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03-05-2014, 05:23 PM
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#1
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Senior Member
Registered: Nov 2013
Location: Brazil
Distribution: Slackware
Posts: 1,223
Rep:
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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.
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03-05-2014, 09:16 PM
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#2
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Senior Member
Registered: Apr 2009
Location: McKinney, Texas
Distribution: Slackware64 15.0
Posts: 3,860
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What motherboard do you have?
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03-05-2014, 09:25 PM
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#3
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Senior Member
Registered: Nov 2013
Location: Brazil
Distribution: Slackware
Posts: 1,223
Original Poster
Rep:
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m5a78l-m lx, is it important?
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03-05-2014, 09:54 PM
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#4
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Senior Member
Registered: Apr 2009
Location: McKinney, Texas
Distribution: Slackware64 15.0
Posts: 3,860
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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.
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03-05-2014, 09:58 PM
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#5
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Senior Member
Registered: Apr 2009
Location: McKinney, Texas
Distribution: Slackware64 15.0
Posts: 3,860
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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.)
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03-06-2014, 06:07 AM
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#6
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Member
Registered: Sep 2011
Posts: 925
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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.
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03-06-2014, 07:35 AM
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#7
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Senior Member
Registered: Dec 2008
Posts: 1,190
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Quote:
Originally Posted by jtsn
... If you have GPU fans, these are driver-controlled and usually run at full speed on Linux.
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ATI user?
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03-06-2014, 12:28 PM
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#8
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Senior Member
Registered: Nov 2013
Location: Brazil
Distribution: Slackware
Posts: 1,223
Original Poster
Rep:
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Quote:
Originally Posted by Richard Cranium
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.
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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.
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03-07-2014, 02:01 AM
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#9
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Senior Member
Registered: Apr 2009
Location: McKinney, Texas
Distribution: Slackware64 15.0
Posts: 3,860
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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.)
Last edited by Richard Cranium; 03-07-2014 at 02:03 AM.
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03-07-2014, 08:46 AM
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#10
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Senior Member
Registered: Nov 2013
Location: Brazil
Distribution: Slackware
Posts: 1,223
Original Poster
Rep:
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Quote:
Originally Posted by Richard Cranium
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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I am just trying to see if it is being silent and it is. Every once in a while I check htop.
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03-07-2014, 11:30 AM
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#11
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Senior Member
Registered: Apr 2009
Location: McKinney, Texas
Distribution: Slackware64 15.0
Posts: 3,860
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I'll have to pull your leg harder next time.
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03-07-2014, 12:31 PM
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#12
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Senior Member
Registered: Nov 2013
Location: Brazil
Distribution: Slackware
Posts: 1,223
Original Poster
Rep:
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It didn't affect me this time
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