bios not saving

Hi, I have a gigabyte B450M H. I just overclocked my Ryzen 3 3300G to 4ghz (which it is capable of running), went to save the BIOS, the PC Black screened and didn't POST. I've taken out the CMOS Battery and reset the BIOS and the PC seems fine if I don't touch the BIOS at all. As soon as I enter...

Hi, as title suggests I have a gigabyte m/b a320m with the lastest bios (1.0.0.3 updated through @bios) and ryzen 3 1200, when I change multiplier/voltage in bios and then boot into win 10 nothing has changed, i use cpu z to check, have also tried using ryzen master to over clock but that also...