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Why not...?

post #1 of 6
Thread Starter 
Hm. ok, i risk looking an idiot asking this, but i'm curious...

Why don't fans run in reverse to clear dust buildup?. it would only need to do so for a few seconds, say, once every two weeks or so.....it may be messy. but it would certainly help temps, especially fans on radiators, CPU& GPU's
post #2 of 6
have no clue but would say it would be in there wiring. I just use a shop vac and suck all the dust out of mine every month or so.
post #3 of 6
It would kick the dust loose (just try flipping the reverse switch on your ceiling fan without cleaning the blades first, then watch the look on your obsessive-compulsive wife's face when she sees the resulting blizzard). However, all that dust would have to go somewhere, and Murphy's law would imply that it would all go to clog your heatsinks. I recommend sticking with a vacuum or a dustrag (turning off the power first, obviously - those blades hurt!).
    
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post #4 of 6
1) Why make fans more expensive?
2) It won't work as well since blade orientation is design for a specific direction
3) It won't work well since the fan won't have enough air pressure to remove caked on dust.
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post #5 of 6
I'd rather have the dust on my fans than in the air.
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post #6 of 6
wouldnt make a difference in the dust. the pulled out air needs to come from somewhere, and it will more than likely be full of dust particles.
    
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