Mac 6,1 stuck with 127.0.0.0.0 boot rom....

Discussion in 'macOS Mojave (10.14)' started by ilandmac, Jun 11, 2019.

  1. ilandmac, Jun 11, 2019
    Last edited: Jun 11, 2019

    ilandmac macrumors member

    ilandmac

    Joined:
    Mar 25, 2012
    Location:
    Remote island
    #1
    Hi,


    Mac 6,1 & Boot Rom 127.0.0.0.0

    I want to install 144.0.0.0.0 boot rom to disable Hyper Threading.

    I Googled around but did not find specific way to do this.

    Would appreciate any help on this issue.

    I've already reinstalled Mojave and that did not help.

    Thanks

    Wickie
     
  2. treekram macrumors 68000

    Joined:
    Nov 9, 2015
    Location:
    Honolulu HI
    #2
    Do you have the MacPro5,1 or the MacPro6,1 (or something else)?. For MacPro5,1, the latest BootROM version appears to be 144.0.0.0. For MacPro6,1, it's (at least) 130.0.0.0.

    If you have the Classic Mac Pro, which is what you list in your signature, you might want to visit the Mac Pro forum as there are certain requirements to be able to get to 144.0.0.0 (Metal-capable GPU if I recall). There are people in the forum who know a lot about the classic Mac Pro.
    https://forums.macrumors.com/forums/mac-pro.1/

    If you have MacPro6,1 (cylinder), make sure you're running the latest installer. If you have that and it doesn't update the BootROM, you should likewise visit the MacPro forum.
     
  3. ilandmac thread starter macrumors member

    ilandmac

    Joined:
    Mar 25, 2012
    Location:
    Remote island
    #3
    Hi Treek,

    I have the cylinder 6,1. Thanks !
    on my way to the Mac Pro,forum.
     

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