GA-H81M-DS2 rev. 2.1 Above 4g Decode

[NoobMaster2699]

i cant seem to find the above 4g decode option in hidden bios options using AMIBCP but if i use the string search, above 4g decode hows up but cant modify value from there obviously. Any help or clarification is appreciated.
https://www.mediafire.com/file/dsfliyrur...D.rom/file