Case:
The client connects the connection when connecting the power supply for the hard disk, and then there is a place to smoke.
Solution:
When I went to the smoke place, I was cut off when I checked the stabilization diode. Remove the tube and measured other places. There is no short circuit.This situation belongs to the phenomenon of a typical 5V stabilization diode that is penetrated by 12V. (The detailed cause of this failure can be reported to the computer to see my article to see it.) Just take it off.Of course, it is best to add another one to the insurance.The data is intact.