Processor devices do not appear in hardware management, which usually occurs on AMD's a520/b550 motherboard and Intel's 600 series motherboard. This situation occurs from XP to win7. It will be work well from win8 beta 6.2.79xx or above. I tested 6.2.7880 and will not display it. I tested 6.2.7973 and can display it. I tried to replace modified acpi.sys with the old version, but Win7/beta7880 still doesn't display. Maybe my mod acpi.sys modification is incorrect. Mod BIOS may be fixed..