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B550 Tomahawk - AMD Ryzen 9 3900 - Windows 10 install fails with NVME RAID

Question asked by edjones999 on Oct 16, 2020
Latest reply on Oct 17, 2020 by Earnhardt

So the BIOS is set to RAID/UEFI. NVME 2.0 TB RAID 0 x2 (total 4TB). There is also a 4 TB SATA but that is not connected to the MB at this time. The RAID is setup and configured correctly in the BIOS and displays as such.

I boot to the Windows 10 installer on a USB drive. I get to the part where you have to load the RAID Controller driver. Browse to the USB with the RAID Controller Driver folder (AM4_RAID Driver WT - WTx64- Browse to the NVME folder and double click the AMD RAID Bottom folder. That loads and works fine but still not disk shows up. This is normal. Then browse to the RAID Controller folder. Only one option appears even if I uncheck Hide Unsupported Devices. When I select the listed RAID Controller and press next, I get a Windows Blue Screen that says Invalid Extended Processor State and the system reboots. How can I get this to correctly work and install the OS on the RAID?