[help] gpu won't boot

[drukoz2]

i have windows 10 pro x64
with asus z170 pro gaming
i didn't do my research before i got it and i now see that theres big issues with this board
i wanted to know if there are other somwhat cheap alt for socket LGA 1151
and/or if anyone has figured out how to pus in more than 4 cards
i've tried everything the main issue seems to be booting from the 4g encoding
i can get 3 deteceted but once i add in my fourth (without 4g encoding because i cannot seem to be able to boot from it)
it hangs and just gives me either black screen or never shows output
if anyone is willing to help it would be much appreciated