1 CPU inactive after 1,1 to 2,1 upgrade?

Discussion in 'Mac Pro' started by cw48494, Sep 13, 2015.

  1. cw48494 macrumors regular

    cw48494

    Joined:
    Jun 17, 2015
    #1
    When I upgrade firmware on my 1,1 to 2,1 it only shows a single CPU in the system, it's fixed if I downgrade again; what's the issue here?
     
  2. VAGDesign macrumors 6502

    VAGDesign

    Joined:
    Feb 1, 2014
    Location:
    Greece
    #2
    Almost 2 years ago I followed this guide

    Both was working after the first reboot but was not recognised by the OS X.
    I upgraded the firmware after the installation of the CPUs and everything was appeared OK.

    Make sure you did all the steps on this 2 parts guide. If you did and you still got 1 CPU off, maybe it's no good and better to return it.
     
  3. cw48494 thread starter macrumors regular

    cw48494

    Joined:
    Jun 17, 2015
    #3
    Current system is with stock CPU's, 2.66ghz quad(2x2).
     

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