Front Side Bus bottle neck?

By giyad
Feb 16, 2007
  1. Hey,

    I wasn't sure about something I was hoping someone could clarify this for me. I was wondering if the Front side bus speed of a Mobo is bottlenecked by the processors FSB? For example, if my mobo's FSB speed is 1333MHz and my CPU's FSB is 1066MHz, does this mean that they will bottleneck at 1066MHz, or are they independent from each other?

  2. kitty500cat

    kitty500cat TS Evangelist Posts: 2,154   +6

    The CPU controls the FSB. The motherboard's FSB, as you speak of it, is just the highest FSB that the mobo is guaranteed to support. Some ASUS motherboards, for instance, can run at 1333MHz FSB when the processor supports it. But if the processor's FSB is 1066, that's what the FSB will be. But the FSB speed is determined by the processor.

    Regards :)
  3. giyad

    giyad TS Enthusiast Topic Starter Posts: 59

    ah i get it now thanks! :)
  4. kitty500cat

    kitty500cat TS Evangelist Posts: 2,154   +6

    cool. any more questions, you know where to ask :)

    Regards :)
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