Why am I getting an Apple Hardware Error 4MOT/1/40000003:HDD-1364
Why am I getting an Apple Hardware Error 4MOT/1/40000003:HDD-1364 and what might be possible solutions?
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If it starts with 4MOT it's a motor (fan) error
If it ends in HDD it relates to the HDD fan, The number at the end is the actual rpm for the fan.
This error is generated if the actual fan speed is outside the +/- 10% allowance for the target speed. So you likely have a failing fan nearest the HDD
I'd be sure to backup any PITA data on the HDD, as it may be/have been acting up (overheating) which is caus(ed)ing the fan to fail.
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by Ernest