Originally Posted by Undervolter
This is odd... Do you have Cool N Quiet enabled in BIOS? Also power profile "balanced" in Windows? The problem is, you can't stress test if PSCheck doesn't see the P-States. Cause if it can't see them, it can't lock them... I don't know why it doesn't see them. Your 8core should have probably similar P-states to my FX6300...
Windows doesn't actually use any states but P0 and P4 for me, so that's that. I have it on Balanced and Cool N Quiet enabled. Maybe it's something I did with the registry sometime, though that was more about core parking and I presumably re-rolled that, oh well.