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wooptoo

Member

Registered: 2007-04-23

Posts: 81

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Sensors: two different readings for the same CPU

Hi,

My `sensors` outputs this:

atk0110-acpi-0
Adapter: ACPI interface
Vcore Voltage:       +1.10 V  (min =  +0.80 V, max =  +1.60 V)
 +3.3 Voltage:       +3.33 V  (min =  +2.97 V, max =  +3.63 V)
 +5 Voltage:         +5.16 V  (min =  +4.50 V, max =  +5.50 V)
 +12 Voltage:       +12.04 V  (min = +10.20 V, max = +13.80 V)
CPU FAN Speed:      1110 RPM  (min =  600 RPM, max = 7200 RPM)
CHASSIS1 FAN Speed:    0 RPM  (min =  600 RPM, max = 7200 RPM)
POWER FAN Speed:       0 RPM  (min =  600 RPM, max = 7200 RPM)
CPU Temperature:     +38.0°C  (high = +60.0°C, crit = +95.0°C)  <-------
MB Temperature:      +45.0°C  (high = +45.0°C, crit = +95.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +44.0°C  (high = +76.0°C, crit = +100.0°C)  <-------
Core 1:       +44.0°C  (high = +76.0°C, crit = +100.0°C)

As you can see there are two different readings for the CPU:

* one is from the motherboard CPU sensor (Asus ATK0110) and it gives 38.0°C
* the other is from the CPU on die sensor and it gives 44.0°C

The question is which one to trust since there sometimes is a 10°C difference between them.

Last edited by wooptoo (2012-04-29 17:28:50)

Terra-byte

Member

Registered: 2012-03-25

Posts: 11

Re: Sensors: two different readings for the same CPU

Personally, I would trust the CPU's on-die sensors.