Answer:
Step-by-step explanation:
This could be one of the possible problems if the hard drive is not spinning at all. When this happens it means that the hard drive is not receiving enough power. If it is truly the Molex Power connector then the simplest solution would be to replace the power connector which is easy enough since most power supplies will bring various extra molex power connectors. This only applies to older hard drives as newer models are much thinner and only require a sata cable to transfer data and receive power. If this does not fix the problem then the next possible cause could be a faulty power board.