powernow not working on AMD Athlon XP Mobile

Maurizio Lombardi m.lombardi85 at gmail.com
Wed Sep 14 13:15:59 PDT 2011

> You could try to set hw.acpi.cpu.pstate.strigent_check=0 in /boot/loader.conf. My K8 box needs that for it's messed up FID/VID.


I tried but the kernel freezes at boot.

It prints a lot of error like:

"cpu0: Invalid FID...."
"cpu0: Invalid VID..."

The last two lines it prints are a bit different:

"cpu0: min VID mismatch real 9, lim 11"
"cpu0: min FID mismatch real 50, lim 6"


Maurizio Lombardi

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