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Cannot turn on my iMac after six months of inactivity

Cauter -  
 Cauter -
Hello, unable to restart my iMac after a long period of inactivity of 6 months in its box for moving.

Configuration: Macintosh / Safari 14.1.2

2 answers

  1.
    _Ritchi_ Posted messages 21130 Registration date   Status Contributor Last intervention   6 135
     
    Hello,
    I suggest you perform an SMC RESET, namely:
    • Turn off the Mac (in your case, it’s already done :-) )
    • Unplug it from the power and remove everything connected to it (mouse, keyboard, ...)
    • Press and hold the Power button for at least 15 seconds
    • Release the Power button
    • Wait at least 30 seconds before proceeding to the next step
    • Plug the iMac back into the power
    • Press the Power button to start the Mac
    • And now, listen carefully for any sound the Mac makes: startup chime, fan noise, hard drive spinning, ... track any sign of life that will indicate whether it responds to the power button.

    Ritchi
    0
    1. Cauter
       
      Hello and thank you.
      Unfortunately it doesn’t work.
      Thanks again.
      0
      1. _Ritchi_ Posted messages 21130 Registration date   Status Contributor Last intervention   6 135 > Cauter
         
        But at least did you listen for a sign of life from your Mac?
        By the way, what model is it, year, screen size, processor, etc.?
        0
  2. Cauter
     
    Hello, yes I listened, no event or noise.
    It is an iMac 27" from 2015
    Processor 3.2 GHz Intel Core i5, Turbo up to 3.6 GHz
    16 GB DDR3L
    There you go.
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