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Rather than being a douchebag and just editing your post to remove even hints at what your problem was.
Why not post your problem AND solution? Who knows, your post may show up in someones Google...

Not to be the complete guy to derail your train, but the issue with the onboard RAID is yes you can set it up.
But unless you RAID the drive for your OS (I have a single SSD, not 2.) that SSD will...

Now after the fiasco with the X399's onboard RAID where you can enable it, but you cannot boot from a non RAID disk, I am forced to look at solutions that will let mee get around this problem.

So...

Well I have done some research that may be worth looking at for info.
Some modern systems have a dislike for these RAID cards.
...

Well it does seem like we are in a pickle here then...
Non bootable RAID arrays is close to a deal breaker on the AMD platform if you are forced to run "Bugdows"
So it seems like I will need to...

Well I made an attempt too at this, I am however stuck waiting for a fix from ASUS as I have no NVM based SSDs to use and will have to live off the SATA ports.
To me it all disappears and becomes...