is this a bad recap?

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  • eppidrummer
    Senior Member
    • Jan 2011
    • 65
    #1

    is this a bad recap?

    I have recapped about 40 or more boards with 100% success until now.
    Recapped what I think is a gx270. I replaced every cap with rubycons of the same value but used poly caps along v-core (820 2.5). PC booted and ran 24hrs unattended with no issues, updated drivers and all was well. I bring the pc home to hook up and let run for a few days and now its doing weird stuff.
    Start with a beep everytime I moved the mouse. I then hooked up usb mouse and all was well but now no keyboard. I reboot and keyboard now works but is typing sometimes wrong characters or typing twice with one hit. Changed the ram and still same problems.
    Could this be the result of the poly v-core wrong(to many, not enough?) or a bad cap somewhere else? Not sure were to start?
    After I recap evry board I do go over all the traces with a magnify glass to check for solder splatter or loose joints so I dont think that is it. Should I just scrap the board?

    Thanks for any input.
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: is this a bad recap?

      No, Vcore caps shouldn't do that.

      Sounds like a problem with +5v or a ground.
      USB & PS2 both use +5v.

      First check mounting didn't sift somehow when you moved it.
      .
      Mann-Made Global Warming.
      - We should be more concerned about the Intellectual Climate.
      -
      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
      - Dr Seuss
      -
      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
      -

        Comment

        • eppidrummer
          Senior Member
          • Jan 2011
          • 65
          #3
          Re: is this a bad recap?

          Here is a pic(bad one) if it will help any?
          Attached Files

            Comment

            • PCBONEZ
              Grumpy Old Fart
              • Aug 2005
              • 10661
              • USA
              #4
              Re: is this a bad recap?

              I'm trying to say maybe board got grounded to tray or something similar when you moved it.

              No random screws rattling around under the board are there?
              .
              Mann-Made Global Warming.
              - We should be more concerned about the Intellectual Climate.
              -
              Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
              - Dr Seuss
              -
              You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
              -

                Comment

                • eppidrummer
                  Senior Member
                  • Jan 2011
                  • 65
                  #5
                  Re: is this a bad recap?

                  Originally posted by PCBONEZ
                  I'm trying to say maybe board got grounded to tray or something similar when you moved it.

                  No random screws rattling around under the board are there?
                  .
                  I will take the board out and check everything out. Thanks for the input!

                    Comment

                    • PCBONEZ
                      Grumpy Old Fart
                      • Aug 2005
                      • 10661
                      • USA
                      #6
                      Re: is this a bad recap?

                      Also check that USB ports didn't get bent inside.
                      I've seen bent ones ground the contacts to the sheet metal surrounding the port.
                      .
                      Mann-Made Global Warming.
                      - We should be more concerned about the Intellectual Climate.
                      -
                      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                      - Dr Seuss
                      -
                      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                      -

                        Comment

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