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not starting up

  1. C

    Macbook not turning on after power button+d

    I recently purchased a refurbished 13" early 2015 13" 128GB Macbook air. I purchased it through Amazon. It came, booted up like a charm, and was working well. I even able to watch a show on Netflix. On my first night with it, I was following the instructions on this site...
    • cwilli27
    • Thread
    • apple hardware test hardware test not booting up not starting up
    • Replies: 2
    • Forum: MacBook Air
  2. D

    MP 1,1-5,1 Mac Pro 5.1 black screen on startup

    Hi First off i‘m afraid I’m not very computer literate. in the process of upgrading my Mac Pro 5.1 2010 6-core 3.33. 5770 GPU. i recently got a Sapphire 580 GPU - I needed a ‘metal’ card in order to go from high sierra to Mojave. I managed to do the kext thing (following instructions) to get...
    • DCfilms
    • Thread
    • black screen mac pro 5.1 metal gpu mojave gpu no recovery not starting up sapphire 580 sonnet fusion dual sonnet usb-c pci
    • Replies: 3
    • Forum: Mac Pro
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