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Repairs_2019
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Repairs_2019/Dell_Optiplex_780/docs/notes

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PSU
4 years ago
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  1. Some heat damage on the PSU.
  2. 

  3. Don't know where the fault is.
  4. 

  5. -12V rail is -10.6V.
  6. 

  7. Need to test ATX psu with proper equipment. 
  8. 

  9. Need to replace CPU, and try booting.
  10. 

  11. Need to see if problem lies in CPU, Motherboard, or PSU.
  12. 

  13. Not worth my time right now.
  14. 

  15. Putting aside.
  16. 

  17. 

  18. 

  19. 

  20. Note: I did check a bit of the ATX PSU. I found a picture at
  21. http://www.pavouk.org/hw/atxps.png
  22. Which shows a similar supply. When in doubt, find a similar schematic.