Jump to content
Electronics-Lab.com Community
Sign in to follow this  
only_lonely

Re: power surge kill power supply/motherboard

Recommended Posts

The noise is nothing to do with the high voltage protection, it is generated by the high frequency switching transistor in the supply and the mains.

Extra filtering will reduce the noise but there's no way to eliminate it completely.

Share this post


Link to post
Share on other sites

the power supply comes with overvoltage protection, why it is still havin AC noise?



while Hero999 already indicated, i would like to add that the electrolytic capacitors have a life time
and they deteriorate. At times, we see capacitors  with a bulge on their top, a definite indication of its failure. I know of service Engineers in India, prefer  to change all electrolytic capacitors as a batch, with same type and quality. It extends the life of the power supply, provided, of course, the Main and Aux transformers did not deteriorate.

Share this post


Link to post
Share on other sites

ccheck you out the output of your ATX power supply if this is corect voltage from all output voltage indicate to name tag... when this high voltage from normal it can be damage your mainboard.. about surge supresor. surge supresor is pico farad the value is 2kv. try to check that...

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...