Whats going on Mobo -55C on Speedfan? not even OC'd

[minipress]

Well
Speedfan was showing fine reading for ASUS Mobo till now. I have been using it for a fortnight now.

Just now, i got it started and its showing some -55C for Mobo.

Yes, i am not in some antarctica! Just switched on room AC though as it was some 35 C in the room, felt like .

CPU cores are looking fine & i haven't even over clocked my processor nor RAM! (Just in case its '55' and not '-55', though that not possible as processor temp was always almost10 C higher than mobo in past, whenever i have noticed)

What this can be? Esp when it was fine early?
Also there is some AUX, which always shows>80C. But i read a lot about it that it is some un-required reading! (let me know if you have more info about that too)

Thanks in advance.

 

[Aastii]

Speedfan isn't very good at temperature monitoring. Try out HW monitor instead and see what that says:

http://www.cpuid.com/softwares/hwmonitor.html

High or anomolous temperatures are usually either

stuck sensors,
unusable sensors, or
non-existant ones.

Power supplies are usually the main culprit, they will give either
very high temperatures,
very low temperatures, or
no reading at all

because they either don't have a sensor, but the monitoring software tries to find one,
have a sensor, but the program can't use it, so it creates a strange reading, or
the seonsor is stuck, so it always gives out the same, usually anomolous, reading