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Thread: Cyrix 333




  1. #1
    Join Date
    Mar 2002
    Posts
    3

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    Ok dont laugh, but i have a Cyrix 333 and I was thinking about overclocking it. I wanted to know if anyone else has tried it, and if so how did it do?

    Thank You
    IO_303

  2. #2
    Join Date
    Dec 2001
    Posts
    1,297

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    I had a Cyrix 300 in my first machine, and I believe the multiplier is locked. It's been a long time, and I never got it higher. Bump up the FSB and voltage. Have fun...

  3. #3
    Join Date
    Apr 2002
    Posts
    5

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    shouldnt be locked,
    those are the procs that made overclocking mainstream

    go for the multiplier,
    if its locked it wont make a diference,

    the fsb will give you a higher overall speed but also causes stability issues,

    go for a 75mhz fsb and bump the multiplier,

    increase the volatge as well

    i see an easy 200mhz gain
    300mhz with proper cooling

  4. #4
    Join Date
    Nov 2001
    Posts
    362

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    Your Cyrix 333 is probably running at 250MHz ...either 3*83 or 2.5*100.....The multiplier shouldn't be locked......The best I could stably do for my old pr 333 (250=3*83) was 4*66 or 266MHz but because the bus speed was that much lower the whole outcome was slower. I did get to 292 (3.5*83) but wouldn't get into windows at all.....make sure you've got reasonable cooling...any of the new celeron/duron hsf's should be OK.

    You will need a mobo that will let you fiddle with the fsb and multipliers...probably by jumper given the vintage......and they probably won't be documented that well either.....

    Have a look at Motherboard.org for your model and see if you can get the mobo jumper specs from the manufacturer's site....

    Good luck
    The older I get...the better I was

  5. #5
    Join Date
    Mar 2002
    Posts
    75

    Default

    I had a Pentium II 333 slot 1 and I got it overclock to a 400mhz. It had the clock-lock on it. I wish it did'nt. Now I have my 866 with the same board.

    :thumb:
    Windows XP Pro
    P3V4X Asus Motherboard
    Pentium III 866 slot 1 @ 1.2
    ATI 9000 Pro
    1 Gig 150mhz SDRAM
    ATA100 40 gig IBM
    ATA100 Maxtor Ultra Control Card
    MX400 Monster Sound Card
    V.92 Modem
    3 Comm Network Card
    48x24x48 CDRW Rom
    52x Asus CD Rom
    16X DVD Rom

  6. #6
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

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    A universe of difference there between a PII and a Cyrix. :rolleyes2
    <center>:cheers:</center>

  7. #7
    Join Date
    Mar 2002
    Posts
    75

    Default

    Yes indeed.
    Windows XP Pro
    P3V4X Asus Motherboard
    Pentium III 866 slot 1 @ 1.2
    ATI 9000 Pro
    1 Gig 150mhz SDRAM
    ATA100 40 gig IBM
    ATA100 Maxtor Ultra Control Card
    MX400 Monster Sound Card
    V.92 Modem
    3 Comm Network Card
    48x24x48 CDRW Rom
    52x Asus CD Rom
    16X DVD Rom

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