MBP won't boot with Firewire 800 drives connected

Discussion in 'MacBook Pro' started by Cattywampus_, Mar 18, 2008.

  1. Cattywampus_ macrumors 6502a

    Apr 19, 2006

    I bought a new Macbook Pro 2.4GHz couple of weeks ago. Before this I had a RevA MBP (CoreDuo) with a Siig Firewire 800 ExpressCard34. I didn't have this problem on that setup.

    Now using the built-in FW800 port on the MBP, when the drives are connected, the computer won't boot. It just hangs on the grey screen with Apple logo.

    When I try and boot with the drives connected it boots fine. When the computer has booted I can plug the drives in and they work fine.

    Is there a work around for this?
  2. squeeks macrumors 68040


    Jun 19, 2007
    reset the pram (google: resetting PRAM) to make sure it is set to boot from the internal drive by default
  3. e12a macrumors 68000


    Oct 28, 2006
    what is on your external drive? Is it a bootable image or hard drive?
  4. Cattywampus_ thread starter macrumors 6502a

    Apr 19, 2006
    No, no bootable images. There is just data on there.

    I tried holding the options key when booting, it allowed me to select the boot volume but then just hung after reading the external drives.

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