FSB:DRAM ratio on MBP not 1:1

Discussion in 'MacBook Pro' started by 2fives, Jan 20, 2007.

  1. 2fives macrumors regular

    Joined:
    Nov 7, 2006
    Location:
    Surrey BC
    #1
    How come in CPUZ (when in windows) my memory ratio shows my FSB/Memory ratio as 1:2 ?? I'm running a stock mac book pro 15". Shouldn't it all run at 1:1, wouldn't I need to down clock the memory??
     
  2. 2fives thread starter macrumors regular

    Joined:
    Nov 7, 2006
    Location:
    Surrey BC
  3. rcn macrumors newbie

    Joined:
    Nov 30, 2006
    #3
    DDR Memory works by doing data transfers on both the rising and the falling edges of the clock. This has similar effects as having a clock signal twice as fast. That might be the reason of your question.

    Anyway try checking this out:

    http://en.wikipedia.org/wiki/DDR_SDRAM
     

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