The computer was not cleaned about 4 years and because of that the ventilation channels were clogged with dust. The thermal paste on the videochip and processor was dry and in bad condition. We cleaned all and put a new thermo paste.
Computers should be cleaned at least once in two years or even better every year. Otherwise the video card and processors getting too hot and because of overheating the logic board will bend and get various deformations.
