fan goes full at startup and then laptop shut own
Hello, I have an old dell latitude D531 that I got refurbished a year ago.
It was short of fine for a year but it started failing lately. It was having some flickering while playing videos and it eventually started shutting down.
I though it is overheating so I cleaned up the fan and used hwinfo to check for temps, everything was looking normal so I though it was probably just blocked fins from the dust on the cooling system.
Then it started doing it again and eventually it couldn't go past the post screen at all.
In both cases before the shut down the fan was suddenly turn up on higher rpm and reported temps where pretty normal, and now it does it from a cold start (and it is not even hot in the room).
I left it for a couple of months because I was busy and this week I opened it to replace the thermal place and clear the fan from the inside.
It worked well for a week and now the same things happens. I open it, the fan goes full rpm and then it shut down before even show windows logo. I suspect a faulty temperature sensor but I just pulled it out of my head, I don't have any solid evidence.
Any idea what I can do with this?
Is this a good question?