Dell PowerEdge T605 Guide De Mise En Route page 11

Installing the Power Cord Retention Bracket
Attach the power cord retention bracket on the right bend of the power
supply handle. Bend the system power cable into a loop as shown in the
illustration and attach to the bracket's cable clasp. Repeat the procedure
for the second power supply.
Plug the other end of the power cable(s) into a grounded electrical outlet
or a separate power source such as an uninterrupted power supply (UPS)
or a power distribution unit (PDU).
Turn on the System and Monitor
Press the power button on the system and the monitor (optional). The power
indicators should light. Adjust the monitor's controls until the displayed
image is satisfactory.
9
Getting Started With Your System