remove those connectors from the jusb header, don't need those yet. in that picture the connector from your case's front panel isn't connected to the header under the 24pin atx power header.
also, you do have the i3-6100 cpu installed right?
lastly... compared to my msi motherboard, your cmos battery is the opposite direction to mine. the plus sign on the top of the cmos battery needs to be spun 180 degrees, so that it is on the opposite end of the release latch... this could be your problem, check on your board, but dont power up until you see if that is how it's supposed to be oriented on that board.