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    SubjectRe: fsb of older cpu
    Bernd Schubert schrieb:
    > On Monday 08 March 2004 11:38, Bjoern Schmidt wrote:
    >>is there a way to measure/change the fsb of a PII/233/Tonga/440BX while
    >>running linux? Google has no answer...
    > This is the only one I know about, but it has support for a few boards/pll's
    > only.
    > Hope it helps,
    > Bernd

    Hello and thank you for your answer. I determined that this cpu has a fsb of
    66MHz. The reason for my question was that i want to underclock the cpu.
    I think it would be better to change the multiplier instead of changing the fsb.
    Therefore i read the msr register 0x02ah, tilted bit 27 and wrote it back, but
    the cpu clock is still the same. Why does that not work? Is it possible to
    change the multiplier at runtime at all?

    Mit freundlichen Gruessen
    Bjoern Schmidt

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