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Thread: AK73 pro JP21 FSB select Jumper




  1. #1
    Join Date
    Oct 2002
    Posts
    2

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    Im a starting overclocker and i want to push my FSB rate to 125MHz but there's a little problem.
    on my motherboard is a FSB select jumper that allows it to run between 100-120MHz or between 124-166MHz
    So if i want to push the speed to 125MHz I have 2 change the jumper.
    Now I wanna know if that could blow my CPU or I can just give it a try and if it doesn't work change it back?
    Aopen AK73 Pro
    AMD athlon 800mhz@960MHz
    2x 128MB SDRAM
    GeforceMX2 400
    SafeWay 5.1 PCI soundcard
    IBM DTLA Deskstar 75GXP (30GB 7200rpm)

  2. #2
    Join Date
    Jan 2002
    Posts
    474

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    That all depends on what you have your FSB pushed to right now. Is that OC speed you have now the maximum stable, or just a little push?

    If you haven't yet checked the full potential of your CPU's overclockability, then start off with the first 100-120MHz. Then if it looks like it can take a bit more, change that jumper on over to 124-166MHz.
    Chris "Raven"
    News Crew - TweakTown
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  3. #3
    Join Date
    Oct 2002
    Posts
    2

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    I turned up the speed in little steps of 5MHz and tested it everytime for a couple of days and it still works great and now Im on 120MHz

    so Im gonna give it a try then I guess
    Aopen AK73 Pro
    AMD athlon 800mhz@960MHz
    2x 128MB SDRAM
    GeforceMX2 400
    SafeWay 5.1 PCI soundcard
    IBM DTLA Deskstar 75GXP (30GB 7200rpm)

  4. #4
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

    Default

    There's really only one way to fix this. :devil win

    1/ Unlock the CPU (a pencil will do this with your's)
    2/ set the multiplier to 6
    3/ set the FSB selection switch to 133MHz
    4/ you may have to bring your memory speed back to that of the CPU's FSB though unless it can run at 166MHz

    Now doin' the above has never failed with me and will give you still a stock 800MHz (though performance will be enhanced) but it's likely that an Athlon 800 will go up to the 7.5 multiplier (1000MHz) on this FSB (I've found most to be in the 7 - 8 range) so long as you have good hardware and cooling. :devil:
    <center>:cheers:</center>

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