Putting 1,1 internal drive into 3,1 Mac pro

Discussion in 'Mac Pro' started by jfilm, Nov 21, 2015.

  1. jfilm macrumors newbie

    Joined:
    Nov 21, 2015
    Location:
    New York, New York
    #1
    Hi all,
    I've been searching and can't seem to find the answer to this. I have a Mac Pro 1,1 (2006) that recently had a kernel panic. I've replaced it now with the slightly newer Mac Pro 3,1 (early 2008), and I want to know if I can just take my hard drive from the 1,1 and install it into the 3,1. Is it risky to do this because of the kernel panic, and also, would it just act like another drive even though it has another OS on it (it's Snow Leopard) and the 3,1 is running Lion? I know I can get an external enclosure for it and use it as an external drive, so I guess I'm asking what the difference (if any) is between the external enclosure and just installing it internally, and if it could damage the new system. Also wondering about the memory- I had 4 GB in the 1,1- is there anything to consider before adding this to the 3,1, or again, because of the kernel panic, would it be better to leave it alone? Thanks in advance for your input!
     
  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    Not sure about the specifics of the MP but generally any Mac cannot boot an OS that is earlier than the one it shipped with. So if the 3,1 came with Lion originally, it just won't boot SL.

    With regards to the kernel panic, if it was due to something hardware related it won't matter, unless it's the HDD. If it's something software related such as a corrupted volume, the issues will naturally still occur.
     
  3. jfilm thread starter macrumors newbie

    Joined:
    Nov 21, 2015
    Location:
    New York, New York
    #3
    Thanks for the response. In this case, the original OS was 10.5 Leopard, so it should work with Snow Leopard. So if I install the HD internally, could I actually boot from that disc and have access to my old computer (unless there's something wrong with it that caused the kernel panic?). And, if I boot normally with Lion, will the other HD show up and work basically like an external drive, with access to all of my files?
     
  4. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #4
    Yes and yes. :)
     
  5. jfilm thread starter macrumors newbie

    Joined:
    Nov 21, 2015
    Location:
    New York, New York
  6. tripmusic macrumors 6502

    tripmusic

    Joined:
    Oct 26, 2012
    Location:
    MA
    #6
    You can have multiple OS's in that Mac. You hold down the Option key upon startup to select which one you want. I would suggest downloading El Capitan 10.11 and install that to a clean drive. Maybe erase 10.7 and install it there. Then migrate your user home folder from 10.6 to 10.11. After you get everything transferred and running good in 10.11, maybe erase the 10.6 HD and use it as a time machine backup? You want to run 10.11 because it's 64bit as opposed to Lion and SL which are 32bit. If the 3,1 Mac has memory installed already just use that. Check that it's running at 800Mhz. If you mix in the ram from the 1,1 the ram speed will go down to 667Mhz. Not much difference really. Guess it depends on whether you need the ram or not. Running the HD internally will be much faster than externally
     
  7. OS6-OSX, Nov 23, 2015
    Last edited: Nov 23, 2015

    OS6-OSX macrumors 6502a

    OS6-OSX

    Joined:
    Jun 13, 2004
    Location:
    California
    #7
    1. SL is 64 bit http://www.everymac.com/mac-answers...64-bit-performance-how-to-boot-in-64-bit.html
    2. If you need SL to boot in 32 bit hold down 3 & 2. 64 bit boot is default
    3. Do not erase your SL drive until you note what apps will not run in an OS above 10.6
    4. Update the SL disk to 10.6.8 if it was not
    5. If you add the 667 ram to the 3,1 make sure it's enough to be worth while. Will the additional ram give 12GB or more?
    6. After you take note of your apps and hardware (keeping drivers in mind), you may want to look into 10.8 Mountain Lion
    7. With the 4 internal bays you can theoretically have 10.6.8, 10.8.5, 10.10 and 10.11 all on the 3.1 for testing purposes.
    8. Take the SL disk and update it to 10.6.8 if it is not already there
    9. Take extra drives (blank) and use "restore" in disk utilities to "clone" the SL to them
    10. Update each clone to a specific OS
    11. Install specific apps if any (not original on the SL drive) to the other OS drives
    12. Hold down the option key to select a specific drive and test all the apps. You will probably see issues with certain apps and OS'es.
    13. Keep the 1 or two OS drives that fit your needs.
    14. Use the 1 or 2 not used as backups. Use restore again to clone them.
    15. Depending on your hardware and driver availability, you can save yourself a spending spree! :cool:
     

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