Howto Clean PSU ?

Markali_88

Honorable
Aug 6, 2012
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10,530
The bottom of my PSU by the vents is filled with dust. How do i clean this?

First instinct was to use compressed air but won't that blow all the dust into the PSU?

CAusing more problems?

elsewhere ive read that u shouldn't open ure psu. It's dangerous.

Any help will be appreciated.
Thanks
 
Solution
Yes, it is dangerous to open PSU.. just use a air blower and clean the dust off your PC.. it works every time for me.. :)

also blow against the fan at 45 degree angle such that the dust is blown out of the other vent.. i.e. the backside..

assuming that your PSU has two openings..

In case your PSU has just one opening (fan, keep the power supply off and unscrew it, blow the air, put the cover and screws back.
Yes, it is dangerous to open PSU.. just use a air blower and clean the dust off your PC.. it works every time for me.. :)

also blow against the fan at 45 degree angle such that the dust is blown out of the other vent.. i.e. the backside..

assuming that your PSU has two openings..

In case your PSU has just one opening (fan, keep the power supply off and unscrew it, blow the air, put the cover and screws back.
 
Solution


I used to open my PSU to clean and take note my PSU is a generic and lived 5 years I opened it and clean the dust inside screw it back and I boot my system, its not dangerous as long as you careful, I use buds to roll the dust
 
Compressed air is the way to do it. Blow it through the outlet vent(s) first, and give it a relatively long blast. That should clear most of the 'cruft' off the intake vent and fan.
Then, while using something to hold the fan blades and keep it from spinning (I usually use a very short, small screw driver -one that does NOT reach beyond the blades- or even a larger tie-strap - just stick in into the fan blades) thoroughly blow out the intake.
Yes, some of the very small dust particles will end up in the PSU but most will blow out the vent.
If you elect to open your PSU, you are right, it can be dangerous. The best way is to unplug it and remove it and let it sit, unplugged, for 2 or 3 days. This usually allows any stored charge to dissipate.
As a bit of info., I recently built a classroom PC using an old but working PSU. I wanted it clean, so before I intstalled it I removed the cover to clean it: Waste of time. it was very clean inside. So I wouldn't worry too much about it being "sanitary" type clean. (That PSU had a lot of hours on it, I really expected it to be filthy.)
 
ok so use a can spray ''dust off'' , do not use a air compressor , because it can have some water residual and can be spark
in psu when you turn on , so again use a can spray

before spray unplug it and wait 15 min approx to discharge the capacitor

you do not need to open the psu for that , above all if it still under warranty
 

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