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can't boot

  1. M

    MP 1,1-5,1 My 2008 3,1 mac pro only boots with a DVD

    Hey guys, I recently picked up a 2008 3,1 mac pro with a gtx 770 24GB of ram and dual quad-core Xeon at 2.8gz. it came with macOS 10.9 installed and I want to put windows on there, so I made a bootable windows disk and selected the DVD as the startup disk in system preferences, the windows 10...
  2. 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...
    • saint322
    • Thread
    • can't boot no boot no startup chime unresponsive won't boot
    • Replies: 10
    • Forum: Mac Pro
  3. lindyman77

    Now High Sierra can't find my SSD startup disk...but booting externally

    Super weird issue going on. Upgraded my 13" 2011 MBP with a Samsung 840 Pro SSD to High Sierra. (Automatically upgraded to APFS with TRIM enabled) Last night it wouldn't boot showing only a flashing folder/question mark. Did all of the usual stuff PRAM, Recovery Mode, repaired permissions, etc...
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