ASUS releases beta bios beta versions with SAM - Resizable BAR function for Intel Z490 motherboards

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Nov 30, 2020.

  1. SpajdrEX

    SpajdrEX Ancient Guru

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    [​IMG]

    Check Properties of Graphic card -> Resources tab > Large Memory Range must be present
     
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  2. JonasBeckman

    JonasBeckman Ancient Guru

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    For AMD I believe you currently are required to have a 6800(or 6800XT) GPU and 20.11.2 or newer.
    NVIDIA I think is coming in with the 460 branch or newer but I have no idea what GPU's will be supported beyond Ampere as the likeliest to get initial support when their drivers add this functionality.
    (Turing probably is highly likely possibly Pascal too.)

    Intel I am also unsure what CPU's will be supported and how many motherboards other than the latest will see bios updates provided even if they'd technically be compatible hardware wise.
     
  3. Workzero

    Workzero Member

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    I have 3 memory range, no one says large :( (I have RTX 2080S)
     
  4. SpajdrEX

    SpajdrEX Ancient Guru

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    That's correct, NVIDIA does not support SAM in their drivers yet.
    As Jonas said, it only works now if you have 6800/6800/6900 AMD card.
     

  5. Astyanax

    Astyanax Ancient Guru

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    Maybe thursdays driver :cool:
     
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  6. Workzero

    Workzero Member

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    Oh, ok, thank you all!
     
  7. mbk1969

    mbk1969 Ancient Guru

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    According to PCI-SIG specifications
    feature was introduced a looong time ago...
     
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  8. brogadget

    brogadget Master Guru

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    btw: on my "old" Asus APEX VI x299 board, I have a BIOS setting to enable "above 4G decoding", but no option to enable "resizable BAR support".
     
  9. pharma

    pharma Ancient Guru

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    Intel boards back to Haswell have the BIOS setting. I don't think anyone knows if "resizable BAR support" is only required by AMD drivers, or whether Nvidia needs to include the same switch in their drivers. Nvidia's testing at the time only involved enabling "above 4G decoding". When the Resizable BAR feature was used on Linux for the past couple years, "above 4G decoding" was the only switch available. Currently there is no standard to implement the feature.
     
  10. Workzero

    Workzero Member

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    Nvidia new drivers and no resizable bar yet :(
     

  11. Astyanax

    Astyanax Ancient Guru

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    Yeah, i had my hopes up because in a conversation i had it came up that nvidia had been working on it for a long while, (since late 2018 atleast if not earlier).

    well, they aren't ready to flip that switch yet and i doubt it'll be in this branch cycle that they will be, they have other things to fix (like the freesync display issues)
     
  12. -Tj-

    -Tj- Ancient Guru

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    My msi mobo has this option too now, but I didn't install that bios yet, don't like the sound of beta in it. :p
     
  13. bemaniac

    bemaniac Master Guru

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    Probably worth flipping above 4g decoding on in my old Asus board with 7700k seeing as the CPU can do it in Linux.
     

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