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Can't Get PPC G5 to Boot from external Firewire 1TB drive.

479 Views 5 Replies Latest reply: Oct 17, 2013 6:43 PM by BDAqua RSS
Carl Beck Calculating status...
Currently Being Moderated
Oct 17, 2013 10:51 AM

I can not get my Power Mac G5 to boot from an external Firewire hard drive.  The external hard drive shows up as a Boot Drive - but when I select it as the Start Up drive - my G5 simply will not use it. Boots from the original internal hard dark drive each time...



I am pretty certain that the Firewire Hard drive is set up correctly {



I read somewhere - that some older PPC G5's running 10.4.11 can  not boot from an external Firewire Drive. I can't find any specific information about that however.




Hardware Overview:



  Machine Name:          Power Mac G5

  Machine Model:          PowerMac7,3

  CPU Type:          PowerPC G5  (2.2)

  Number Of CPUs:          2

  CPU Speed:          2 GHz

  L2 Cache (per CPU):          512 KB

  Memory:          1.5 GB

  Bus Speed:          1 GHz

  Boot ROM Version:          5.1.8f7

  Serial Number:          G85095RZQPM



Any help would  be appreciated.





Mac OS X (10.4.11)
  • BDAqua Level 10 Level 10 (114,670 points)

    Hi Carl, I think it can boot from FW drives upto 2.2 GB, but hopefully this is an OWC Mercury Elite Pro, which likely has a tiny red switch inside you need to flip for PPC Mac booting, I had to reclone/reinstall after flipping the switch, if it is you might call or chat with OWC to get approval so warranty isn't voided.


    This what I'm booting my G5 from...


    FireWire Bus:


      Maximum Speed:    Up to 800 Mb/sec


    Mercury Elite Pro Quad USB 3:


      Manufacturer:    OWC

      Model:    0x0

      GUID:    0x30E009E013B107

      Maximum Speed:    Up to 800 Mb/sec

      Connection Speed:    Up to 800 Mb/sec


    Mercury Elite Pro Quad USB 3 Unit:

      Unit Software Version:    0x10483

      Unit Spec ID:    0x609E

      Firmware Revision:    0x301

      Product Revision Level:    0B 3


    Mercury Elite Pro Quad USB 3 SBP-LUN:

      Capacity:    1.82 TB

      Removable Media:    Yes

      BSD Name:    disk1

      Mac OS 9 Drivers:    Yes

      Partition Map Type:    APM (Apple Partition Map)

      S.M.A.R.T. status:    Not Supported

  • BDAqua Level 10 Level 10 (114,670 points)

    It does show up in the "Startup Disk" control panel - as Bootable. But on Startup the computer just doesn't seem to be able to find it - so moves on to use the internal drive.

    Same exact symptom on mine until I flipped the red switch & recloned. Sad to hear no more red switch.


    In System Profiler>Hardware>Firewire, what does yours report for Firmware version & such, like mine above.

  • BDAqua Level 10 Level 10 (114,670 points)

    Could be the Red Switch is only on drives greater than 1TB?

    Could be, my 1 TB Mercury Elites are old, before the new Advanced Format Drives with 4096 Byte Sectors, so I don't think they needed it.


    Looks like you have a later Firmware revision than mine.


    I suspect OWC will get it figured out & working, they sem good about that.


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