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    Could a BIOS update have an effect on battery life ?

    Discussion in 'Windows OS and Software' started by Laptopaddict, Nov 28, 2009.

  1. Laptopaddict

    Laptopaddict Notebook Deity

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    I just did an update of the BIOS and I have the impression that the laptop consumes less power...
     
    Laptopaddict, Nov 28, 2009
    #1
  2. DetlevCM

    DetlevCM Notebook Nobel Laureate

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    Yepp, very possible.

    For example fan management.
     
    DetlevCM, Nov 28, 2009
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  3. bigspin

    bigspin My Kind Of Place

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    Sometimes yes :)

    It allow manufactures to optimise how system work with battery power.

    Eg: VGA/Processor throttling behaviour
     
    bigspin, Nov 28, 2009
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  4. weinter

    weinter /dev/null

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    VGA Throttling only applies for system with integrated graphics otherwise the VGA ROM is located in the GPU and OEMS seldom or never ask users to update VGA BIOS.
     
    weinter, Nov 28, 2009
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  5. bigspin

    bigspin My Kind Of Place

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    Most notebooks comes with VGA bios integrated into system bios. :)
     
    bigspin, Nov 28, 2009
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  6. weinter

    weinter /dev/null

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    What I meant is that for laptops with discrete graphics, VGA BIOS is not in system BIOS but in a VGA BIOS chip on the discrete card.
    However for laptop with integrated graphics such as Radeon 3200HD, Nvidia 9400M G or Radeon 4200HD System BIOS contain the VGA BIOS as a module inside, hence Nibitor will not be able to extract the VGA BIOS and undervolting have to be done by decompiling the system BIOS, mod the VGA Mod, recompile and flashed.
     
    weinter, Nov 28, 2009
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  7. Lanaya

    Lanaya Templar Assassin

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    thats not quite true. the Asus M60J has a 230m (discrete) that has the VGA bios located in the system bios.
     
    Lanaya, Nov 28, 2009
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  8. bigspin

    bigspin My Kind Of Place

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    Sorry most laptops comes with the integrated vga bios.
     
    bigspin, Nov 28, 2009
    #8