A100 Not Booting with Asus Z790-P Wifi Motherboard

Accelerated Computing DGX User Forum
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Hi Every one,

I am trying to run A100 80GB PCIe version with Asus Z790-P board. I have been through previous forms (A100 PCIe isn't recognized by BIOS). But that is not helping in my case. Below is my setup and current working

Motherboard: Asus Z790-P Wifi
Memory:128GB
Corsair AX1600i ( so there is no power issue)
1st GPU Card is RTX 4090. ( Using for display purpose )
2nd GPU Card is A100 80GB Card in 2nd PCIe slot

Bios configuration already performed as below:

Advanced:

  Advanced System Agent (SA) configuration

    Graphics Configuration:
      Primary Display: Auto (probably could be set to PEG)
      IGPU Multi-Monitor: Disabled

    Memory Configuration:
      Memory Remap: Enabled (above 4GB)

    PCI Subsystem Settings
      Above 4G Decoding: Enabled
      Resize Bar: Enabled
      SR-IOV Support: Enabled
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What if you disable “Resize BAR”?

Does the BIOS on that Z790-P board have any settings around MMIO size or MMIO base?

When you say the system doesn’t boot, does it end up showing an error from the BIOS (after awhile, when the BIOS has exhausted all it’s attempts to fit the PCI devices into the address space), or never displays anything on the 4090, or ?

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I have tried with both Disable and Enable “Resize Bar” option. But in either case its not working.