C-States and advanced hotspots

Hi,

when I prepare an advanced hotspots analysis VTune always show me the warning shown in the attached image "141020 c-states warning.PNG".

As I often see "paused" sections in my analysis results it would be nice to check if this C-states problem effectively affects analyses done on my system. I have a Dell T7500. This is an older machine containing a Xeon X5650. When I look at the bios I see no option matching the one mentioned in the VTune warning ("Cn(ACPI Cn) report to OS". The "simplified" Dell bios options only allow me to adjust some more basic ACPI settings such as "ACPI" or "RAID On".

When using the Dell CCTK tool I can read out some more detailed settings, but even in those I don't find the problematic option mentioned in the VTune warning (see attached image "141020 dell acpi.PNG").

Can someone point me to more details about the "Cn(ACPI Cn) report to OS" option, what it does, and where I can possibly find it in a Dell bios?

Regards, Hagen