Dell Precision T5400 (Late 2007) - Manual (Page 209)

Adding and Replacing Parts 209
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 data cable, hold the cable by the connector at each end
and press firmly into the connector. When disconnecting a data cable, hold
the cable by the connector at each end and pull until the connector detaches.
1 power cable 2 power input connector
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2