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    FS series Undervolting Questions

    Discussion in 'VAIO / Sony' started by a-dogg, Dec 15, 2005.

  1. a-dogg

    a-dogg Notebook Guru

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    Just some basic stuff...

    Do you recommend RMClock or CHC?
    Is there any potential possible damage to the hardware/system by doing this? (I'd assume no, but just want to ask...)
    I played with CHC and saw all the setting for 4x, 8x, 16x, etc. Not quite sure what that is... Seems like, if you put it on dynamic switching, the system will only push the CPU to max power if it needs to. Otherwise, it might have the 1.73GHz run @ 600GHz. Is this at all correct?

    I know you're supposed to have a safety margin of +/- 0.1000 volts (per the CHC website's guide)... and this is where I got a little confused. If anyone has used either of these utilities for the FS series, could you post the settings you've used?

    Thanks so much for the help!
     
    a-dogg, Dec 15, 2005
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  2. Bomfunk

    Bomfunk Notebook Consultant

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    I use CHC on my Vaio S Series without a problem, haven't tried RM Clock

    If you undervolt you can't really do any damage to your hardware. CHC does a short stability check and if the Voltage is too low you restart your computer and everything is as it was before

    4x, 6x, etc. is the multiplier of your CPU. The lower the multiplier the lower the Mhz of your CPU. On dynamic switching CHC will set the multiplier to the speed required by the system. Normally it will run at 6x (800Mhz for most newer Centrinos) and then switch to a higher multiplier if CPU load increases. This can all be adjusted according to your preferences (you can tell CHC to only use the highest or only the lowest multiplier, etc)

    What CPU do you have on your machine?
     
    Bomfunk, Dec 16, 2005
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  3. a-dogg

    a-dogg Notebook Guru

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    my FS742/w has a 1.73GHz centrino. I found this guide for using RMClock, so I might use that instead of CHC, just because it's more of a dummy's guide and the only CHC guide I found is more like guidelines.

    http://www.notebookforums.com/showthread.php?t=70943

    I appreciate your thoughts... sounds like i'd have to leave it on dynamic switching (otherwise what would be the point). my main question was how i find the min/max voltages for each multiplier setting. is there a guideline, or is it just trial and error?
     
    a-dogg, Dec 16, 2005
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  4. Bomfunk

    Bomfunk Notebook Consultant

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    It's basically trial and error as each CPU is slightly different. Just lower the voltage step by step and check if the system is still stable. Have fun..

    Just as a guideline, when my CPU runs at a multiplier of 6x (800Mhz) I managed to lower the voltage to 0,732V
     
    Bomfunk, Dec 17, 2005
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