@masterD :
Welcome at Win-RAID Forum!
To which mode (AHCI/IDE/RAID) did you set the on-board Intel SATA Controller from within the UEFI BIOS?
Provided, that the Intel SATA Controller is running in AHCI mode, you should better ask the Samsung Support than us.
By the way: Samsung’s tool named Magician is crap in my eyes. It doesn’t detect Samsung SSDs, which are members of a RAID array, and gave me very often a sudden BSODs during its installation.
Regards
Dieter (alias Fernando)