Whenever I try to turn on my pc normally from a state of being completely off, the psu clicks and the lights flash as it tries to turn on but just flashes the lights on the mobo. However, whenever I remove all of the cables coming from the system to the psu and plug them back, and go to turn it on, it works fine. Also my system is an i5-8600k, gtx 1060 6gb, 16gb of ddr4 ram, and a cooler master 750w gold psu. Oddly enough, my system refuses to even turn with the other working psu I have, which is a 1200w cooler master platinum. Why is this happening?