Fan running in full speed
Originally, my Imac had an internal sound problem. When playing music, video or whatever that requires the sound system to work, the internal speaker emitted something like alien talk. The technician came to replace the logic board, but then the fan is running in full speed. Now the old logic board is re-used, the sound problem disappeared but the fan is still running in full speed.
Now the technician need to take back my Imac and I hesitate.
I want to open my Imac, is there anything I can check?
Это хороший вопрос?