| Symptoms |
Cause |
Repair Possible |
Data Recovery |
| Starts and then halts |
Destroyed factory loading tables |
Yes |
Yes |
| Does not spin up |
Faulty motor, controls or links |
Yes |
Yes |
| Knocking noise from heads |
Damage to track 0 or the switching microcircuit |
Yes/no |
Yes/no |
| Partition management not possible |
Fault table translator damage |
Yes |
Yes |