Calculate the power of your Power supply
Choosing the right power supply
When building up your PC it is quite difficult to determine the power supply to be used( this will depend on the components and the configuration used).
Asus offers a simulator to help you choose correctly according to your components.
Note that the information is only indicative in nature.
Links
Click on the link below:
http://support.asus.com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us