Common diseases of nut g3

Common failures of nut g3 are as follows:

1, the fan is a little loud. The third gear can be adjusted, and the lowest gear is acceptable;

2. Besides the fan sound, there is another sound, which seems to be the sound of electric current. I changed the goods once, and the problem is still the same. I don't know how lucky I am, but I still haven't changed it. There is also the problem that the current sound is a little firm, and any sound can hear the current sound;

3. Compared with other products of the same level, the resolution does not reach 1080P, which is inferior.