@pastrychef
I got tired of my BT USB dongle and Tp-link PCI netcard, so I bought this instead (and a M.2 converter of course):
https://www.macmedic.dk/collections...r-2013-2017-wifi-kort-airport-bluetooth-board
Mounted it on the MB today. Booted up in Big Sur with your OC 0.7.6 EFI (with my own serial). I get an OC error "failed dropping A-something and a looong number" on boot up with your EFI, but it boots up afterwards. BT works OOB with this card, but WIFI not so much. I initially could log on to my WIFI, but speeds were VERY slow. 3-5 Mbps on a 1Gbps connection. My speed was typically 200-300Mbps with the Tp-link. Then suddenly it could connect to WIFI, but no IP address. I got a message with a hidden network?!? Never seen that before.
Tried to do clean install Monterey with your OC 0.7.6 EFI. After disk format and going on with the installer, I get an "A firmware update could not be installed" error during install. Then I have to choose a boot disk and then got a spinning cursor that never ends.
My hardware is same motherboard (same BIOS settings), 8700K w. Noctua cooler, Vega 56, WD NVME m.2 drive, 4x8GB Fury ram. No other HW installed on the system.
I'm in the middle of doing a clean Big Sur with my old "working" EFI as I'm writing this. The wifi-card should work and cut down on potential problems, right?
Thanks!