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    Can't undervolt celeron D?

    Discussion in 'Windows OS and Software' started by johnlonde, Aug 22, 2007.

  1. johnlonde

    johnlonde Notebook Enthusiast

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    I have a Toshiba Satellite A60 with an Intel Celeron 330 (2.66Ghz), and I can't undervolt my CPU! :( I have tried NHC, and it doesn't even show the voltage, and RMClock at least shows the voltage to be 1.375V. I couldn't change the voltage in the drop-down menu, until I found some registry tweaks and enabled 'Unlock VID'. Now I can at least put in different voltages for different multipliers, but whatever I put in does not seem to be applied, as the monitor still shows a consistent 1.375V. Is there anything I can do, or does the CPU or Motherboard/Chipset/BIOS just not support undervolting? :confused:
     
    johnlonde, Aug 22, 2007
    #1
  2. Johnny T

    Johnny T Notebook Nobel Laureate

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    Try updating the bios! That might help.
     
    Johnny T, Aug 22, 2007
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  3. johnlonde

    johnlonde Notebook Enthusiast

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    Thanks, but sadly I have the newest BIOS version.
     
    johnlonde, Aug 22, 2007
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  4. SP Forsythe

    SP Forsythe Notebook Evangelist

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    The bigger question is why?

    It is rumored that Celerons, internally referred to as "Decelerons" by Intel employees were a subset of "defective", but still usable Pentium chips, sold at a discount for budget systems. The salvage program evolved into a full fledged line that became a permanent sales segment. It's Ironic that they eventually named a line the "Celeron D", harkening back to the roots of the original salvage Decelerated Pentiums.

    So why would you decelerate (underclock or undervolt) a component already a deliberate power miser?
     
    SP Forsythe, Aug 22, 2007
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  5. johnlonde

    johnlonde Notebook Enthusiast

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    So, SP Forsythe, are you saying that the problem is probably my celeron, and that another celeron of the same make might be undervoltable?
     
    johnlonde, Aug 22, 2007
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  6. SP Forsythe

    SP Forsythe Notebook Evangelist

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    No,

    I think it has more to do with the chipset AND the Celeron not being designed for such flexibility.
     
    SP Forsythe, Aug 22, 2007
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  7. johnlonde

    johnlonde Notebook Enthusiast

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    That's what I was afraid of! I really could have used a bit less power drain! :sigh:
     
    johnlonde, Aug 22, 2007
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  8. allan_huang

    allan_huang Notebook Deity

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    Does it have SpeedStep?
     
    allan_huang, Aug 22, 2007
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  9. Evolution

    Evolution Vox Sola

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    AFAIK the voltage of no celeron chip whether it be D or the mobile celeron M cannot be changed in any way. Celerons lack speedstep, the only thing that celerons can do is on demand clock modulation(ODCM) which only lowers the core speed but the CPU frequency stays the same.

    I am sorry but you cannot undervolt the celeron it is how it was designed, many have asked this very question and the answer is no :( .
     
    Evolution, Aug 22, 2007
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  10. moon angel

    moon angel Notebook Virtuoso NBR Reviewer

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    No, Celerons don't have speedstep.
     
    moon angel, Aug 22, 2007
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  11. johnlonde

    johnlonde Notebook Enthusiast

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    Oh, well, thanks for all the info anyways! At least now I know that I am not just being stupid! ;)
     
    johnlonde, Aug 22, 2007
    #11