If you're looking for a 100.0 MHz BCLK instead of 100.1 MHz, then you may want to enable BCLK rounding: go to AIDA64 / Preferences, press the OK button, close AIDA64, navigate to AIDA64 installation folder, open the file called AIDA64.INI for editing, search for the line that starts with RoundedFSB= , and change it to RoundedFSB=1
Make sure to use the latest AIDA64 beta build available at:
https://www.aida64.com/downloads/latesta64xebeta