ASROCK K7VT4A PRO repair

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  • N²x²N
    Senior Member
    • Apr 2023
    • 54
    • Italy
    #1

    ASROCK K7VT4A PRO repair

    Hello!

    I bought this board but isn't powering on. Seller told me it was fine and stable.
    Got it for a dime but it supports NX models.
    Ths cpu it came with works fine and the 2gb are error free (2x1gb).

    https://www.asrock.com/mb/VIA/K7VT4A%20PRO/#BIOS


    I inspected the board many times and no component gets crazy hot, not even lukewarm; no traces are cut or damaged.
    Battery is fine on its circuit.
    The ASM1117 outputs 3.5V instead of the usual 3.3x I saw in many other boards.
    https://pdf1.alldatasheet.com/datash...S/AMS1117.html
    Could it be the problem or is it still within specs?

    No shorts, not with gnd not between rails. ATX is all clear. Maybe I should check ohms too...

    Has a 1.8V AGP 8x only slot, maybe it died because the seller tested a 3.3V gfx in it?

    Thanks for any contribution, even just random ideas (you never know if crazy may help or not ).
    Last edited by N²x²N; 05-11-2023, 05:13 PM.
    Tags: None
    • N²x²N
      Senior Member
      • Apr 2023
      • 54
      • Italy
      #2
      Re: ASROCK K7VT4A PRO repair

      3.5V is as expected, circuit is correctly outputting V.

      It's 1.5V AGP, not 1.8. Typo

        Comment

        • N²x²N
          Senior Member
          • Apr 2023
          • 54
          • Italy
          #3
          Re: ASROCK K7VT4A PRO repair

          If it isn't another problem maybe it's the SIO.

          Any ideas are welcome.

            Comment

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