Are there any utilities to change the base frequency and FSB multiplier?

Question

Iron

As you know, the FSB system bus is outdated, but still, are there utilities for changing the base frequency and multiplier outside the BIOS?

Answer 1

Try: www.hw.by/articles/148.html
But after that my system became unstable, so I don’t advise doing it outside bios

Answer 2

Only from the motherboard manufacturer, if any.