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AMD TBird 1.2 only clocking at 500 MHz

Discussion in 'AMD Thunderbird' started by Bob, Sep 1, 2004.

  1. Bob

    Bob Guest

    I know I'm about 3 years behind the technology, but I'm currently
    upgrading my home-built system. It currently has a DFI AK74-EC (KT133
    based) motherboard, and an AMD Duron 750. I bought an AMD Thunderbird
    1.2 GHz (200 FSB) processor and after installing it, only see it
    showing 500 MHz in BIOS and in Windows XP. I played around with the
    BIOS settings, but have had no luck at all. Other than running at 500
    MHz, it does seem to run fine, and the CPU temperature is running in
    the mid 30's (Celsius).

    I put my Duron back in, and it immediately runs correctly at 750 MHz.

    Any ideas if I may be doing something wrong? I'm now assuming that I
    got a bad chip (it was new, OEM packaged from StarMicro).

    Thank you much in advance for your help,
    Bob, Sep 1, 2004
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  2. Bob

    Doughnut Guest

    I believe that the 1200 athlon were unlocked, you may have to set the
    multiplier in the bios correctly at 12x. I may be wrong but something about
    the 1200 rings a bell and im sure this multiplier thing is it.

    Doughnut, Sep 1, 2004
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  3. Bob

    Buffalo Guest

    You may have to set the multiplier to 12 in the BIOS (in some BIOSs,
    you set it to half ie:6). You may possibly even have to flash the
    Buffalo, Sep 1, 2004
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