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The K5100 card will not work - I tried it out before and had to sell it and go back to the K3100m Runs Monterey just fine to this day

Having some troubles enabling audio on an HP Zbook 17 G2 - currently running Monterey and just trying to get audio working. I have attached a zip file with pictures of the relevant info and a web search yielded the maker as "integrated device technology" or IDT but I have not been able to get this to work yet using the normal methods. Any help greatly appreciated, would like to get it working and upload the efi folder for others to use with these older workstation laptops. Thanks! Audiocard.zip

Hello - I saw your post while looking to see if any other users had more success than I with the M6800. I have made a post with a link to my working EFI folder with instructions. I figure you can try and see if this helps you out a little. Best regards and good luck!

I wanted to share this efi folder to help other users and to show my thanks to this site that has made this possible. Running: macOS Monterey Version 12.5.1 Intel(R) Core(TM) i7-4910MQ CPU @ 2.90GHz NVIDIA Quadro K3100M RAM 32.00 GB You will need to generate and enter your SMBIOS serial/ID numbers Everything works fine like: Speakers, Headphones, USB3, WiFi, Bluetooth, Video etc Install Notes: First I installed BigSur 16.8.60 using the OLA EFI folder for series 8 chip-set and though the graphics were crazy messed up I could see it was installing and after it was on the BigSur screen with the orange and purple background colors I found the m4800 efi folder online and used it to boot into a fully working system. From there I ran the Monterey installer directly from the applications folder for a normal upgrade process to version 12.5.1 - good luck! Video Notes: BigSur 16.8.60 iGPU and eGPU both work out of the box for me EDIT NOTE: I had to switch the kext I was using for Bluetooth to boot in Monterey - if you have the same wifi card I used this will need to be done (see the linked picture for Bluetooth) Moterey 12.5.1 you need to go get "Geforce Kepler patcher-V5.dmg" and patch the video to get the eGPU working System: https://ibb.co/FVTCnCV Hardware: https://ibb.co/FYC85By Monterey Bluetooth: https://ibb.co/F8ShW09 BigSur Bluetooth: https://ibb.co/xJsb2VD These are very nice old laptops you can find at affordable prices - I hope this helps, and if you have any way to contribute to this build feel free to post any additions! Cheers Dell Precision M6800 Monterey - Open Core EFI https://mega.nz/file/zrQEia4J#IyWM71DXJ4XUorMa0bQ8QZU9ZpsY5_vFyXdATB2IHqA