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    Why does enabling TPM add 4 seconds to boot?

    Discussion in 'Lenovo' started by noxxle99, Mar 22, 2013.

  1. noxxle99

    noxxle99 Notebook Deity

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    My x220 takes 4 seconds longer to boot when TPM is enabled but not being utilized. Not that 4 seconds is a long time, but what is the chip doing if I'm not even using it (bitlocker off)?
     
    noxxle99, Mar 22, 2013
    #1
  2. wditters

    wditters Notebook Consultant

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    It itinitializes (it boots up so to say) .. Similar to a normal computer, the chip has it's own logic/BIOS, or otherwise it would not be secure ... For TPM to be compliant with industry security standards, it has to include integrity checks etc during initialization.

    Whether or not you then actually decide to use the chip is a completely different matter and fully up to you :)


    Sent from my iPad using Tapatalk HD
     
    wditters, Mar 23, 2013
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  3. Thors.Hammer

    Thors.Hammer Notebook Enthusiast

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    I believe the more RAM you have, the longer this takes as well.
     
    Thors.Hammer, Mar 23, 2013
    #3