My Fujitsu lifebook series laptop shuts down after all the cleaning and applying thermal compound. Please what could be the pr

[easaana]

My Fujitsu lifebook series T902 shuts down after few minutes. I have cleaned all dirts/durst, fan works fine, i have applied thermal compound too. Please what could be the problem?

 

[Prostar Computer]

Have you checked temperatures? If so, it could be electrical or electronic failure (hard to pinpoint).