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Thread: why is my bus speed at 133 mhz?




  1. #1
    Join Date
    Nov 2005
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    8

    Default why is my bus speed at 133 mhz?

    it should be running at 533 mhz and it is running at 133mhz i cant find any settings in the bios

  2. #2
    Join Date
    Nov 2001
    Location
    Texas, USA
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    4,825

    Default Re: why is my bus speed at 133 mhz?

    Given that you didn't think we needed any sort of system information, I can only assume you're talking about an older Pentium 4 system using a "quad-pumped" front side bus. Since memory of that era could not even theoretically run at a speed of 533MHz, the system took the default FSB of 133MHz and quadrupled the data path internally, giving this pathway a speed of 533MHz for internal communications. If this is not the type system you have, then it would be useful to include some basic system specs.
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  3. #3
    Join Date
    Nov 2005
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    8

    Default Re: why is my bus speed at 133 mhz?

    its a pentium m at 1.8 can u tell me now?

  4. #4
    Join Date
    Nov 2005
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    Default Re: why is my bus speed at 133 mhz?

    to be more precise its a pentium m 750 and it on the manual it says that it runs at 533mhz but nero info tool shows that it runs at 133, is this right or not?

  5. #5
    Join Date
    Nov 2003
    Location
    Minnesota, United States
    Posts
    4,543

    Default Re: why is my bus speed at 133 mhz?

    All socket 478 and 775 Pentium 4s (and P4 Celerons) and all Pentium Ms (and Celeron-Ms) are quad-pumped, which means the overall bus speed (533MHz, here) will be four times the FSB (133MHz). So yes, it's fine.
    Last edited by Yawgm0th; 11-24-2005 at 09:26 AM.

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