Dell Precision T3400 (Late 2007) - Manual (Page 203)

Adding and Replacing Parts
203
6 Connect a power cable to the hard drive and to the power supply.
7 Connect the serial ATA cable to the back of the drive and to the SATA
connector on the system board.
Removing an Optional Third Hard Drive (Desktop Computer)
1 If you are replacing a hard drive that contains data that you want to keep,
back up your files before you begin this procedure.
2 Follow the procedures in "Before You Begin" on page 143.
3 Remove the computer cover (see "Removing the Computer Cover" on
page 145).
4 Remove the front panel (see "Removing the Front Panel" on page 154).
5 Disconnect the power cable from the back of the hard drive and from the
power supply.
1 sliding-plate lever 2 optional fourth hard drive
1
2