G4 Powermac MDD motherboard

Discussion in 'Macintosh Computers' started by koozman, Jul 25, 2005.

  1. koozman macrumors newbie

    Jul 10, 2005

    I got a question. I had a bad motherboard in my Powermac G4 MDD Dual 1.42Ghz. When I replaced the board with another I got my 1.42 now shows up as dual 1.13Ghz and the 167Mhz speed dropped to 133Mhz. Would the processor speed drop down like that if this board is a 133 instead of the 167?? I was told it was 167Mhz with the firewire 800 port, which it has. Is there a way to tell what speed the board is??

  2. R.Youden macrumors 68020


    Apr 1, 2005
    As a rough guide you coud try running Xbench and then comairing your results to mine as I have the dual 1.42. This is not very scientific but is a good illustration of if is far off mine...
  3. caveman_uk Guest


    Feb 17, 2003
    Hitchin, Herts, UK
    The bus speed is selected is selected by the placement of certain resistors on the motherboard. Google for overclocking MDD or similar.

Share This Page