Can't go up to 3.4 Ghz (all cores)

Up 7000 with N97 processor can go max to 2.9 Ghz (all cores)
but according to this site (,
this processor can go up to 3.4 Ghz (all cores).
I'm using Ubuntu 22.04 LTS last version.
Before writing this post i tried everything.
I think this behaviour is for a BIOS setting that can't be changed.