Bios Sony Pcg-fr415M

Discussion in 'BIOS Mods' started by Koubiacz, Oct 7, 2013.

  1. Koubiacz

    Koubiacz MDL Novice

    Oct 7, 2013
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    Hello,

    I have a problem with a Sony PCG-FR415M laptop.

    The computer is supposed to support 1024 MB of RAM, but due to clamping of the BIOS from Sony, only 512MB can be used.

    After researching the French forums, I was advised to come here.

    A BIOS mod it you can remove the memory clamping Sony?
    The bios of the computer is a Phoenix BIOS ACPI 1.0
    The bios version is R0109K7

    I have not found updating the BIOS on the website of Sony.

    Thank you for your help

    PS : Sorry for my bad English, I used Google Translator
     
  2. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    #2 LatinMcG, Oct 7, 2013
    Last edited: Oct 7, 2013
    no bios dload apparently on sony site.
    and youre not the only one suffering this issue. no fix found so far
     
  3. Koubiacz

    Koubiacz MDL Novice

    Oct 7, 2013
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    Hello,

    I'm not the only one with the problem of memory throttled to 512MB?

    Thanks
     
  4. Koubiacz

    Koubiacz MDL Novice

    Oct 7, 2013
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    Thank you for your link, I had seen this website.
    I did some tests on my side with my config.com-and CPU-Z, the 1024mb RAM are detected, but the bios uses only 512MB.

    I contacted Sony and they told me he could do nothing.

    I deduce that this is indeed a voluntary clamping them to prevent the upgrade of their laptops.

    Anyway, I deduced that there was nothing to do.
     
  5. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    only possible thing is to find a similar bios and see where the problem is.. in DSDT or where else it could be.. im not sure as i dont mod bios too deep
     
  6. Koubiacz

    Koubiacz MDL Novice

    Oct 7, 2013
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    Thank you for the info.
    But I'll leave the computer with 512MB of RAM.
    I think a bad bios could destroy the motherboard and given the age of the computer it is not interesting to take the risk.