Please help! MoBo recognize only 4 cards

[richichi]

Hello guys i own a H110 BTC PRO +, this is the first time im experiencing this - i have 7 cards installed, all risers are 100% working and tested, gpus are all brand new and also tested, mobo new also, tried moving slots, tried gen 2 gen 1, auto, flashed bios from website, i just dont know what to do anymore to make it work


cards are 1060 3gigs
psu - 2x rm850i
cpu - g4400
8 gigs of ram

i dont know what to do