Hopefully Yen can answer this question. Exactly how are the ISA.BIN files created? Can I make my own ISA.BIN files from the .bin files floating around? The ISA.BIN files seem to be about 1K in length, the SLIC .bin files are much shorter. Can you help me make ISA.BIN files from SLIC tables? In a related question, I have tried both the Dell ISA.BIN and the HP ISA.BIN with my Gigabyte GA-M55Plus-S3g motherboard. The Dell works perfectly and activates using the Dell certificate and Dell Ultimate key, the HP mod does not want to activate at all. I checked the HP mod with Everest and everything is fine, it shows RSDT and SLIC. The SLIC module is shown as HPQOEM and SLIC-MPC which is correct. When I use an HP Ultimate key and the HP certificate, it refuses to activate. Is there something wrong with the HP ISA.BIN file or the HP certificate maybe? I am happy with the Dell mod, but would like to be able to use the HP as well. Thanks for any help Yen, I appreciate it!!