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To get rid of dust that had gathered near the fan, I put a vacuum cleaner to the air intake (with the computer turned off).
This removed the dust.
It also caused the fan to rotate at a fairly high speed. Quite faster than normal speed, judging from the sound.
Do I risk destroying stuff by doing this?
I have done this before. I accidentally put the air compressor too close and I snapped one of the fins off when the tip of the nozzle hit the heatsink fan. Wasn't good. The thing vibrated like crazy when I powered it up, had to replace the fan. I still clean it this way and haven't had any issues thus far. – qroberts – 2010-10-14T18:33:01.387