Hello, everybody, I am in the process of building a PC for my friend and it is all assembled and I turn on the power supply and the motherboard turns on then off repeatedly. The power LED turns on then off the on and keeps doing that until I shut it off. Sometimes if it is shut off long enough and I turn the power supply on and the motherboard lights will come on for a second then turn back off. I have verified that all of the cables are connected and are not loose and still no luck. Any help is appreciated.
Specs:
ASUS Z370 Prime-A
Intel Core i7-8700k
ASUS RTX 2080
16GB of Corsair Vengeance RAM
EVGA 750W PSU
