To avoid some issues like system instability, reset and shutdown caused by energy-insufficient power supply,we suggest you should use the following calculator to figure out the power supply that best suit for your need. The result is a recommended figure added by the components you choose, and you should buy a power with higher wattage.
Your recommended minimum power supply is :
The Wattage listed is the maximum peak wattage of each component. The resulted total amount is measured from all devices running at peak utilization. It is important to bear in mind that this amount will never be reached under normal operation.