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Switch mode power supply (smps) converts 110-230 volts of alternating current to direct current that computer components need. The fan keeps the power supply cool.

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16y ago

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How do you check power supply without motherboard?

Connect Pin No. 14 & 15 on SMPS, if the fan moves then SMPS is working fine else SMPS is faulty.


What is the function of cooling fan in system unit?

To cool the SMPS while the computer is working.


What to do your smps fan is not running?

If your SMPS (Switched-Mode Power Supply) fan is not running, first ensure that the power supply is properly connected and functioning. Check for any dust buildup or obstructions that may be preventing the fan from spinning. If the fan still doesn't work after cleaning, it may be faulty; consider replacing the fan or the entire power supply if it's under warranty. Always exercise caution and disconnect power before performing any maintenance.


How you can check that your smps is ok or not?

take small wire,place it in atx24pin in middle first line black nd green female connectivity,if da fan runs it is in working state.


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HI This Is Adil, We can check it out in different ways.. but i know only two ways... 1. while strating up the system press the "num lock KEY" check wether its running or not then .. if its not working then its shows that SMPS is not working. 2. By removing all the connections from the motherboard and by keeping the copperwire on the 13th and 14th block (or) green and black coloured blocks, keep the wire in it if fan is running then the smps is in good condition... keep one night with out power and then use it...


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