Reported PCH temps

[doofus]

My PCH, like many others, is "cooking" and I have used various heatsinks etc over it to no avail.

Finally I have measured it with two electronic and one IR thermometer, and its temperature was for example 71C-72C but HWinfo reported 94C+. This is a significant difference between measured temps and reported temps.

Either the PCH is broken or Hwinfo is getting it wrong. Is there anyone else out there that can verify what's happening?

 

[Martin]

Which sensor is reporting this PCH temperature?

 

[doofus]

Which sensor is reporting this PCH temperature?

I am not sure   other than it says "Intel PCH". Does this help?

 

[Martin]

That means the temperature reported by HWiNFO should be the internal PCH temperature (measured by a diode inside the chip) and you measured the external surface temperature. That could explain the difference.
Which mainboard is that?

 

[doofus]

Yes that is certainly a possibility, but 23C is a very large difference from inside the tiny IC to surface, especially long term (ie not just spikes but steady long term temps).

This is a Dell Alienware 17 R5 mainboard.