У линукс своя атмосфера.

у линукс своя атмосфера :-/

nagios@fs:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +36.0°C (high = +80.0°C, crit = +100.0°C)
Core 1: +39.0°C (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0003
Adapter: ISA adapter
Core 0: +35.0°C (high = +86.0°C, crit = +100.0°C)
Core 1: +34.0°C (high = +86.0°C, crit = +100.0°C)

плагин nagios парсит построчно и обстановку видит как:

nagios@fs:~$ /usr/lib/nagios/plugins/check_lm_sensors --list
found sensor Core 0 (36.0)
found sensor Core 1 (39.0)
found sensor Core 0 (35.0)
found sensor Core 1 (34.0)
 
а мониторит так:
nagios@fs:~$ /usr/lib/nagios/plugins/check_lm_sensors --high Core_0=50,60
LM_SENSORS OK - Core 0=36.0|Core 0=36.0;50;60;;
 

ну вы поняли =) 

Как исправить:

nagios@fs:~$ cat /etc/sensors.d/coretemp.cfg
chip "coretemp-isa-0000"
 label temp2 "P0_Core0"
 label temp3 "P0_Core1"

chip "coretemp-isa-0003"
 label temp2 "P1_Core0"
 label temp3 "P1_Core1"
 
БЛЖАД! почему, почему у нулевого кора параметр temp2???

итого:
nagios@fs:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
P0_Core0:     +36.0°C  (high = +80.0°C, crit = +100.0°C)
P0_Core1:     +39.0°C  (high = +80.0°C, crit = +100.0°C)

coretemp-isa-0003
Adapter: ISA adapter
P1_Core0:     +35.0°C  (high = +86.0°C, crit = +100.0°C)
P1_Core1:     +34.0°C  (high = +86.0°C, crit = +100.0°C)
 
nagios@fs:~$ /usr/lib/nagios/plugins/check_lm_sensors --list
found sensor P0_Core0 (36.0)
found sensor P0_Core1 (39.0)
found sensor P1_Core0 (36.0)
found sensor P1_Core1 (35.0)