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no startup chime

  1. D

    iMac 2017 27" nightmare

    So I think I killed my iMac.... Its an 2017 A1419 27 inch it came with i5 3.8GHz - I wanted to upgrade to an i7-7700, plus 1TB nvme Got all the parts, watched all the videos Big day comes - have al my fixit instructions printed out, go through it step by step, have my screws and parts...
  2. A

    Imac G3 (Slot Loading) screen or motherboard problem.

    Hi. Me and my dad bought an imac g3 but it came shattered in cargo. I tried to run it in broken state, it worked and it was ok, then we completely removed the inside of it, repaired the CRT bezel and cleaned the boards. This process took 2 weeks and when we try to operate it today, the power...
  3. S

    cMP 2,1 Black screen / No Startup Chime / Diag LEDs clear

    All, I've recently hit a dead-end diagnosing what has happened to my MP 2,1. For the past 2-years all has been running well on 10.11.6 via the boot.efi hack and an EVGA 560 GPU; however, last week (after some power outages) my mac was non-responsive. Pressing the power button does spin up the...