I just started using this board (got them cheap). The only thing I had to do was turn off the onboard graphics, set to Gen1, increase the page file to 25-30gb. Left everything else stock settings, never even used the drivers, just let Win10 setup (I use pro, not sure about other versions).
You shouldn't have to be changing a bunch of settings. Maybe reset the bios and start over.
Personally, I would reset the bios, put in a 16x card on a riser, boot/turn off on board video and set to Gen1, reinstall windows, install driver for the card (patch if modded), once this is up and running you can start adding additional cards. Once I have the first card running I just shove the rest in there and re-install the drivers. Been pretty easy so far....
Sometimes you actually try to trouble shoot too much and start getting mixed up on what you did and didn't do. It may be time to start from the beginning.
lol 25gb to 30gb doesn't do you any good except affect performance, lemme guess you only have 4gb ram. what a noob