I'm building a pc at the moment. The motherboard is an asus z370p,processor is i7 7700k 4.2mhz,graphics card is zotac gtx1070 and the usual bits. Problem i'm having is that when i connect the power to the cpu socket on the board i get nothing. Instant shutdown. Yet when its not plugged it starts(no disply etc.) 2 processors and its the same. Tried it with a600w and 500w psu. Any ideas??