My problem sounds like that of AB1733, but my equipment is different: an msi 870U-G55 motherboard with an AMI processor, an Intel 530 Series SSD, and 2 Hitachi HDS721050CLA362 500GB HDs that are currently configured as AHCI, but which I would like to convert to a RAID+1 array. However, when I turn on RAID in my BIOS, I get a flash of BSOD and a reboot for my efforts. Are my efforts in vain? 1) Can the Hitachi's be used in RAID? and 2) is it possible to use the SSD as a single disk with the RAID+1 array, without reloading everything?