I bought a new Inspiron 7560 about a week ago. The laptop shuts down automatically when on AC power ( works fine on battery). I initially thought it was due to flea power so I drained the flea power but still the same issue. Sometimes it shuts down within a few minutes sometimes works properly for days. I checked the bios power logs. There is a event - `Shutdown - AHCI power off`. Not sure what's going on?