What is this sensor?

[Pat42]

My setup is:

Asus P7P55-M
i7-860
GTX260
8GB Corsair XMS3 DDR3

Can anyone tell me what the sensor speed fan is labelling as "aux" is in this screen shot, and should I be worrying that it is quite hot?

 

[R B Customs]

fairly common, it's just an unconnected sensor.

Q#18: What does the "Aux" temperature shown on the Computer / Sensor page mean?
A#18: There is no standard for sensor registers layout, so the "Aux" temperature could show the temperature of the CPU or the motherboard, or might be a non-connected wire of the sensor chip, and so it could show a bogus value.

 

[RJC]

Download HW Monitor and double check against Speedfan.

 

[SfnX]

ye ive seen that but on mine its around the 27-31 mark.
Check all components are at acceptable temps and dont worry =)