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Dell 3521 7 beeps and no display

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    Dell 3521 7 beeps and no display

    Hello guys

    Im current working on the Dell
    VAW00 LA-9104P
    Rev : 1.0

    7 beeps and no display

    Measurements:
    I have all other necessary volts
    The Gfx core is missing, 0v.
    Fan spins constantly

    I changed the bios chips both of them with another same board but still no lucky

    #2
    Re: Dell 3521 7 beeps and no display

    Check PU400 requirements or replace this chip if you have difficulty in measuring. Be very careful-your probes should be needle sharp.

    Comment


      #3
      Re: Dell 3521 7 beeps and no display

      Originally posted by mcplslg123 View Post
      Check PU400 requirements or replace this chip if you have difficulty in measuring. Be very careful-your probes should be needle sharp.
      Okay let me do it now coz i have another replacement chip

      Comment


        #4
        Re: Dell 3521 7 beeps and no display

        Originally posted by mcplslg123 View Post
        Check PU400 requirements or replace this chip if you have difficulty in measuring. Be very careful-your probes should be needle sharp.
        I changed the chip but still no lucky, let me put another one and see

        Comment


          #5
          Re: Dell 3521 7 beeps and no display

          Did you clean the ME firmware on the original bios, or on the replacement bios.
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment


            #6
            Re: Dell 3521 7 beeps and no display

            Originally posted by SMDFlea View Post
            Did you clean the ME firmware on the original bios, or on the replacement bios.
            No I didn't

            Comment


              #7
              Re: Dell 3521 7 beeps and no display

              check cpu circuit . after change cpu
              Last edited by piernov; 12-11-2019, 05:56 PM. Reason: remove formatting

              Comment


                #8
                Re: Dell 3521 7 beeps and no display

                Originally posted by ayooon_2010 View Post
                check cpu circuit . after change cpu
                Cpu is onboard soldered and dont change it without being sure.

                Comment


                  #9
                  Re: Dell 3521 7 beeps and no display

                  Remove PJP1100 and PJP800, see if the mb post or changing beep code.
                  Attached Files
                  Last edited by kiraro; 12-12-2019, 07:08 PM.

                  Comment


                    #10
                    Re: Dell 3521 7 beeps and no display

                    Originally posted by kiraro View Post
                    Remove PJP1100 and PJP800, see if the mb post or changing beep code.
                    same problem bro

                    Comment


                      #11
                      Re: Dell 3521 7 beeps and no display

                      Originally posted by abderrahimfouad View Post
                      same problem bro
                      Bios can make this issue, dump io too
                      pu 500 pin1 voltage
                      uz1 voltage

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