Wrong CPU Temperature

[ObiTobi]

Hi,

is there a way to see real/ correct CPU temperature?

I have a older "AMD A10-5700 APU with Radeon(tm) HD Graphics" and with

Code:

sysctl -a | grep temperature
dev.cpu.3.temperature: 9.7C
dev.cpu.2.temperature: 9.7C
dev.cpu.1.temperature: 9.7C
dev.cpu.0.temperature: 9.7C

which is not true of course

 

[Patrick M. Hausen]

Does the board have IPMI? You could try ipmitool sensor.

 

[ObiTobi]

Unfortunately not

 

[Patrick M. Hausen]

There seem to be more people with that problem:

Reading core-temperature of A10 5700 processor

Hi, I want to read the die-temperature of A10 5700 processor. Using the "lm_sensors" and "sensors" packages, I have been able to read some temperature values, the output looks as follows...

community.amd.com

Perhaps the value is simply off by a factor of 10? 97°C would make sense for a CPU known to run rather hot.

 

[mistermanko]

There seem to be more people with that problem:

Reading core-temperature of A10 5700 processor

Hi, I want to read the die-temperature of A10 5700 processor. Using the "lm_sensors" and "sensors" packages, I have been able to read some temperature values, the output looks as follows...

community.amd.com

Perhaps the value is simply off by a factor of 10? 97°C would make sense for a CPU known to run rather hot.

That would be way beyond the temp limit/shutdown temp.

 

[NiCOOLaS]

I have the same problem with lowering the CPU temperature
AMD A10-5800K

Code:

root@truenas[~]# sysctl -a | grep temperature
dev.cpu.3.temperature: 10.7C
dev.cpu.2.temperature: 10.7C
dev.cpu.1.temperature: 10.7C

 

[p3dal]

I have the same problem with lowering the CPU temperature
AMD A10-5800K

View attachment 44703

Code:

root@truenas[~]# sysctl -a | grep temperature
dev.cpu.3.temperature: 10.7C
dev.cpu.2.temperature: 10.7C
dev.cpu.1.temperature: 10.7C

I also have the same problem. Running TrueNAS-13.0-U3

 

[p3dal]

This may be the solution, (to manually calibrate) I have not tried it yet: https://www.truenas.com/community/threads/amd-cpu-wrong-temperature-reading-thread-no-1-259.91019/

 

[NasNewb]

This may be the solution, (to manually calibrate) I have not tried it yet: https://www.truenas.com/community/threads/amd-cpu-wrong-temperature-reading-thread-no-1-259.91019/

Sorry for turning up an old thread... how does one calibrate the temp if you do not know the correct temp to begin with? I have an AMD FX(tm)-6120 Six-Core Processor and at idle it shows about 4C, highest I have seen is about 47C. Has anyone run with this CPU and know what value to adjust for proper temp?

 

[wakh]

I have the same problem with my AMD Phenom(tm) II X4 955 Processor (3210.91-MHz K8-class CPU)

sysctl give the following data:

root@freenas[~]# sysctl -a | grep temperature
dev.cpu.3.temperature: -0.0C
dev.cpu.2.temperature: -0.0C
dev.cpu.1.temperature: -0.0C
dev.cpu.0.temperature: -0.0C

root@freenas[~]# sysctl -a | egrep "amdtemp"
amdtemp0: <AMD CPU On-Die Thermal Sensors> on hostb4
device amdtemp
dev.amdtemp.0.core0.sensor0: -0.0C
dev.amdtemp.0.sensor_offset: 0
dev.amdtemp.0.%parent: hostb4
dev.amdtemp.0.%pnpinfo:
dev.amdtemp.0.%location:
dev.amdtemp.0.%driver: amdtemp
dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.%parent:

I read a FreeBSD manual and found that amdtemp module support only 10h, 11h, 12h, 14h, 15h, 16h, and 17h Family processors
(FreeBSD 13.1 manual)

But there is a k8temp module which support K-8 Family.
I tried to install this module using pkg, ports, pkg files, but it doesn't work.

When I used FreeNas based on 10.2 FreeBSD - the temperature was dispayed correctly.
I think the support K-8, K-10 Processor Family were excluded from newer release

Have you any idea how to solve this porblem?