X370 Fatal1ty Pro - Unable to Create Large RAID0

Thanks! I've looked at it and either I'm an idiot or I'm clearly missing something. 

Here's the thing... I install the AMD Chipset Drivers, reboot and then install the AMD RAIDXpert Drivers... also from the AMD site and the Device Manager shows no RAID drivers as being installed.  Installing the RAIDXpert drivers does not install RAIDXpert/2 (neither of them).  These are my two drives that I'm trying to RAID0.

Edited by visualsoul - 11 Sep 2017 at 9:38am

visualsoul wrote: That being said, because this is Windows based, do you need to set the BIOS to RAID as well?  Whenever I do, my individual drives just disappear from Windows.

Yes, you need to set the SATA configuration to RAID in the UEFI/BIOS, that is required. In the Advanced, Storage Configuration screen. If the SATA mode is not set to RAID in the UEFI, RAID will not work.

Actually, you should have installed Windows with the SATA mode set to RAID. It is difficult if not impossible to change the SATA mode to RAID from AHCI after installing Windows. There is a Windows registry modification for Intel's RAID (different than AMD's) that allows you to change from AHCI to RAID mode, but I am not aware of how that is done with AMD's RAID software, or if it is even possible.

Windows 10 may not have a built in RAID driver that is compatible with Ryzen. During the Windows installation, you would choose a Custom installation, and load the basic AMD RAID driver. That is the SATA Floppy Image ver:8.1.0.26 on your board's download page. The RAIDXpert2 software is not the AMD Ryzen RAID driver, just the RAID configuration software.

If you start Windows Device Manager, do you see an entry for Storage Controllers? If so, there should be an entry for the AMD RAID Controller. If you have neither of those things, RAID won't work.

Again in Device Manager, in the IDE ATA/ATAPI controllers entry, you will probably find three or four entries for your board's SATA controllers running in AHCI mode. Two or three will be the AMD SATA controllers, the other the ASMedia SATA controller. They probably all use the Microsoft AHCI driver, storahci.

Please check Device Manager and let us know what you find. Set the SATA mode to RAID first, save and exit the UEFI, and then check Device Manager. If you find an Unknown Device entry at that point, let us know. That may be the AMD SATA RAID controller without a driver.

I've used AMD's RAID on my Ryzen X370 board, and had it working, but stopped using it when I installed Windows 10 over again on my Ryzen PC.

visualsoul, open disk management, right click each disk and click delete volume.  Then right click and click Convert to GPT.  Go into the BIOS and set SATA mode to RAID as parsec said, as here:

parsec may be correct that you cannot change the SATA mode but it is worth a try.  I'll catch you tomorrow.  Good luck, John.

I did not install Windows with the SATA mode set to RAID.  So basically, you're telling me I'll have to start from scratch again?  I've never had to do it that way with Intel.  That makes sense if you're installing Windows to a RAID drive, but these are just two disks that I want stripe together.  My Samsung 960 EVO is what Windows is installed on.  Thankfully, I haven't really set my system up... so if I do have to reinstall Windows, it won't be complete hell.

Edited by visualsoul - 11 Sep 2017 at 10:48am