Does your native CPU power management work?

[TomHsiung]

Many people with 9-series MBs and Haswell cores could not make native CPU power management works, including me. The phenomenon is that the Intel Power Gadget shows a high CPU frequency even in idle status.

Tom

 

[kafky]

I have some problems with cpu management after upgrading to Sierra on a Haswell with a 97 motherboard... Sleeping issues

 

[TomHsiung]

I have some problems with cpu management after upgrading to Sierra on a Haswell with a 97 motherboard... Sleeping issues

Make sure your Intel Power Gadget displays a normal curve.

 

[vulgo]

Make sure your Intel Power Gadget displays a normal curve.

Intel Power Gadget is not a true indication of working CPUPM on Sierra.

 

[VioletDragon]

Many people with 9-series MBs and Haswell cores could not make native CPU power management works, including me. The phenomenon is that the Intel Power Gadget shows a high CPU frequency even in idle status.

Tom

Intel Power Gadget is not a true indication of working CPUPM on Sierra.

Looking at X86PlatformPlugin in ioreg will indicate if Native Powermanagement is working.

 

[TomHsiung]

Intel Power Gadget is not a true indication of working CPUPM on Sierra.

At least, my issue is that the Intel Power Gadget shows a constant CPU frequency (nearly a straight line) all the time (during idle).

Tom

 

[VioletDragon]

At least, my issue is that the Intel Power Gadget shows a constant CPU frequency (nearly a straight line) all the time (during idle).

Tom

Take a look in ioreg and see if X86PlatformPlugin is loaded if not there Powermanagement isn't working. [Guide] How to Make a Copy of IOReg | tonymacx86.com

 

[vulgo]

To check out CPUPM only

ioreg -c X86PlatformPlugin | grep CPUPStates

if it is working you will see something similar to

| | |   |   "CPUPStates" = ({"Frequency"=3600,"PState"=0},
{"Frequency"=3500,"PState"=1},{"Frequency"=3400,"PState"=2},
{"Frequency"=3300,"PState"=3},{"Frequency"=3200,"PState"=4},
{"Frequency"=3100,"PState"=5},{"Frequency"=3000,"PState"=6},
...

 

[TomHsiung]

Take a look in ioreg and see if X86PlatformPlugin is loaded if not there Powermanagement isn't working. [Guide] How to Make a Copy of IOReg | tonymacx86.com

Files attached. Check please.

 

[VioletDragon]

Files attached. Check please.

Ioreg shows that X86PlatformPlugin is loaded along with AGPMController. AppleLPC is also loaded. Only thing is that SATA is coming under SAT0 should be under SATA in ioreg.