M300 dual motherboard heat problem

After some hotend sparks (short),
There is an error message showing that the motherboard is too hot (130 deg).
However, when I checked the motherboard by opening the bottom plate, there aren’t any hot spots. (can touch by hands in all area)
Then, is it the motherboard problem?

Is it possible to solve by changing the motherboard…?

p.s. when It can be turned on, there are problem : M300 dual problem after hotend module replacement (+ some more)

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