In this article I will show you how to clean and maintain your Switched Mode Power Supply (SMPS ). Extend the life of your computer by ensuring your power supply unit is running cool.
If your SMPS is dirty, its fan may stop rotating, resulting in overheating. Do not open the SMPS if it’s under warranty. Avoid touching internal components with your bare hands. Here’s what you’ll need:
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A screwdriver
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A handy blow pump
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A brush.
Here are the steps you should follow in order to clean and make your SMPS work better than before..
Step 1:
Switch off the computer, open the cabinet and disconnect the cables running from the SMPS to the internal peripherals.Unscrew the SMPS and place it on a large sheet of newspaper. Now open the four screws located on the top of the PSU.
Step 2:
Use the brush to carefully clean the inside of the unit, the circuit board and the heat sinks. Use the bristles to tap stubborn dust particles settled in places hard to reach. Finally use the air pump to blow out the dust from the unit.
Note: Some power supplies may have a charge remaining in the capacitors even when there is no power. Be careful while handling the circuit board inside the unit. Do not touch any exposed metal parts.
Step 3:
Unscrew and carefully remove the fan from the chassis. Now clean the fan in the same manner like the PSU’s case. Apply a few drops of machine oil to the fan spindle, for smoother operation.
Step 4:
Finally after cleaning is done, screw the fan back onto the chassis. Screw it back into the cabinet, reattach all the power cables and you’re done. Clean the PSU every four months if you live in an area where dust accumulates quickly.
perhaps you might want to re-name this page – it would appear it’s only for specific use SMPS units … only relevant to computers – please respect others’ use of time with clairty!
I unscrewed my smps fan few days back, and then later i was not able to put it on properly as i dont want to take the risk of opening smps. But now that fan ios making silly noises evertime i start pc. Is there anyway in which i can make that work smoothly without opening smps or will ihave to open it?
get a torch and see what is causing the fan make noise. i reckon that something is in contact with the fan may be a wire or somethine which is making noise….if you are confident enough, open the smps and fix it or else take it to any hardware engg he would fix it. its not a big issue, it will get fixed
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my intex smps is making severe sound at system startup .plz tell me one suggestion..
Try cleaning your SMPS using a blower. May be the dust inside it is the problem. If you follow the above steps, you can eliminate noise completely.
there is nothing to fear that much when you are opening the power supply as because the explanation given above with picture is self explanatory…….just be careful ……because if you dare not open anything then you dont learn anything ….so my advice go ahead but always keep in mind to unplug the power cable from the main before taking any troubleshooting step……
Just be sure you are very very very careful when messing around the power supply. The capacitors inside the unit can still have a charge even after the computer is unplugged. If you don’t know what you are doing it is better to not to open up the power supply.
Thanks for wonderful tip…
very useful….