Question bios settings not changing, gigabyte m/b a320m-s2h-cf, ryzen 3 1200

[Jake_96]

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 makes no changes at all, I have disabled win 10 fast boot and re set bios by removing cmos battery (as i have alreday looked into this) but still noting is changing, i also disabled core perfonance boost in bios, this is a brand new m/b and processor, on my old machine I easy overclocked kavari a10 with no problems, any help here would be much appriciated, thanks in advance

 

[Jake_96]

update, I am just trying the latest amd ryzen chpset drivers suggested by cpu z tools

 

[Jake_96]

Ok so now the bios settings I change show the correct values whenever I boot into bios i.e 38x multiplier, but in cpuz only shows 31x multiplier @3ghz and win 10 task manager shows 3ghz active speed but does show base speed @3.75?? But...when I run cinebench it shows 3.8ghz speed?? I'm so confused at this point, I've read that task manager does not show accurate results but on my other system (kavari a10) when I over clock to 4ghz task manager shows 4ghz