BE7 MB Runs CPU @100mhz Not 133Mhz

Discussion in 'Abit' started by Ian Mcfarlane, May 30, 2004.

  1. Have installed a P4 2.GHz CPU onto a ABIT BE7 MB. On boot the bios set the
    cpu @[email protected]*100mhz. Reset to 18*133mhz = 2.4 GHz . At these settings the
    PC will not boot. Changed the settings to 24*100mhz = 2.4 GHz and all is ok.
    Does any one know why this will not boot at 133Mhz. Can increase the MHz in
    increments of one. But the multiplier is set @ 24. The CPU will overclock to
    2.7 GHz. This has been stable on my second PC for Months.
    Ian Mcfarlane, May 30, 2004
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  2. Ian Mcfarlane

    TomG Guest

    get a copy of the CPU identification utility from Intel to be sure of what
    CPU you are dealing with. with a non-engineering sample of the Intel CPU's,
    you can change the internal multiplier in the bios all day long and the CPU
    does not honor those changes as the CPU is internally locked at the
    multiplier that Intel set.

    with that in mind, all you have to play with is the FSB. assuming you have
    a true 533 FSB CPU (133 FSB external), then you should be able to set the
    system using the Softmenu default setup for your 2.4 GHz cpu. keep in mind
    also, that the BE7 does not "officially" support the 800 FSB CPU so if that
    unit is a 2.4c HT cpu, then it would most likely be a 800 internal FSB (200
    external FSB) CPU...


    Thomas Geery
    Network+ certified Abit Mirror <----- Cable modem IP
    This IP is dynamic so it *could* change!...
    over 130,000 FTP users served!
    TomG, May 30, 2004
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  3. Do you actually see 2.4GHz indicated in the POST screen with the system set
    like this then?
    Because you are trying to run it at 3.2GHz/
    Indeed. You obviously have a 400MHz FSB CPU. The multiplier is locked at 24x
    and can't be changed. Where did you get the idea that you simply switch to
    133 (533) and make it run properly? Did you buy it thinking it was a 533 CPU
    or something?

    Richard Hopkins
    Cardiff, Wales, United Kingdom
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    Richard Hopkins, May 30, 2004
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