Post originale di: K9GL ,
It sounds like the +12V is missing. Make sure the voltage setting is correct, and re-check your connections. If you have a meter, probe the power connector to the hard drive, with negative on the chassis (or a black wire). You should have +12V DC on the yellow wire, and +5V DC on the red. Bottom line if it’s missing, either the power supply is bad, or shorted out.