Hard Drive Turning Computer Off

My Macbook Pro will start up, but right before it boots into OS X it turns off. (At Apple screen)

I removed the HDD to see if it was just the logic board that went bad. It will stay on all day at the folder screen it makes when no HDD is in, so I think it has something to do with the HDD.

I have tried 2 hard drives, and 2 hard drive cables and the same thing still happens.

Does anyone have any ideas what I could do, or what may be causing the computer to just instantly shut off at the apple screen?

Answer this question I have this problem too

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Did you format and install systems of the hard drives? Is your system installation disk the one that came with this Mac?


It looks like a issue of a your mac's Logic board


Well this only starting happening a few days ago. This is also happening on 2 computers of mine so idk what could have caused this.


Happening on multiple computers I don't believe that many logic boards are bad. Check mayers comment again--if you used the same software for all the computers your answer may be there.


simran, we'll give you a chance to think over your response to see if you would like to delete it.


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