The board has the following power supply connectors:
Processor core power – a 2 x 4 connector. This connector provides power directly to the processor voltage regulator and must always be used. Failure to do so will prevent the board from booting
From the TPS:
Page: 11 - 12 explains to you - Connector T is the one for the CPU.
A good power supply is recommended definitely, depending on the components that you are using. (at least an ATX V2.2 or higher)