CPU Upgrade Issues

Discussion in 'Mac Pro' started by Boogley, Sep 12, 2007.

  1. Boogley macrumors newbie

    Sep 12, 2007
    I was given a G4 733 by a friend who has upgraded to an Intel Mac Pro and want to upgrade the CPU. I tried the Sonnet Encore dual 1600 but it doesn't work and the tech guy from the company I bought it from who fitted it doesn't know why. The have tried the CPU in another identical g4 733 and it works fine. The only thing I can think of is the ROM boot version which is showing as 4.3.3 f2 on my machine. The apple website says the latest version is 4.2.8. How could this be?

    I have tried to google the 4.3.3 f2 and there doesn't seem to be much info about it ....not sure why this should be. I could trade in the machine and have the tech guy swap the cards and stuff but I would lose all the music programes mt friend left for me if I can't use 4.3.3 f2 I think?Huh

    Any help would be appreciated!
  2. Sun Baked macrumors G5

    Sun Baked

    May 19, 2002
    Is it a UniNorth/Uni-N rev 7 or higher?

    Should be if it has ADC and gigabit ethernet.

    In OS X Terminal (may or may not work depending on OS revision)

    ioreg -l | grep -A 12 'uni-n@'
  3. Angrist macrumors 6502

    Mar 11, 2005
    MI or NJ
    If you want to keep your data just swap the HDDs when you trade it in.
  4. ReanimationLP macrumors 68030


    Jan 8, 2005
    On the moon.
    Since its 733 Mhz, it has to be a Digital Audio or Quicksilver tower.

    I dont see why it wouldnt work, but do remember you have to run the install CD BEFORE you install the Sonnet CPU card.

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