On Ubuntu and Debian Distros
# apt install lm-sensors
On Fedora 26 and RPM Linux distros
# dnf install lm_sensors
Once the installation is done, run the following commands to check your current hardware specifications.
# sudo sensors-detect
It will ask you few questions. Answer Yes for all of them.
$ sensors coretemp-isa-0000 Adapter: ISA adapter Core 0: +29.0°C (high = +76.0°C, crit = +100.0°C) [...] it8718-isa-0290 Adapter: ISA adapter Vcc: +1.14 V (min = +0.00 V, max = +4.08 V) VTT: +2.08 V (min = +0.00 V, max = +4.08 V) +3.3V: +3.33 V (min = +0.00 V, max = +4.08 V) NB Vcore: +0.03 V (min = +0.00 V, max = +4.08 V) VDRAM: +2.13 V (min = +0.00 V, max = +4.08 V) fan1: 690 RPM (min = 10 RPM) temp1: +37.5°C (low = +129.5°C, high = +129.5°C) sensor = thermistor temp2: +25.0°C (low = +127.0°C, high = +127.0°C) sensor = thermal diode
root@host:~# sensors nct6106-isa-0a10 Adapter: ISA adapter in0: +0.96 V (min = +0.00 V, max = +1.74 V) in1: +1.54 V (min = +0.00 V, max = +2.04 V) in2: +3.34 V (min = +0.00 V, max = +4.08 V) in3: +3.20 V (min = +0.00 V, max = +4.08 V) in4: +1.05 V (min = +0.00 V, max = +2.04 V) in5: +1.04 V (min = +0.00 V, max = +2.04 V) in6: +1.66 V (min = +0.00 V, max = +2.04 V) in7: +3.12 V (min = +0.00 V, max = +4.08 V) in8: +2.10 V (min = +0.00 V, max = +4.08 V) fan1: 0 RPM (min = 0 RPM) fan2: 1800 RPM (min = 0 RPM) fan3: 0 RPM (min = 0 RPM) SYSTIN: +46.0°C (high = +0.0°C, hyst = +0.0°C) ALARM (crit low = +127.0°C, crit = +127.0°C) sensor = thermal diode CPUTIN: +127.0°C (high = +80.0°C, hyst = +75.0°C) ALARM (crit low = +127.0°C, crit = +127.0°C) sensor = thermistor AUXTIN: +24.0°C (high = +80.0°C, hyst = +75.0°C) (crit low = +127.0°C, crit = +127.0°C) sensor = thermal diode PECI Agent 0: +64.0°C (high = +80.0°C, hyst = +75.0°C) (crit low = +127.0°C, crit = +75.0°C) PECI Agent 1: +0.0°C (high = +80.0°C, hyst = +75.0°C) (crit low = +127.0°C, crit = +127.0°C) PCH_CHIP_TEMP: +0.0°C PCH_CPU_TEMP: +0.0°C intrusion0: ALARM beep_enable: disabled acpitz-virtual-0 Adapter: Virtual device temp1: +27.8°C (crit = +92.0°C) temp2: +29.8°C (crit = +92.0°C) coretemp-isa-0000 Adapter: ISA adapter Package id 0: +64.0°C (high = +87.0°C, crit = +91.0°C) Core 0: +64.0°C (high = +87.0°C, crit = +91.0°C) Core 1: +64.0°C (high = +87.0°C, crit = +91.0°C)
root@host:~# pwmconfig File /var/run/fancontrol.pid exists. This typically means that the fancontrol deamon is running. You should stop it before running pwmconfig. If you are certain that fancontrol is not running, then you can delete /var/run/fancontrol.pid manually. root@host:~# service Usage: service < option > | --status-all | [ service_name [ command | --full-restart ] ] root@host:~# service fancontrol stop root@host:~# pwmconfig # pwmconfig revision 6243 (2014-03-20) This program will search your sensors for pulse width modulation (pwm) controls, and test each one to see if it controls a fan on your motherboard. Note that many motherboards do not have pwm circuitry installed, even if your sensor chip supports pwm. We will attempt to briefly stop each fan using the pwm controls. The program will attempt to restore each fan to full speed after testing. However, it is ** very important ** that you physically verify that the fans have been to full speed after the program has completed. Found the following devices: hwmon0 is acpitz hwmon1 is coretemp hwmon2 is nct6106 Found the following PWM controls: hwmon2/pwm1 current value: 127 hwmon2/pwm2 current value: 255 Giving the fans some time to reach full speed... Found the following fan sensors: hwmon2/fan1_input current speed: 0 ... skipping! hwmon2/fan2_input current speed: 2749 RPM hwmon2/fan3_input current speed: 0 ... skipping! Warning!!! This program will stop your fans, one at a time, for approximately 5 seconds each!!! This may cause your processor temperature to rise!!! If you do not want to do this hit control-C now!!! Hit return to continue: Testing pwm control hwmon2/pwm1 ... hwmon2/fan2_input ... speed was 2749 now 2772 no correlation No correlations were detected. There is either no fan connected to the output of hwmon2/pwm1, or the connected fan has no rpm-signal connected to one of the tested fan sensors. (Note: not all motherboards have the pwm outputs connected to the fan connectors, check out the hardware database on http://www.almico.com/forumindex.php) Did you see/hear a fan stopping during the above test (n)?#此时应该是测了风扇1，并没有听见停止，所以选n Testing pwm control hwmon2/pwm2 ... hwmon2/fan2_input ... speed was 2749 now 1205 It appears that fan hwmon2/fan2_input is controlled by pwm hwmon2/pwm2 Would you like to generate a detailed correlation (y)? Note: If you had gnuplot installed, I could generate a graphical plot. PWM 255 FAN 2743 #风扇转速等级，后面会用到 PWM 240 FAN 2721 PWM 225 FAN 2657 PWM 210 FAN 2571 PWM 195 FAN 2495 PWM 180 FAN 2385 PWM 165 FAN 2268 PWM 150 FAN 2142 PWM 135 FAN 1982 PWM 120 FAN 1809 PWM 105 FAN 1601 PWM 90 FAN 1383 PWM 75 FAN 1259 PWM 60 FAN 1201 PWM 45 FAN 1201 PWM 30 FAN 1201 PWM 28 FAN 1198 PWM 26 FAN 1193 PWM 24 FAN 1195 PWM 22 FAN 1201 PWM 20 FAN 1200 PWM 18 FAN 1208 PWM 16 FAN 1208 PWM 14 FAN 1206 PWM 12 FAN 1197 PWM 10 FAN 1203 PWM 8 FAN 1207 PWM 6 FAN 1215 PWM 4 FAN 1204 PWM 2 FAN 1203 PWM 0 FAN 1194 Testing is complete. Please verify that all fans have returned to their normal speed. The fancontrol script can automatically respond to temperature changes of your system by changing fanspeeds. Do you want to set up its configuration file now (y)? y#百度英文意思 What should be the path to your fancontrol config file (/etc/fancontrol)?#风扇控制文件位置 Loading configuration from /etc/fancontrol ...
Select fan output to configure, or other action: 1) hwmon2/pwm2 3) Just quit 5) Show configuration 2) Change INTERVAL 4) Save and quit select (1-n): 1 #开始自定义 Devices: hwmon0 is acpitz hwmon1 is coretemp hwmon2 is nct6106 Current temperature readings are as follows: hwmon0/temp1_input 27 hwmon0/temp2_input 29 hwmon1/temp1_input 63 hwmon1/temp2_input 61 hwmon1/temp3_input 63 hwmon2/temp1_input 45 hwmon2/temp2_input 127 hwmon2/temp3_input 24 hwmon2/temp7_input 61 hwmon2/temp8_input 0 hwmon2/temp9_input 0 Select a temperature sensor as source for hwmon2/pwm2: 1) hwmon0/temp1_input #选择一个连接的温度，因为我想得到一个较低的转速，所以选择了一个较低的温度 2) hwmon0/temp2_input 3) hwmon1/temp1_input 4) hwmon1/temp2_input 5) hwmon1/temp3_input 6) hwmon2/temp1_input 7) hwmon2/temp2_input 8) hwmon2/temp3_input 9) hwmon2/temp7_input 10) hwmon2/temp8_input 11) hwmon2/temp9_input 12) None (Do not affect this PWM output) select (1-n): 1 #选择低温的1）hwmon0/tem1_input Enter the low temperature (degree C) below which the fan should spin at minimum speed (20): 25 #风扇应以最低速度旋转 Enter the high temperature (degree C) over which the fan should spin at maximum speed (60): 90 #风扇应以最大速度旋转 Enter the PWM value (0-255) to use when the temperature is over the high temperature limit (255): 90 #输入PWM值（0-255），以便在温度超过温度极限时使用.此处就用到了之前说的风扇等级转速 #我选择的90对应的转速即为：1383 这个应该就是降低转速的重点 Select fan output to configure, or other action: 1) hwmon2/pwm2 3) Just quit 5) Show configuration 2) Change INTERVAL 4) Save and quit select (1-n): 4 #选择4 保存退出 Saving configuration to /etc/fancontrol... Configuration saved root@host:~# vim /etc/fancontrol #检查一下文件内容 root@host:~# service fancontrol start #开始运行风扇控制，风扇速度立马降下来了！
root@host:~# cat /etc/fancontrol
Configuration file generated by pwmconfig, changes will be lost