Arch Linux

bruno321

Member

Registered: 2010-03-05

Posts: 89

Controlling additional fan speed

I want to decrease the speed of a fan I have, connected to "system_fan 1": it is not the PSU's, nor the CPU's nor the GPU's.

I'm aware of https://wiki.archlinux.org/index.php/Fan_Speed_Control , but it seems to be only for controlling the CPU's.

I have already, though, installed lm-sensors, so here's the output of sensors:

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +43.0°C  (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1:       +46.0°C  (high = +80.0°C, crit = +100.0°C)

it8718-isa-0290
Adapter: ISA adapter
in0:          +1.25 V  (min =  +0.00 V, max =  +4.08 V)
in1:          +1.90 V  (min =  +0.00 V, max =  +4.08 V)
in2:          +3.30 V  (min =  +0.00 V, max =  +4.08 V)
+5V:          +2.98 V  (min =  +0.00 V, max =  +4.08 V)
in4:          +0.85 V  (min =  +0.00 V, max =  +4.08 V)
in5:          +0.00 V  (min =  +0.00 V, max =  +4.08 V)  ALARM
in6:          +0.05 V  (min =  +0.00 V, max =  +4.08 V)
in7:          +3.07 V  (min =  +0.00 V, max =  +4.08 V)
Vbat:         +3.34 V 
fan1:        1092 RPM  (min =   10 RPM)
fan2:           0 RPM  (min =    0 RPM)
fan3:        1101 RPM  (min =   10 RPM)
fan4:        2777 RPM  (min =   10 RPM)
temp1:        +37.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
temp2:        +39.0°C  (low  = +127.0°C, high = +70.0°C)  sensor = thermal diode
temp3:         -2.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
cpu0_vid:    +1.288 V

The "fan4" which is running at 2777 RPM is the one I'd like to control. How can I do it?

Thank you

siriusb

Member

From: Hungary

Registered: 2010-01-01

Posts: 422

Re: Controlling additional fan speed

You have to run pwmconfig as you read in wiki. After that you can tweak the config file /etc/fancontrol.