I have Acer VN7-791G and my 860m is never past 66 degree so it is very cold.So i want overclock too much (I don't see any problem).I already overclocked +135 (core clock).But I want to past that limit.I tried to edit vbios but nvflash and gpu-z not saved it. gpu-z says bios reading not supported nvflash says ERROR: Error: Display adapter's EEPROM ID process failed.I tried acer's offical vbios 1.11 opened it.I extracted exe and fd file with phoenixtool. in extracted dump files i can open a 102kb file with maxwwell bios tweaker then changed base core clock (1020 to 1100).But i can't repack it again phoenixtool need slic file.And i can't flash that edited 102kb file too.any suggestions?