Skip to content
Search

Lm-sensors

lastmod 2025-12-04created 2023-06-053 edits

lm_sensors is a free and open-source software tool for Linux that provides tools and drivers for monitoring temperatures, voltage, humidity, and fans. It can also detect chassis intrusions.

Fancontrol

Checking CPU temperature 

sudo apt install lm-sensors

For configuration, install sensor-detect and enter yes for the sensors that check temperature. 

sudo sensors-detect

The sensors command shows the status and temperature of each component. 

sensors

The output looks something like this: 

nct6791-isa-0290
Adapter: ISA adapter
Vcore:                  +0.54 V  (min =  +0.00 V, max =  +1.74 V)
in1:                    +1.74 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
AVCC:                   +3.44 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
+3.3V:                  +3.44 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in4:                    +1.01 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in5:                    +1.06 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in6:                    +1.08 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
3VSB:                   +3.44 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
Vbat:                   +3.20 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in9:                    +1.06 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in10:                   +0.00 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in11:                   +1.02 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in12:                   +1.21 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in13:                   +1.27 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in14:                   +1.05 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
fan1:                     0 RPM  (min =    0 RPM)
fan2:                  3237 RPM  (min =    0 RPM)
fan3:                     0 RPM  (min =    0 RPM)
fan4:                   826 RPM  (min =    0 RPM)
fan5:                     0 RPM  (min =    0 RPM)
SYSTIN:                 +42.0°C  (high = +36.0°C, hyst = +35.0°C)  ALARM  sensor = thermistor
CPUTIN:                 +61.0°C  (high = +36.0°C, hyst = +35.0°C)  sensor = thermistor
AUXTIN0:                +22.0°C    sensor = thermistor
AUXTIN1:               +127.0°C    sensor = thermistor
AUXTIN2:                +25.0°C    sensor = thermistor
AUXTIN3:                +23.0°C    sensor = thermistor
PECI Agent 0:           +79.5°C  (high = +36.0°C, hyst = +35.0°C)  ALARM
                                 (crit = +100.0°C)
PCH_CHIP_CPU_MAX_TEMP:   +0.0°C
PCH_CHIP_TEMP:           +0.0°C
PCH_CPU_TEMP:            +0.0°C
intrusion0:            ALARM
intrusion1:            ALARM
beep_enable:           disabled

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +80.0°C  (high = +82.0°C, crit = +100.0°C)
Core 0:        +80.0°C  (high = +82.0°C, crit = +100.0°C)
Core 1:        +76.0°C  (high = +82.0°C, crit = +100.0°C)
Core 2:        +79.0°C  (high = +82.0°C, crit = +100.0°C)
Core 3:        +80.0°C  (high = +82.0°C, crit = +100.0°C)
Core 4:        +77.0°C  (high = +82.0°C, crit = +100.0°C)
Core 5:        +79.0°C  (high = +82.0°C, crit = +100.0°C)

To monitor component temperatures, use it together with watch. 

watch sensors

See also

Favorite site

author Zer0 sitemap