How to get the CPU Temperature info from Bios using c# ?

Question

How to get the CPU Temperature info from Bios using c# I gave a try to the code in http://stackoverflow.com/questions/2923984/cpu-temperature-monitoring-c

But no luck. enumerator.Current threw an exception.

How can i achieve this ? Thanks.

Error :

"This system doesn't support the required WMI objects(1) - check the exception file 
Not supported 

 at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
 at System.Management.ManagementObjectCollection.ManagementObjectEnumerator.MoveNext()
 at CedarLogic.WmiLib.SystemStatistics.RefreshReadings() in D:\Downloads\TempMonitorSrc\TemperatureMonitorSln\WmiLib\SystemStatistics.cs:line 25
 at CedarLogic.WmiLib.SystemStatistics.get_CurrentTemperature() in D:\Downloads\TempMonitorSrc\TemperatureMonitorSln\WmiLib\SystemStatistics.cs:line 87
 at TemperatureMonitor.SystemTrayService.CheckSupport() in D:\Downloads\TempMonitorSrc\TemperatureMonitorSln\TemperatureMonitor\SystemTrayService.cs:line 260"

Answer 1

Hi -

I'm having the exact same problem:

http://superuser.com/questions/183282/cant-query-cpu-temperature-msacpi-thermalzonetemperature-on-windows-embedded-7

The code in the link you cited is correct. My .exe works fine on Windows/XP and Windows/Vista (as long as I "run as Administrator" on Vista) ... but fails with the WMI error "not supported" on Windows Embedded 7.

At this point, I don't know if the problem is the OS (WES7) or my motherboard (an Intel DH57jg).

Answer 2

Although not ideal, the closest/best solution I have found is to use Speedfan (free), which can expose its probe information to external applications, via a memory-map. Somebody has done the C# conversion:

Reading SpeedFan shared memory with C#

"Building on what I spoke about in my previous post, lets say we want to access the data that SpeedFan provides from a C# application. As a small aside, reading information from the SMBus and other low level interfaces can only be done from the kernel. So applications like SpeedFan (HWMonitor, Everest, etc etc) generally run a driver at kernel level and then a front-end GUI to present the information.

In the case of SpeedFan, shared memory (actually its technically a memory mapped file on Windows I think) is used to communicate between the kernel driver and the userspace GUI application. Even better, the format of this file has been made public by the author of SpeedFan. So, enough talk, lets see some code!"

Answer 3

Have a look at OpenHardwareMonitor.