Motherboard temperature reaches 124° C?
Solution 1:
The sensor is not necessarily broken, the software could do bad interpretation of its data.
Check the temperatures with SpeedFan.
Solution 2:
Before you take the motherboard back to the shop due to Speccy not recognizing the correct temperature, let me add my two cents.
I have the exact same problem, the exact same temperature, even though my CPU and graphics card are running about at about 36C because I went overboard with case fans.
However, and this is what I feel may be relevant, I also have the exact same motherboard as you. Now, do we both have versions that function perfectly otherwise but where the MB temp sensor is broken, or could there be a problem with how this particular motherboard talks with Speccy?
Solution 3:
It might be that your motherboard's sensor is borked, because I think 124 degrees is extremely high, I think even past the dangerzone temperature where normally your system should shut down. The reason for this is that all the other components read out a relative low temperature. If your mobo was 124 degrees it would heat up the other components a lot more.
I think you better take it back to your shop to exchange it.