I wanted to increase the storage of my current setup, which is equipped with an AMD Ryzen 9 3900X and an MSI X570 Gaming Plus motherboard. Initially, I had a 256 GB NVME (Samsung 970 EVO Plus PCIe 3.0) as the system disk combined with a RAID 10 of 4 SATA SSDs, each with a capacity of 1 TB. The RAID was working fine.
Later, I migrated my data to a new 1 TB NVMe (Samsung 990 PRO PCIe 4.0) but I am unable to activate the RAID. Either I enable the BIOS and the system keeps booting to the BIOS, or I'm in AHCI mode and Windows boots up without the RAID. I have of course tried a fresh installation of Windows with the proper AMD RAID drivers to see if that was the issue, but it didn't fix the problem. I specify that the RAID is still detected and configured correctly within the BIOS.