problems with the EZPLUG

problems with the EZPLUG
Hi, everyone, I'm having problems with the EZPLUG connector of an asus rampage apex vi, when I plugged in the 7 molex chip from the source, the computer does not turn on, I have a seasonic of 850, two gtx 980 matrix, two ssd m.2 , 1 disc and coolers. What can cause the motherboard to short?
Video of problem : https://youtu.be/pJ9OLD3p_64

It will do that if you dont have a single rail PSU sometimes, and you dont need it for two 980. Just dont use it and carry on.