does turning on virtualization and hyper-v affect cpu bus speed?

Question

I have a computer running windows 8.1 pro with an intel 4690k i5 processor. It has a bus clock at 100 Mhz.

When I turn on Hyper-V to use virtual machines, the reported bus speed drops to about 98-99 Mhz.

Is my bus speed actually changing, or does hyper-v somehow affect the readings that programs like hwinfo64 or cpu-z take?

Answer 1

Set BusClock=0 in cpuz.ini and it will report the correct bus speed.