fabiosun

you should not see verbose output do for a couple of time

try config plist put above

did you wait a bit and always stuck there? if so you can try to disable -v in your boot arg and see if it works config.plist.zip

let see if it instal then we have to see if your gpu is accelerated and audio part 🙂 happy for you also for me because i thought i lost my touch (in hackintosh ) 🙂

config.plist.zip using aquantia Archive.zip using intel ones copy the kext in your /oc/kext folder try both separately (both config posted)

you should try with both lan you have but we have to modify your config if you like to try i will do for you let me know

ohhhhh ok we can try to enable your aquantia or the other one

config 2.plist.zip press space bar reset nvram then try again

could you connect both monitor on rx 6600 (leaving your 4090 inside)? and press space before launching your USB pen icon (then reset Nvram)

overwriteconfig.plist only with this config.plist config.plist.zip

post a video if you can from when you start the system and choose your usb sticks

this is not relevant (sorry) because i think it happens before you see the boot menu Or after? i mean apfs efi on rx amd gpu @khiletry this EFI and post a video disable on bios asus logo and fat boot please EFI 2.zip

in key management have you cleared secure boot keys? but it should be done because you see boot menu i would try to disable resize bar option and then also 4g in two different tries...but...now i am out of good ideas

this puzzle is intriguing 🙂 If you have time and will post all your bios settings (usually only boot section is useful) see if you have the virtualization option in the BIOS enabled or disabled in some bios part but always weird you cant see the initial booting stage

@khilecant you try a traditional monitor? very curious and weird we have this problem

it seems a reference one ( i didnt know AMD did ones) i could try a desperate try but only to see if you can do a step forward with your tv screen and your cables try to set CSM on in your bios and see (if you do not damage other installation on your system)

have you tried with differe GPU output ports? which model of GPU? it is weird and i am loosing hope because i have no others ideas

I know i am asking so much 🙂 could you put Rx 6600 in first slot? are you sure you are trying from my latest EFI? it seems you loose hdmi connection or there is always a signal also with black screen?

is it watercooled or you can remove easily it? because it is weird if your RX is working well in other os can you connect only a monitor to RX 6600 and try to boot to your USB as i see in your video? then will think to full installer problem 🙂 I have a doubt if it is a problem with installed 4090

bios settings are well done for OSX? usually is possible to load default settings, disabling secure boot keys and fast boot, also to set CSM off and UEFI on, 4G on should be enough for many setups

then with my efi you should see a "dos" verbose scrolling lines Boot menu i see there is from gtx 4090? We should see it on RX 6600 usb pen seems to be formatted well

it could be normal if you use 4090 try to connect your monitor(s) to rx6600 you should also prvide a full installer and not a recovery installer because in tahoe your ethernet card could not work and a recovery installers needs a working one ethernet

Do you mean also no video input of your bios scanning? or do you see opencore bootloader? you must start from your USB pen or disk and you have to format it in a proper way for EFI

@khile have you installed in black pcie slot your gpu? ssdt bridge is for the second Pcie gray slot

have you connected your monitor to rx 6600? in my EFI there is a bridge for latest PCIE slot of your motherboard (the address should be the same) do you see a boot menu? then i have put -v boot arg to your config.plist so you should see after bios stage an opencore bootmenu then an icon with your installer..and then some verbose scrolling text lines