Download CRC anorak checker, open bios that u moded with it, and it will show you concurrent value, and expected value. Then u need to replace concurrent with expected one if they are not same.
https://github.com/AnorakTech/Anoraks-AMD-VBIOS-CRC-checker
https://gyazo.com/e5052a4fb7c2a2926477e05a3f96667f
Value after IBM if what u need to replace, u see it on screenshot.