Asus tuf f17 2023 CSM option

Discussion in 'BIOS Mods' started by Dark Dinosaur, Apr 15, 2024.

  1. Dark Dinosaur

    Dark Dinosaur X Æ A-12

    Feb 2, 2011
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    Open the uefi in my new laptop
    Try to find CSM option..
    Well .. nothing. Anything I can do
    To open it ? :eek:
     
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  2. Lutschpuppe

    Lutschpuppe MDL Senior Member

    Dec 23, 2014
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    Most companies dropped any legacy-support (=CSM) on their machines since some years, because nor CSM neither drivers are developed for the hardware.
     
  3. Dark Dinosaur

    Dark Dinosaur X Æ A-12

    Feb 2, 2011
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    update bios ... and still nothing
    look like they remove this option
    i do wonder, if there modified bios,
    that allowing to load EFI partition, from usb drive with ntfs partition ?
    for this specific model. because it not load efi from ntfs parition
     
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  4. Lutschpuppe

    Lutschpuppe MDL Senior Member

    Dec 23, 2014
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    Wrong.
    EFI-partition has to be formatted FAT32, not NTFS. This is part of the UEFI-specs.

    To my knowledge e.g. Rufus can use a chainloading-mechanism to avoid the boundary of FAT32 and format an install-stick NTFS, but has a hidden EFI-partition containing bootloader.
     
  5. Tito

    Tito Super Mod / Adviser
    Staff Member

    Nov 30, 2009
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  6. RobrPatty

    RobrPatty MDL Expert

    Jul 23, 2009
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    Off topic Tito but does that mean my HPE bios has to have a firmware driver to boot into Refs?
     
  7. TigTex

    TigTex MDL Senior Member

    Oct 5, 2009
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    Extremely unlikely. FAT32 is supported by all x86_64 EFIs that I'm aware of.
    NTFS might work (ASUS usually allows it), other file systems might require a driver. So... just use fat32 and be happy. If you are trying to boot a system installed in legacy mode, just format the boot partition as fat32 and recreate the boot files
     
  8. redsunset

    redsunset MDL Member

    Mar 16, 2022
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    You can dump the bios and inspect it for CSM. Then if present in the dump, you can use the modded grub efi to modify the varstore. This has worked for me with CFG Lock on an Asus Zephyrus 2020 model. That one was also missing CSM, as did 2019 Rog Strix.
    PS if you wanna disable TPM, reflash current bios and quickly enter it. You'll have the option for it just this one time. To enable back do the same. Option is gone after reboot, but the effect stays.
     
  9. Dark Dinosaur

    Dark Dinosaur X Æ A-12

    Feb 2, 2011
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    I have another Asus board .. and does not have this problem
    So Asus do it in purpose? Or something else ?
    If you spend money for mid-high laptop
    So .. allowed it. Nope. :D
     
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