[SOLVED] How do I control case fan speeds?

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AJG
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[SOLVED] How do I control case fan speeds?

Post by AJG » Sat Jan 20, 2018 12:29 pm

Serena dual booted with an ASUS Z77 Sabertooth. In Windows 7, the case fan speeds are very low. I've had to lower the bios fan speed alarm thresholds to 400rpm just to boot the system. In Mint, the fans are always operating at high speed on boot. I believe it is the case fans that are spinning fast - not necessarily the processor. I've searched the forums and found references to a fan control utility, mostly for Ubuntu and mostly for laptops. I have Sylvia loaded on my Toshiba Satellite and don't seem to be having any issues there. On the desktop however, I believe I'm hearing the case fans rather than the CPU fan.
Thanks,
AJG
Last edited by AJG on Sun Jan 21, 2018 1:06 pm, edited 1 time in total.

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ClixTrix
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Re: How do I control case fan speeds?

Post by ClixTrix » Sat Jan 20, 2018 1:51 pm

With modern motherboards, I generally recommend letting BIOS adjust fan speeds using temp sensors to monitor.

How do you have the Chassis Q-Fan Control options set in BIOS?

Were you using a fan control utility in Windows 7?

I'm guessing you aren't using anything to check sensors. lm-sensors is normally used to get temps, voltages, and fans. I'm suggesting lm-sensors, as that is the basic monitoring utility for Linux, and hopefully will help determine which fans are running high and what temps are involved. Maybe figuring-out why fans are high is a good starting point.

Here's a link to it at arch. I would read it first.

https://wiki.archlinux.org/index.php/lm_sensors

You can install it from Terminal using the following command. Using sudo with a command will ask for password.

Code: Select all

sudo apt-get install lm-sensors
Then, run the following command and answer the questions with "y".

Code: Select all

sudo sensors-detect
Hopefully, it will detect all of the sensors on your motherboard and the kernel modules are already present for your chips.

To display sensors in terminal, just type "sensors". You can also get constant refresh using the command "watch sensors".
Linux Mint 18.3 x64 Cinnamon Kernel 4.15.0-32-generic
Gigabyte GA-AB350M-D3H (F20) / Ryzen 5 1600 / Micron Ballistix Sport DDR4 2400 2x8GB / XFX HD5450-1GB
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AJG
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Re: How do I control case fan speeds?

Post by AJG » Sun Jan 21, 2018 1:05 pm

Thank you ClixTrix - I do let bios control the fans. Presumably that's an ASUS utility. That said, every time I lose power, the bios resets to alarm if the fans are lower than 600 rpm which appears to be the default but the fans are always turning much slower on a cold boot. I have to lower the threshold to 300 to boot anything. I've replaced the battery to no avail.

There is no utility in Win 7 that I use.

I saw the arch linux thread and did install lm-sensors but sensors-detect had difficulty seeing any fans at all though it did give me the core temps. I installed xsensors and it was able to pick up all the case fans and the CPU and they were running at relatively low speeds (it is cold in my room). After I ran pwmconfig, I was able to see some of the fans, but not the Nvidia GPU. What it did show was something that initially confused me - a nouveau device which it couldn't get any information on.

Long story short, the fan that was maxed out in Mint was the Nvidia GPU which I didn't see pop up in sensors-detect at all. Turned out that a Nouveau driver was loaded when I installed Mint. Once I rolled back to an Nvidia driver, quiet fans and sensors-detect gave me all the fan data including for the GPU. So I'm going to mark this as solved for now while I monitor the GPU temps.

Thank you for the assist.
AJG

PS, I found this link pretty informative.
https://iandw.net/2014/10/12/fancontrol ... installed/

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ClixTrix
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Re: [SOLVED] How do I control case fan speeds?

Post by ClixTrix » Sun Jan 21, 2018 2:02 pm

Nouveau is the nouveau Open Source driver, which automatically installs for nVidea GPU. The Proprietary Driver installs from Driver Manager, as I assume you've discovered. Don't know which GPU you have, but the default-recommended is a good place to start. You're welcome.
Linux Mint 18.3 x64 Cinnamon Kernel 4.15.0-32-generic
Gigabyte GA-AB350M-D3H (F20) / Ryzen 5 1600 / Micron Ballistix Sport DDR4 2400 2x8GB / XFX HD5450-1GB
NVMe-SSD Samsung 960 EVO 250GB / SATA-HDD WD1600BEKT 160GB / SATA-SSD Toshiba OCZ VX500 512GB

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