From: slavotinek@gmail.com   
      
   On 10.01.2023 3:54, Louis Ohland wrote:   
   > If you open the PSU, look for dirt / dust / grease, you can use a Qtip   
   > and alcohol, and / or compressed air to remove the grunge. Though odd,   
   > the internal heatsinks and / or components may be coated. The "clicking"   
   > might be thermal self-protect. Maybe.   
      
   I really doubt thermal protection would act this quickly, especially   
   without a load. But I agree that dust and grime can cause thermal and   
   other issues if you give it enough time.   
      
   If you are gonna de-dust the thing, watch for any broken-off pieces.   
      
   But based on the observed behavior, I'd be looking for bad electrolytic   
   caps first and foremost (bulged package, leaked electrolyte,   
   shrunken/broken sleeve indicating heat exposure). Even if the caps look   
   ok, they may still be bad. You would have to measure the capacity and   
   ESR to know for sure. Or shotgun it and replace them all. But let's not   
   get ahead of ourselves...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)