ASRock Forums : ITX-n3700 CPU Scaling Fedora 24 https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 20 Jun 2026 04:20:21 +0000 Mon, 15 Aug 2016 11:03:06 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=3239 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[ITX-n3700 CPU Scaling Fedora 24 : Thanks for this information, it...]]> https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15889&title=itxn3700-cpu-scaling-fedora-24#15889 Author: parsec
Subject: 3239
Posted: 15 Aug 2016 at 11:03am

Thanks for this information, it may help someone, someday.

Sorry, but most people use Windows, for reasons like the one you had. Plus they don't have the experience to know what to do.

When using Linux, you are basically on your own, besides Linux forums. At least Intel provides a bit of support with drivers, or links to where drivers can be found.
]]> Mon, 15 Aug 2016 11:03:06 +0000 https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15889&title=itxn3700-cpu-scaling-fedora-24#15889 <![CDATA[ITX-n3700 CPU Scaling Fedora 24 : Hmmm, switched back to intel_pstate...]]> https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15879&title=itxn3700-cpu-scaling-fedora-24#15879 Author: JustMeHere
Subject: 3239
Posted: 15 Aug 2016 at 1:03am

Hmmm, switched back to intel_pstate and cpu is scaling now.  Smile]]> Mon, 15 Aug 2016 01:03:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15879&title=itxn3700-cpu-scaling-fedora-24#15879 <![CDATA[ITX-n3700 CPU Scaling Fedora 24 : Yep this is the fix. Now working...]]> https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15859&title=itxn3700-cpu-scaling-fedora-24#15859 Author: JustMeHere
Subject: 3239
Posted: 14 Aug 2016 at 5:35am

Yep this is the fix.  Now working as expected:

[root@sip ~]# cpupower frequency-info
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us
  hardware limits: 480 MHz - 1.60 GHz
  available frequency steps:  1.60 GHz, 1.60 GHz, 1.52 GHz, 1.44 GHz, 1.36 GHz, 1.28 GHz, 1.20 GHz, 1.12 GHz, 1.04 GHz, 960 MHz, 880 MHz, 800 MHz, 720        MHz, 640 MHz, 560 MHz, 480 MHz
  available cpufreq governors: conservative userspace powersave ondemand performance
  current policy: frequency should be within 480 MHz and 1.60 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency: 480 MHz (asserted by call to hardware)
  boost state support:
    Supported: yes
    Active: yes

[root@sip ~]#


Running "dd if=/dev/zero of=/dev/null"

As expected one core in at full speed:
[root@sip ~]# cat /sys/devices/system/cpu/cpu?/cpufreq/cpuinfo_cur_freq
560000
480000
480000
1601000
[root@sip ~]#


Now just to figure out turbo.


Edited by JustMeHere - 15 Aug 2016 at 12:30am]]> Sun, 14 Aug 2016 05:35:45 +0000 https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15859&title=itxn3700-cpu-scaling-fedora-24#15859 <![CDATA[ITX-n3700 CPU Scaling Fedora 24 : I&#039;ve disabled intel_pstate...]]> https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15854&title=itxn3700-cpu-scaling-fedora-24#15854 Author: JustMeHere
Subject: 3239
Posted: 14 Aug 2016 at 2:42am

I've disabled intel_pstate and now I'm up at full CPU. I currently have speedstep turned off in UEFI.  Once I can get to the machine, I will turn that back on and post further updates.

There seems to be an issue with the intel_pstate and Fedora 24 with this Chipset maybe.

Here's some info on p-state: https://www.kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt

I enabled tracing and could confirm that the cores would not scale up.  
]]> Sun, 14 Aug 2016 02:42:00 +0000 https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15854&title=itxn3700-cpu-scaling-fedora-24#15854 <![CDATA[ITX-n3700 CPU Scaling Fedora 24 : I cannot get my ITX-N3700 to change...]]> https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15848&title=itxn3700-cpu-scaling-fedora-24#15848 Author: JustMeHere
Subject: 3239
Posted: 14 Aug 2016 at 12:41am

I cannot get my ITX-N3700 to change frequencies in Fedora 24...Google has been little help.

I'm running "dd if=/dev/zero of=/dev/null" x 3 times

[root@sip ~]# cat /sys/devices/system/cpu/cpu?/cpufreq/cpuinfo_cur_freq 
479937
479937
480000
480000

[root@sip ~]# cat /sys/devices/system/cpu/cpu?/cpufreq/scaling_governor
performance
performance
performance
performance

[root@sip ~]# cat /sys/devices/system/cpu/cpu?/cpufreq/scaling_max_freq 
2400000
2400000
2400000
2400000

[root@sip ~]# uptime
 12:39:04 up 13:19,  2 users,  load average: 3.03, 3.01, 2.59


I'm booting UEFI.  I have tried both settings for SpeedStep (enabled / disabled).  I have the system running in "Sport" mode.

Where else to look?  Help is appreciated.


Edited by JustMeHere - 14 Aug 2016 at 1:22am]]> Sun, 14 Aug 2016 00:41:33 +0000 https://forum.asrock.com/forum_posts.asp?TID=3239&PID=15848&title=itxn3700-cpu-scaling-fedora-24#15848