Mac power light flashes 3 times, no usb response mac was in sleep mode, I accidently hit power button, now all I get is three flashes pause then 3 flashes again, and fans go into hyper drive monitor blank screen, no keyboard or mouse response, mouse doesn't light up--no chimes on restart- can't zap the pram (no keyboard response)

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24 Jan, 2018

  • 63%
    Solved this issue
  • 105min
    Time to fix
  • 65%
    Recommend to DIY
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