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Bought Mac Mini on ebay. I7 16gb mem and two harddrives. one hardrive wasnt working. suspect ribbon connecting it. problem is if i start it nothing will be on screen no chime just loud fan, if i reset SMC it will boot up fine. Any clue why? how to fix that?
Once the mini boots up, is the clock correct? If not, you might need a new PRAM battery. Check out this guide to replace it. Also, what happens when you disconnect the hard drive ribbon cables from the logic board and power the computer up? It’s possible (but unlikely) that if a cable is faulty, weird boot issues like this could show up.