ATI 38xx BIOS editor (Finally!)

[lowtcell]

Once you have modified the BIOS the checksum should change unless the editor is clever enough to modify some non important part of the BIOS (e.g. display text) to set it so the checksum stored in the BIOS matches the BIOS checksum.

Well, all I can say is, the Bios editor app does a checksum correction at the end, and the checksum on original and new files are the same (7500)

I'm sorry, but I barely understand that checksum thing. What does it mean? TIA.

Basicaly, a checksum is a hex value that is used to verify the validity of a file. If you change content of a file (in this case the voltage values inside the bios file), the checksum of a new file will be different from the original. So now, you have to modify unneeded information in the file to make checksum equal. Most people change the text from the warning message built in to the bios that instructs you to plug in your power cable to accomplish this.

I hope that makes sense, I did my best to try to explain