Hi,
So I was able to install Catalina 10.15.6 using opencore, however, I’m having an issue getting iMessage working whenever I’m using iMacPro1,1 SMBIOS. But if i use iMac18,2 or MacPro7,1 it’s working fine. I really like the iMacPro1,1 SMBIOS as my benchmark scores are higher when using it...