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

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#5862891
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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.
#5862926
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Workzero:

I have 3 memory range, no one says large 🙁 (I have RTX 2080S)
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.
#5862932
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SpajdrEX:

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.
Maybe thursdays driver 😎
#5862940
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Oh, ok, thank you all!
#5863012
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According to PCI-SIG specifications
Resizable BAR Capability This optional ECN (ECN is a type of document - mbk) adds a capability for Functions with BARs to report various options for sizes of their memory mapped resources that will operate properly. Also added is an ability for software to program the size to configure the BAR to. - April 24, 2008
feature was introduced a looong time ago...
#5863613
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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".
#5863616
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brogadget:

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".
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.
#5864012
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Nvidia new drivers and no resizable bar yet 🙁
#5864068
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Workzero:

Nvidia new drivers and no resizable bar yet 🙁
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)
#5864072
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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
#5864205
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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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