Thank you for your answer, Fiery.
Maybe I didn´t express well, because of my insufficient english skills.
I didn´t wanted to say, that this behaviour is a bug of Aida64 and so far as I know Aida64 measures BCLK only one time at startup.'
My BCLK is set to 100 MHz but varies between 99.9 and 100 MHz, due to default activated VRM-Spreading. Most of the time BCLK shows exactly 100, but even then, the clocks often are somewhat like 799-4798 MHz etc. (I suppose of not shown decimal places like 100,03).
Is there a way to configure Aida64 in a config.file, so that I can define a static BCLK of 100 MHz?