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Old 03-05-2014, 05:23 PM   #1
moisespedro
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CPU fan control on Linux/Slackware


How exactly does it work? Because I am running a dual-boot (Windows 8.1 64bits and Slackware 14.16 64bits) and on Windows my CPU is way more silent, making noise only on heavy activities. I noticed that, on Slackware, even when I let the PC idle (when I go away to do something else) the fan is always running, sometimes at maximum rate. It is not CPU nor RAM usage (I checked it). Anyways, how can I put the fan to be as silent on Slackware as it is on Windows?

Last edited by moisespedro; 03-07-2014 at 08:46 AM.
 
Old 03-05-2014, 09:16 PM   #2
Richard Cranium
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What motherboard do you have?
 
Old 03-05-2014, 09:25 PM   #3
moisespedro
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m5a78l-m lx, is it important?
 
Old 03-05-2014, 09:54 PM   #4
Richard Cranium
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Well, my ASUS MB is the one controlling the fans, so there's that.

What do you have CPUFREQ set to in /etc/rc.d/rc.modules? The default is "battery" which isn't great for a desktop that wants to save power.
 
Old 03-05-2014, 09:58 PM   #5
Richard Cranium
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Oh, I'm using a M4N98TD EVO on the system where I'm typing this. I've got CPUFREQ set to "on". gkrellm reports a CPU fan speed of ~4440 and a CPU temp of 111.2F at the moment. (Room temp is 80F to keep the cat happy and off my lap.)
 
Old 03-06-2014, 06:07 AM   #6
jtsn
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First make sure it is really the CPU fan, what makes the noise. If you have GPU fans, these are driver-controlled and usually run at full speed on Linux.
 
Old 03-06-2014, 07:35 AM   #7
guanx
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Quote:
Originally Posted by jtsn View Post
... If you have GPU fans, these are driver-controlled and usually run at full speed on Linux.
ATI user?
 
Old 03-06-2014, 12:28 PM   #8
moisespedro
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Quote:
Originally Posted by Richard Cranium View Post
Well, my ASUS MB is the one controlling the fans, so there's that.

What do you have CPUFREQ set to in /etc/rc.d/rc.modules? The default is "battery" which isn't great for a desktop that wants to save power.
Should I just set it to "On", instead? I've never change /etc/rc.d/rc.modules before. And to anyone who asked I can confirm it is the CPU fan. I am so close to it that I can actually see it spinning :P

EDIT: I think it worked, but not really sure

Last edited by moisespedro; 03-06-2014 at 08:22 PM.
 
Old 03-07-2014, 02:01 AM   #9
Richard Cranium
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What? You aren't running gkrellm so you can obsessively watch the goings-on of your system? (I'm using gkrellm to watch 2 other servers on my local network too. I just didn't show them in the screenshot.)
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Last edited by Richard Cranium; 03-07-2014 at 02:03 AM.
 
Old 03-07-2014, 08:46 AM   #10
moisespedro
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Originally Posted by Richard Cranium View Post
What? You aren't running gkrellm so you can obsessively watch the goings-on of your system? (I'm using gkrellm to watch 2 other servers on my local network too. I just didn't show them in the screenshot.)
I am just trying to see if it is being silent and it is. Every once in a while I check htop.
 
Old 03-07-2014, 11:30 AM   #11
Richard Cranium
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I'll have to pull your leg harder next time.
 
Old 03-07-2014, 12:31 PM   #12
moisespedro
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It didn't affect me this time
 
  


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