For this particular laptop (and most others), you need to find the copper heat sink that leads to the grill (see the photo in the post). Unfortunately, it isn't easy to do properly... perhaps it is possible to use some compressed air to blow the dust out (stop the fan from spinning as the air might spin it too fast).
To do it properly, you need to remove the whole sink array... which means removing the sink from the CPU/GPU... carefully, as it can bend which will render it much less effective. That means you can remove it like I have and just clean it properly with a cloth.
However, this means that you need to replace the whole heat sink, which means that you will need to clean the thermal surface (heat spreaders) on the CPU/GPU interface and then repaste with thermal compound.
You probably should do this anyway if you know how, as the factory applications can be a bit too thick and use bad quality thermal paste.
For this particular laptop (and most others), you need to find the copper heat sink that leads to the grill (see the photo in the post). Unfortunately, it isn't easy to do properly... perhaps it is possible to use some compressed air to blow the dust out (stop the fan from spinning as the air might spin it too fast).
To do it properly, you need to remove the whole sink array... which means removing the sink from the CPU/GPU... carefully, as it can bend which will render it much less effective. That means you can remove it like I have and just clean it properly with a cloth.
However, this means that you need to replace the whole heat sink, which means that you will need to clean the thermal surface (heat spreaders) on the CPU/GPU interface and then repaste with thermal compound.
You probably should do this anyway if you know how, as the factory applications can be a bit too thick and use bad quality thermal paste.
It sounded easy at first.
Once you do it once (or twice...) it is easy enough to do... if you have the time and patience!