Feature Request: CPU Temperature about windows_exporter HOT 8 CLOSED

Hi!
That would be interesting for sure. However, I don't seem to get any values in those WMI classes. Do your systems report anything there?

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https://github.com/openhardwaremonitor/openhardwaremonitor reports useful hardware stats and appears to do some of it through WMI queries. Perhaps this would be a useful source of inspiration.

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@sandersaares I had a quick browse through the code, and as far as I can tell, they don't use WMI for actually getting temperatures etc, but only for probing what hardware is installed? They do register a custom WMI provider as well, which I couldn't see what they actually used for, though.
Did you see any concrete usage of WMI to get the temperatures that I missed?

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No, I just quickly rifled through the code and saw some WMI but I also did not see too direct of a connection. Guess it is no good then.

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hi @carlpett , actually, we really need this index. I have several windows machine for digital signage. They are installed inside the bus stop smartpole, digital advertising box. They are often overheating and make windows system slowly. I need these cpu temperature index to verify is it overheating or not.

for now our solution is login into remote iot computer and open some GUI software to check cpu temperature. but I will never know when it will happen, unless I have this index to report to our prometheus

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The documentation above states that

Most of the information that the Win32_TemperatureProbe WMI class provides comes from SMBIOS. Real-time readings for the CurrentReading property cannot be extracted from SMBIOS tables. For this reason, current implementations of WMI do not populate the CurrentReading property. The CurrentReading property's presence is reserved for future use.

I played around this script and found that the temperature returned is unchanging likely because of the issue above.

Unless there's features elsewhere, it looks like WMI doesn't support temperature readings at this time, unfortunately

Edit: After playing around with that script some more & reading more documentation on MSAcpi_ThermalZoneTemperature, it looks like that will work on some systems where the hardware allows it. I have seen the temperature change at this point, though it doesn't seem to be real time. Could be worth investigating

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This is promising. Ran some bench marks and the value seems to be updating in real time

wmic /namespace:\\root\cimv2 PATH Win32_PerfFormattedData_Counters_ThermalZoneInformation get Temperature

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With the merge of #359, we can close this. Thanks Stewart!

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