Weird mobo temp readings

RockJake28

Honorable
Nov 15, 2012
10
0
10,510
Hi,

Ive got an ASRock 970 Extreme4 mobo and an FX-8350, and I'm looking at the temperatures (there are 4 readings).
1,2 and 4 all read around 40 C, but 3 fluctuates between 22 C and 85 C.

Any ideas what could cause readings like this?

Thanks.