Speedfan for Win7-Excessively high temperatures

[europanorama]

I have an old friend who does not want to listen. He lets paper parked ontop of win7-pc-case to stop airflow outside pc.
normally is coming in at lower front and will go out ontop.

Since i have winxp configuration there is a bit different. Next time i will post a screen shot of the temperatures.
But here is the shock:
Auxtin0 54° C
Auxtin3 75° C which is very hot.
What are these two on MB?

Maybe installing a second Tempcontroller?
https://www.pcwelt.de/a/hardware-tem...780415&pm_ln=3

NB: Accidentally at the same day when i posted that link on FB i have a serious CPU-overheating-problem.
MB was shut down automatically. maybe because i programmed that in Cmos-Setup.

my pc is full and a foam was pressing against the fan which stopped this time rotating....just after that i left the room briefly. or i didnt hear the interruption. maybe i should have speakers on constantly and an alrm could be set.
Speedfan doesnt show up excessive heat in infobar automatically. NOT GOOD.
I could set to show CPU temp. but until now GPU was more delicate.
What is meant with AUX?