Windows 2000 issue with PCIe cards?

[TheFighterJetDude]

So an issue I am having is I am trying to run 2000 on my 9900k and asus maximus xi hero and obviously acpi wont work so I had to use mps mode. The issue I am having is that in mps multiprocessor mode my pcie ethernet adapter is not detected, while in standard pc mode it is. I even tested it by installing my network card in standard pc mode, and I had an internet connection. But when I switched to MPS Multiprocessor, I lost my internet connection and would not detect my ethernet card (or my nec usb card) again. I really dont want standard pc mode because then I can only use 1 core, I am not sure if there is a bios setting I need to change, my i3 9100f and gigabyte b365m-ds3h rig works fine with mps the ethernet is detected properly

 

https://drive.google.com/file/d/1B1tRlFablK6ZV-LIjLXKpHqpKG-rBAq1/view?usp=drivesdk

 

https://drive.google.com/file/d/1B4ajPzP_BS95mZjxF5TF32zW99nfKZ78/view?usp=drivesdk

 

 

[Tripredacus]

I have doubts it is relating to the OS, rather how the firmware makes the information about installed devices available to the OS for enumeration. The question I would have is where that information is kept (or being read from) when Standard PC HAL is being used, since it wouldn't in the MPS table, and (apparently) not an ACPI table.