clutchc :
The size power supply (PSU) is based on the components attached to the board, not the board itself. The GPU and CPU will probably be the most power hungry of all the components, Those are the ones you need to use to size the PSU.
Sorry, replying to a message that was sent a year ago but I've been looking at old posts to try and figure out an answer.
What power supply would you reccommend for this build:
ASRock Fatal1ty B250 Gaming K4 LGA 1151 ATX Motherboard
GeForce GTX 1060 OC 6GB Video Card
i7 7700 Quad Core LGA 1151 3.6 GHz CPU
Corsair Vengeance LPX 16GB (2x 8GB) DDR4 3000MHz
Sorry thats a lot of stuff, don't know what is and isn't necessary but any help or suggestions would be greatly appreciated!!