
When you install a drive, you connect two cables—a DC power cable from
the power supply and a data cable—to the back of the drive. The other end of
the data cable will connect to either an expansion card or to the system board.
Most 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.
Power Cable Connectors
When connecting a SAS or SATA cable, hold the cable by the connector at
each end and press firmly into the connector. When disconnecting a SAS or
SATA cable, hold the cable by the connector at each end and pull until the
connector detaches.
1 power cable 2 power input connector
1
2