will start with one ram module but not two

Discussion in 'MacBook Pro' started by nam2000, Jan 5, 2010.

  1. nam2000 macrumors newbie

    Joined:
    Jan 5, 2010
    #1
    I have a powerbook g4 running leapard 10.5.6
    I recently upgraded the ram from 1 1g module to 2 2g modules. It will not start with both modules in at once (2g,2g) but it will start with one of the two in and the second port empty (which port is empty doesn't matter). When it has both in it beeps once and doesn't start. Any idea why this would happen and/or how to fix it?

    thanks.
     
  2. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #2
    If you have one of the later models, you need 200-pin PC2-4200 DDR SDRAM SO-DIMM memory modules.
    And the last PowerBook (G4, 1.67GHz) only supports a maximum of 2GB of RAM.
     
  3. joecool99 Suspended

    joecool99

    Joined:
    Aug 20, 2008
    Location:
    USA
    #3
    obviously, one of the RAM modules is faulty
     
  4. ayeying macrumors 601

    ayeying

    Joined:
    Dec 5, 2007
    Location:
    Yay Area, CA
    #4
    Not really? The system only handles up to 2GB so placing 4GB in it won't make it run.
     
  5. joecool99 Suspended

    joecool99

    Joined:
    Aug 20, 2008
    Location:
    USA
    #5
    true i overlooked it's g4...
    sorry, 2GB max
     

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