Home & Garden4 mins ago
Dust-Off! Dangerous?
11 Answers
I've bought some compressed air to try to clean the back of my PC/fan and possibly my hairdryer fan- but am worried that it may do more damage to squirt clumps of dust further into the PC and maybe onto the circuit board. What do you think, and what is the best way of using this compressed air to clean things?
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For more on marking an answer as the "Best Answer", please visit our FAQ.yes air blaster is excellent but take off the side cover of your comp give all the fans a good blast BUT hold the blades so they don't spin while your doing this. i bought six cans of this off the net (a lot cheaper than a well know comp store)
the thing about using a vac is that you could give a static charge to the comps fittings also clumsily knock something out of place best give it a good blast and preferable if possible take the comp outside to do it,
the thing about using a vac is that you could give a static charge to the comps fittings also clumsily knock something out of place best give it a good blast and preferable if possible take the comp outside to do it,
OG...
As I'm sure you know, an electric motor is simply a generator in reverse... when it's working as a fan electricity goes into the motor and spins the fan to about 4000RPM max from 12V
If you blast the fan with compressed air you can easily spin the fan up to 3/4 times the normal speed so the 12v electric motor suddenly becomes a 36V+ generator and having 3+ times the rated volts going the wrong way round your motherboard can easily damage it.
(it's also not good for the fan bearings spinning them that fast)
As I'm sure you know, an electric motor is simply a generator in reverse... when it's working as a fan electricity goes into the motor and spins the fan to about 4000RPM max from 12V
If you blast the fan with compressed air you can easily spin the fan up to 3/4 times the normal speed so the 12v electric motor suddenly becomes a 36V+ generator and having 3+ times the rated volts going the wrong way round your motherboard can easily damage it.
(it's also not good for the fan bearings spinning them that fast)
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