acpi_perf error

[Zoran Kolic]

Hi all!
I've seen this error some 300 times
at the beginning of boot process.
System goes up and works with no issue.
It is nforce3 250 with amd64, 6.0 os.
Using sysctl, I've found the line:
dev.acpi_perf.0.%driver: acpi_perf
In bios acpi apic is turned off, due to
acpi errors from 5.4 era. Kernel includes
cpufreq and powerd is in rc.conf.
Is there any known command for sysctl
to change "driver"? Or should I put
apic back?
Would be nice to have temperature reading
on this mobo to compare cpufreq effect.
Best regards

                      Zoran