Upgraded from 1.1 to 2.1 but lose cpu

Discussion in 'Mac Pro' started by dwight_talley, Jun 7, 2018.

  1. dwight_talley macrumors newbie

    dwight_talley

    Joined:
    Jun 7, 2018
    Location:
    Providence RI
    #1
    2006 1.1 Mac Pro. I upgraded to 2.1 using the firmware tool and rebooted as directed by the software. I now have only 1x 2.66 cpu showing. I then downgrade to 1.1 and both cpus show up. Not sure what the problem is.

    2 x2.66 dual core xeon 5150

    Currently running Lion with all of the updates.

    Geekbench shows a degrade in performance after I went to 2.1

    Any help appreciated.

    Dwight
     
  2. LightBulbFun macrumors 68000

    LightBulbFun

    Joined:
    Nov 17, 2013
    Location:
    London UK
    #2
    this is normal,

    upgrade to the 2,1 Firmware then do a PRAM Reset and your second CPU will show up again :)
     
  3. dwight_talley thread starter macrumors newbie

    dwight_talley

    Joined:
    Jun 7, 2018
    Location:
    Providence RI
    #3
    Yes, that fixed it. Thanks for the quick reply.

    Dwight
     

Share This Page