1. (Just a passing thought, but) it's no secret that early Samsung SSDs had compatibility problems with AMD-based systems but that should have no bearing re your current Samsung 850 EVO.
2. Anyway, while you're "waiting", you might use Samsung's Magician program to check out the health of the EVO. Probably no problem with the drive itself but check it out anyway.
3. And I don't suppose you have a USB external enclosure (or one of those SATA-to-USB adapter cables) for an external connection to the SSD and attempt another disk-cloning operation?