PowerBook 12" DVI RAM Speed Confusion

Discussion in 'PowerPC Macs' started by alexprice, Jun 22, 2006.

  1. macrumors 6502a

    Joined:
    Jan 8, 2005
    #1
    Hi there,

    I have a 12" PowerBook DVI, on MacTracker it tells me that the memory runs at 266MHz. I have installed a 256MB 333MHz SODIMM, system profiler tells be that the RAM I installed runs a PC2700 (DDR333). As for the internal RAM, it doesn't display the speed. My question is: Is is the new RAM runnning at 266MHz or 333MHz? or are both now running at 333MHz due to me installing a 333MHz chip?


    Thanks

    Alex
     
  2. macrumors G4

    Joined:
    Mar 4, 2006
    #2
    All depends on which model of PB12" you have.

    On the 1GHz, the chip will run at 266MHz, since it only has a 133MHz system bus.
    On all others, the chip will run at 333MHz, as the bus on them runs faster at 167MHz.
     
  3. thread starter macrumors 6502a

    Joined:
    Jan 8, 2005
    #3
    Thanks

    Thanks for the answer, it makes sense. When system profiler shows PC2700 it must just be showing what the RAM is capable of.

    Mine's a 1GHz for you info.

    Thanks again,

    Alex
     

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