Why does firewire prevent MacBook Pro from booting from time to time?

Discussion in 'MacBook Pro' started by steffi, May 28, 2010.

  1. steffi macrumors 6502a

    Jun 7, 2003
    This has been the case for at least the last 3 machines I've had. Occasionally if you have firewire 800 plugged in the machine will not boot or sometimes the machine will hang and go into spinning wheel and only if you unplug firewire will it come out of it's hung state?

    When you boot you sometimes end up a white screen and only if you unplug FW800 will you get past that point.
  2. tlauer1 macrumors newbie

    Jul 11, 2009
    The same thing happens to me when I have my scanner attached via Firewire 800. Although, my Firewire 800 hard drives don't seem to bother the boot sequence.

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