dual boot dual gpu issue Gigabyte X670 Aorus Elite AX

MoneyT20

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AMD OS X Member
Feb 21, 2025
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7800x3d
I have a Gigabyte X670 Aorus Elite AX with a 4070ti in the primary slot and a rx480 in the 2nd pcie slot for booting Ventura. It only boots if the RX480 is in the 1st slot. If its in the 2nd slot even with the 4070ti removed it will not boot. I have attached my EFI and my disabled gpu file up with a screen shot of my pci route. if anyone can assit?
 

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Check your bios settings to see if there are any restrictions or limitations on the second x16 PCIe slot.
 
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