While cleaning the left exhaust (left when holding the laptop with the screen towards you) I noticed there where 2 tiny shinny things in 2 openings of
the heatsink, not bigger then the head of a needle (you got the red grate, behind that the heatsink i think). So I poke them with a needle and they came loose and fell out the laptop, 2 tiny round metallic marbles, slightly bigger then a grain of sand.
So I noticed at the right exhaust there's these 2 copper tubes or something, at the left there's only one tube which doesn't look like copper but has a chrome like metallic color, the same color as the marbles.
Could it be that the marbles are some side effect from soldering the metallic tube to the heatsink? The copper tubes at the right exhaust look smooth, but the metallic on the left not, thats why I think it is soldered.
I don't know how it's made so I'm probably making a fuss over nothing, but it was weird anyway.