What is this discoloration on the circuit?
Hi everybody, I just bought this 2012 Mac Mini, opened it up for upgrades, and noticed this discoloration on some of the circuits/soldering? I don’t know anything about this stuff, but just wondering what this is and if it’s a cause for concern. My first thought is that it’s heat damage or oxidation. If it’s bad, can it be fixed/cleaned?
thanks!
Esta é uma boa pergunta?