NO PGI signal to ATX power supply.

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  • wkholi
    Member
    • Jun 2021
    • 20
    • Egypt

    #1

    NO PGI signal to ATX power supply.

    Hi All:

    I have a 1600 watt PSU that does not output PGO. I thought it is a bad chip first, I managed to get an equivalent, But when I started measuring the inputs of the power supervisory chip I found that PGI signal is also zero. could that still be a bad chip? where it shorts the PGI pin?

    if not what supplies the chip with PGI signal. where can I get schematics for this power supply? There are so many types of power supplies

    The chip is ( 1. HY510N <=> WT7510 <=> ST9S313 <=> PS113 <=>RT7501 ) and i got WT7510 as a substitute.

    your help would be appreciated.

    Thank you in advance.

    The brand of the PSU is SURMA, 90 plus gold.

    Note: All voltages on the 24 pin connector are available except PGO and all the cables have 12v and 5v to it.

    Photos of PSU are in the attachment.
  • sam_sam_sam
    Badcaps Legend
    • Jul 2011
    • 6024
    • USA

    #2
    Re: NO PGI signal to ATX power supply.

    There are no pictures

    Comment

    • wkholi
      Member
      • Jun 2021
      • 20
      • Egypt

      #3
      Re: NO PGI signal to ATX power supply.

      here are the pictures.

      I guess i did not wait till they uploaded .
      Attached Files

      Comment

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