Hey all,

I recently upgraded and updated my server but i noticed that the CPU doesn't throttle back when it isn't utilized.

Unraid: 6.0.1

CPU: Intel i3 4170

Motherboad:  Gigabyte H97N-WIFI

 

The following command gives me: cat /proc/cpuinfo |egrep -i mh

cpu MHz        : 3700.144

cpu MHz        : 3652.882

cpu MHz        : 3700.000

cpu MHz        : 3700.144

 

Hope that anyone can help me with this.

Thanks in advance

 

-Rexl

 

There's another thread about this here http://lime-technology.com/forum/index.php?topic=36575.0

it was supposedly fixed, but it doesn't work for me (for whatever reason).

You can add intel_pstate=disable to your syslinux.cfg file, and it will use the older throttling driver.

 

The relevant section right under "timeout 50" would look like this:

label unRAID OS
  menu default
  kernel /bzimage
  append intel_pstate=disable initrd=/bzroot

 

Mine now throttles and consumes ~15-20 watts less at idle, with lower average temp.

I'd still like this fixed, but I seem to be a minority with this issue.

I'm still using the same fix as well, adding intel_pstate=disable in my syslinux.cfg file.

I'm still using the same fix as well, adding intel_pstate=disable in my syslinux.cfg file.

 

I assume this means yours was not throttling properly also?..

Did you notice increased temps and wattage as well?

Have not measured wattage or temp, but had seen higher reported cpu speeds when queried at the bash prompt. The new driver seems very quick to go full throttle.

Thanks for all the responses, I will get it tonight if the fix works for me!

 

-Rexl

Well I read the topic and it seems that the WebGUI indeed throttle all the cores to 100%, whereas with the  intel_pstate=disable statement the cores throttle more dynamic in the end it doesnt really matter that much power consumption wise. So I will keep it config file without the additional line.

 

Thanks for all the input!

 

-Rexl

 

ps. thread can be closed as it solved for me:)