Booting a USB3 external drive via TB3 port?

Discussion in 'iMac' started by imacken, Apr 25, 2018.

  1. imacken macrumors 65816

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    #1
    Just for the hell of it, I tried booting into Windows connecting my USB3 SSD into a TB3 port via a USB to USB-C adaptor. The drive was recognised OK, and the Windows logo appeared OK. However, just before getting to the login screen, my iMac just restarts.
    Is this something that should work OK?
     
  2. imacken thread starter macrumors 65816

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  3. Truefan31 macrumors 68040

    Truefan31

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    #3
    i don't see why it wouldn't work....maybe some update is needed
     
  4. imacken thread starter macrumors 65816

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  5. ColdCase macrumors 68030

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    #5
    Is another mac able to boot from the USB3 disk?
     
  6. imacken thread starter macrumors 65816

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  7. ColdCase macrumors 68030

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    #7
    What about a USB port, but I guess you boot your other mac via USB... never mind, sorry.
     
  8. imacken thread starter macrumors 65816

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    #8
    Sorry, I guess I’m not making myself clear. I have no problems booting from the drive via a USB3 port. I just tried the TB3 port via USB-C cable for the hell of it to see if the transfer rate would be any different.
    As I said, it starts booting Windows, but when it gets to go to the login screen, it just stops and shuts down my iMac.
     
  9. ColdCase macrumors 68030

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  10. imacken thread starter macrumors 65816

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