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    Pentium M Pin mod: few questions

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by naton, Apr 17, 2007.

  1. naton

    naton Notebook Virtuoso

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    Hi everyone,

    1- Is there any danger if I pin mod a cpu which does not accept to be overclocked?

    2- Any recomandation before I go ahead and test it?

    Thanks
     
    naton, Apr 17, 2007
    #1
  2. Budding

    Budding Notebook Virtuoso

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    Before you pin-mod, re-configure the voltage supplied to the CPU using NHC or something similar to prevent the CPU melting due to overheating. Make absolutely sure that your laptop can handle the increase in temperature - i.e. sufficiently cooled, otherwise you might risk permanent damage to not only your CPU, but all your other components as well.

    Also make sure you do not apply too much or too little arctic silver on your CPU after modding it.

    As long as you follow the guide step by step, there should be no problems.
     
    Budding, Apr 17, 2007
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  3. StefanHamminga

    StefanHamminga Notebook Consultant

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    Last time I tried pinmodding the voltage does not change when you mod the BSEL pins for the FSB selection? You can find the VCore pins in the intel datasheets.

    Try this one
    Page 21: General explanation
    Page 22-25: Table showing voltage/pin combinations
    Page 26: Introduction to FSB frequency selection
    Page 42 & 43: The pinout (seen from the top, use missing pins to check!)
     
    StefanHamminga, Apr 17, 2007
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  4. naton

    naton Notebook Virtuoso

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    Hi guys and thanks for the reply,


    Budding, I assume that you mean lowering the voltage befor pin modding, isn't it? This is a bit confusing... I thought when you overclock you start with the default Vcore, and then you rise/lower it untill you get a stable machine?

    StefanHamminga, this PDF is for Core2Duo. I thought the socket configuration for Core Duo and Core2Duo is different from the Pentium M one!

    Did anyone succeed to oveclock a Pentium m 735 (1.7GHz) without volt mod?
     
    naton, Apr 17, 2007
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  5. StefanHamminga

    StefanHamminga Notebook Consultant

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    Sorry, indeed the wrong PDF, here is the correct one.
    Page 19: FSB selection
    Page 35: Pinout
     
    StefanHamminga, Apr 17, 2007
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  6. Budding

    Budding Notebook Virtuoso

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    You could indeed start with the default voltage, although I find it saver to lower it a bit first, then see how well the machine fares. Depending on the cooling involved, a few extra degrees might result in total disaster, which is why I would opt for the saver option. Don't forget, it's the temperature of the CPU in full load that is important, not when it's idle.
     
    Budding, Apr 17, 2007
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  7. naton

    naton Notebook Virtuoso

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    Thanks guys
     
    naton, Apr 19, 2007
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