Dell DX6000 - Manual (Page 110)

110 Installing System Components
6 Connect the optical drive cable to the back of the drive tray.
7 If not already done, connect the power and interface cables from the
optical drive to the system board connectors.
a Connect the power cable to the DVD/TBU_PWR connector on the
front of the system board below the fan bracket. See Figure 6-2 for the
location of the connector.
b Route the interface cable along the inside right wall of the chassis.
See "Cable Routing" on page 118 and Figure 3-16.
c Connect the cable to the SATA_A connector on the system board.
See Figure 6-2 for the location of the connector.
8 Close the system. See "Closing the System" on page 83.
9 Replace the bezel. See "Installing the Front Bezel" on page 82.
10 Reconnect your system and peripherals to their electrical outlets, and turn
on the system.