Este é um problema conhecido com firmwares mais antigos de SSDs Crucial m4 após alguns meses de uso:
Correct a condition where an incorrect response to a SMART counter will cause the m4 drive to become unresponsive after 5184 hours of Power-on time. The drive will recover after a power cycle, however, this failure will repeat once per hour after reaching this point. The condition will allow the end user to successfully update firmware, and poses no risk to user or system data stored on the drive.
Source . Você precisa obter pelo menos o firmware 0309 de aqui .