How to Get HardWare Information from CPU like Temparature,Voltage,FanSpeed. code in .

[madhu521]

I was using This Code...
//---Code---//

            ManagementObjectSearcher mySearcher = new ManagementObjectSearcher("root\\WMI","SELECT * from Win32_TemparatureProbe");          
 
 
            foreach (ManagementBaseObject obj in mySearcher.Get())
            {
 
                if (obj == null)
                {
                    label1.Text = "didn't find";
                }
                else
                {
                    label1.Text = obj["Accuracy"].ToString ();
                }
 
            }
 

//---Code End---//

But No RESULT.

Plz me code for How to Get HardWare Information from CPU like Temparature,Voltage,FanSpeed. code in .Net

Thanks

[pootle]

One obvious thing wrong - you have mis-spelt the WMI class name - it is "Win32_TemperatureProbe" (Tempe not Tempa).

For information about the temperature probe, check out:
http://msdn.microsoft.com/en-us/library/aa394493(VS.85).aspx

There is also a Win32_Fan class for fan speed (not sure if this is what you want...):
http://msdn.microsoft.com/en-us/library/aa394146(VS.85).aspx

And also a Win32_Processor for CPU voltage:
http://msdn.microsoft.com/en-us/library/aa394373(VS.85).aspx

HTH

[Plater]

Win32_TemperatureProbe is under root\CIMV2 not root\WMI
I was very interested in this for awhile, until I discovered that my Dell desktop does not contain any accessible temp probes. It contains ONE fan and one harddrive temp(which if anyone knows how to get at the harddrive temp, I would love to hear it)

[joedeene]

Win32_TemperatureProbe is under root\CIMV2 not root\WMI
I was very interested in this for awhile, until I discovered that my Dell desktop does not contain any accessible temp probes. It contains ONE fan and one harddrive temp(which if anyone knows how to get at the harddrive temp, I would love to hear it)

NOTE: This code is only tested on my Western Digital 120GB hard drive, and may not work on others! Also, you need to add System.Management as a reference (right-click on WindowsApplication1 and choose Add Reference)


*** Not my code

Imports System
 
Imports System.Management
 
Imports System.Windows.Forms
 
Public Class Form1
 
 
 
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
 
Try
 
Dim searcher As New ManagementObjectSearcher( _
 
"root\WMI", _
 
"SELECT * FROM MSStorageDriver_ATAPISmartData")
 
For Each queryObj As ManagementObject In searcher.Get()
 
Dim arrVendorSpecific As Byte() = queryObj("VendorSpecific")
 
MsgBox("Temperature = " & arrVendorSpecific(115))
 
Next
 
Catch err As ManagementException
 
MessageBox.Show("An error occurred while querying for WMI data: " & err.Message)
 
End Try
 
End Sub
 
End Class

this oughta do it, its not my code but i tried it, and i get the error "An error occurred while querying for WMI data: Access Denied" I dont get it, i am the administrator on my laptop

[Plater]

I was able to get a value of "31". I am going to guess that that is in degrees C.
thanks for the good find!

[joedeene]

no problem, but could u suggest a way that i can get it to work for me? like it says access denied, where the err.message is, when the msgbox pops up. i mean i am an admin

[Plater]

Are you sure you are an admin and not just a power user or something?
I had no trouble running it (once the two typos were corrected)
Maybe you can google admin priveldges for WMI? Maybe there is some setting somewhere that has to be checked to allow you to use it.
You're not doing it in a web application right?


Also, in your foreach loop, obj will never be null

[joedeene]

yes, there are only two accounts on my laptop, and the main administrator(default) for like safe mode, and than mine which i just double checked is an administrator also, i'm running vista, and what typos do u mean, could i see the exact code you run when all goes successful? and then i'll try and debug it on mine, and no im not online app, i am debugging straight from visual basic 2008 express edition

[Plater]

EDIT: Oops, I was thinking about the OPs original code not what you had posted. What you had worked fine for me.

And I would say that it's a vista thing. I'm on XP pro. Vista has different security. You will probably need to google "vista WMI security in .NET" or something. It might just be that the .NET CLR doesn't have the correct security settings for the local zone to use WMI?

[Curtis Rutland]

Vista does have a different security model. You will need to "run as administrator" even if you already have an administrator account. Kind of like "sudo" in linux.

So, I think for debugging you can right-click your Visual Studio link and click "Run as Administrator"

For running the app, right click the executable. Also, there should be a setting in the shortcut's property that says something about always running as administrator.

[joedeene]

hmm, maybe its just the visual studio express debugger doesnt have permissions, because i built the application, and i right-clicked and selected run as admin and it worked, and by golley, my temp is 162, that cant be good, and i clicked it again and ran it normal just by double clicking the shortcut and it showed the message box with 162 again, so i guess its the debugger, but i shouldnt havemy temp that high, whoo =/

[Curtis Rutland]

Well, you can turn off UAC in Vista. Then it's just like XP...everything is run as administrator. Plus, no more popup nag screens. But that's disabling a big security feature. So, can't recommend for or against, but it's a possibility.

[Plater]

It's possible the 15th byte is not always the temperature one. Might be dependant on the drive manufacturer yes?

[Curtis Rutland]

Yeah, my output is:
Temp: 0
Temp: 237

So I doubt that one of my drives is freezing and one is boiling. Maybe that's only for the Western Digital or whatever you got this code for.

[Plater]

You can grab a program that already does it for you (SpeedFan is one) and compare the values it tells you for temperature and check to see which one is which in the bytes.

[mccholai]

I received the same error.. Ordinary user with Administrator Account is not enough.. I think so..

I have Enabled the Administrator account
1. Open cmd prompt.. (Run as Administrator)
2. net user Administrator /active:yes
( Check whether Adminstrator account is already active or Not
by running command.
net user
It wil display list of users.
Administrator Guest (UrUsername)
)
3.Turn off Firewall.
..
Then try

To Activate Administrator Account see
http://www.howtogeek.com/howto/windo...windows-vista/

[danp129]

If you don't want to right-click and run-as administrator you can do this:

In your app.manifest, set the requestedExecutionLevel to this:

          <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
 

Clean your output folder and recompile. When you open the exe it will prompt for elevated creditials.