help hard drive problem

[luker72]

can someone please help installed new psu today every thing worked fine then realised hadnt connected dvd rom so switched off connected it now pc wont start if i disconnect hard drive it powers up if i connect molex connecter to hard drive pc cuts out and wont do anything tried hard drive on its own and still no joy can anyone help please

[sr71000]

maybe it's a bad molex connector...shorting out or something like that. Also, you didn't plug the power into the harddrive while the computer was on did you?

[luker72]

have tried other molexs with no joy and i didnt plug it in when it was on turned it off first.i just dont now what else i can try

[Atomic Rooster]

You should make sure all cables and connections for all components (drives, video/sound cards, etc.) are properly attached and inserted firmly.

[luker72]

have tried everything even with nothing connected only the hard drive as soon as i press the power button the power light flashes then nothing.do you think i need a new hard drive