BIOS passthrough to VM for WIndows ROK software install 25.04

I read somewhere that installing BIOS locked software works in KVM, but it isn’t working for me. I have a Dell R730XD and a Windows 2022 VM under Fangtooth. When I try to enter the COA is fails because it can’t see that it is a Dell server. There are VM configuration changes that can be done on ESX and Proxmox to enable this, but I can’t see a way to change anything but the very basic configuration from the WebUI. Any ideas?