MB AUXTIN temperature hit 416°C (780ºF)?

Hello,

I smelled something bad near my computer, like something burning, not strong but enough to worry me.

I checked the temperatures using CPUID HWMonitor, and everything seemed fine. Then I ran a some video conversion programs to increase CPU/GPU usage to max, and I got this:

http://img577.imageshack.us/img577/7789/wtfbnb.png

CPU got up to 97°C, GPU up to 91°C, but there something called AUXTIN in the Motherboard section that reached 416°C!!

Can anyone help me telling me what that is, and if my CPU/GPU temperatures are within limits?

Thanks in advance.