CPU-Z not reporting same voltage as CPU Voltage

[vwgolfman]

Hi,
In my P6T SE's BIOS I have set my "CPU Voltage" to 1.225V

CPU-Z indicates that it is 1.216V
When I view the BIOS' "Hardware Monitor" page it also indicates 1.216V

Thinking it might be something to do with Speedstep I disabled it. Still the same.

Does anybody know why this difference exists?

Many thanks

 

[vwgolfman]

Thank you.

I had read about VDrop and I am surprosed at its effect even while navigating around the BIOS. That has to the lowest possible loading for the CPU other than the machine being turned off!