I have seen this problem recently. ThrottleStop has not changed. Intel might have released a microcode update that has changed how their CPUs work. My 10th Gen desktop CPU does not have this problem. When Speed Shift EPP is set to 0, my 10850K uses the maximum 50 multiplier on all threads. The speed is the same when the CPU is lightly loaded or when it is at full load.My cpu isn't at maximum speed
That is how it works. Look at the C states monitoring table. After you do this, the monitoring table should show 0.0 for everything.i checked the C states-AC box, but once i click apply it automatically unchecks