X370 Fatal1ty Pro - Unable to Create Large RAID0

[visualsoul]

I was wondering if anyone could help here. I have a X370 Fatal1ty Pro board with 1800x processor. The OS is installed on a Samsung 960 EVO 1TB, but I am trying to create a RAID0 with two of my 2TB Seagate SSHD's. I tried using the BIOS utility, but that seems to limit you to 2TB an under. I've tried installing the RAIDXpert utility on the disk, but once it's been installed and running, there are zero options for me to create a RAID. I've also downloaded and installed a RAIDXpert2 option and that doesn't even allow me to login once the app has been installed. Not sure why they make this such a pain in the butt. On my previous Intel systems, it was so incredibly easy and quick. Any help would be greatly appreciated. Thanks!