Hi Artbio, Tks for sharing. I had found several DSDT words in one file which was extracted from an AMI BIOS, but its name is 'Single Link Arch Bios' in MMTOOL. Also, PCI Express and AGP are both in my Mother board Asrock alivedual-esata2, so I don't know if I should do the following steps to edit the DSDT, any advise for this case pls?