sensor question

As I familiarize myself with HWiNFO, a few questions arise.

I have a 2 pin temperature sensor attached to the "OPT_TEMP3" pins on the motherboard (ASUS Rampage IV Black Edition) that is intended to read the ambient case temperature, but I do not see it in the HWiNFO sensor list. I see a "Temp3" item, but the value is not close... the case ambient runs near 34 or so.

Also, there are two CPU temperatures listed (not counting CPU (PECI)), but they do not appear to be duplicates.

And I do not see a temperature reading for the PCH.


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