I just set up a intel 8700k with 16 gigs of ram in a z370xp sli with a gtx 1070 water cooled by thremaltake 360 mm rad. when i tried to boot for the first time case fans spun and psu fan spun then quickly turned off no life from mobo what so ever , i have a 8 pin cpu power connector in instead of the 2 4 pin cpu connectors. what could be the issue