[HELP] Can't get dual dGPU setup to work (6600XT & 3060Ti)

Hey everyone,

I've build a successful hackintosh, and everything is working fine - GPU, Bluetooth, Wifi, etc.However, I want to dual boot with windows and use both of my GPUs, one for each OS. I can't get that to work no matter what I try.

Currently, the 6600XT is on the 1st PCIe slot (x16) and it works fine.If I try to plug the 3060Ti to the 2nd PCIe slot (x4, but I don't mind - I benchmarked in on windows and its performing fine) then macos doesn't boot (black screen with support.apple link).If I try to switch them around and the put the 3060Ti on the 1st and 6600XT on 2nd it goes into boot loop.If tried using the 6600XT on the 2nd slot with nothing in the 1st, again black screen with support..Any of these combination do not seem to work. I tried all the various attempts at disabling the Nvidia card, with SSDT per device, Root address tweak in config.list, but nothing works.

Indeed, even with ONLY the 6600XT plugged in the 1st pcie I didn't manage to disable it (tried to see if I am getting the right acpi path). My guess is that there's something weird with my acpi paths (images below) as there are many pci-bridges.

Any ideas?

CPU: Intel i5-12400MB: Asus B660M D PLUSMemory:GPU: Saphire 6600XT / Gainward 3060TiWifi: BCM4360Bluetooth: BCM20702B0Audio: ALC897Ethernet: RTL8125Samsung 970 EVO Plus (Windows 11)WD Green 240GB (MacOs)MacOS: Ventura 13.4OpenCore: 0.9.3

attached images: IOREG Explorer

https://preview.redd.it/scms3a3w62db1.png?width=828&format=png&auto=webp&s=86cdfb25d9e2ba1c77265d178d19d5a540663650

Thank you!