A7S333 1 long beep 3 short beep and shut down ?

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  • bianchi77
    Badcaps Legend
    • Jun 2016
    • 1121
    • Australia

    #41
    Re: A7S333 1 long beep 3 short beep and shut down ?

    On POST code diagnostic I got C1 and motherboard is off after that....
    What does it say to me ? any experiences ?

    Comment

    • bianchi77
      Badcaps Legend
      • Jun 2016
      • 1121
      • Australia

      #42
      Re: A7S333 1 long beep 3 short beep and shut down ?

      can it be the audio modem chip is short and making all the system shutdown...?
      It's the closest to LM78L05
      https://cdn.badcaps-static.com/pdfs/...c2f51bc7b4.pdf
      Attached Files

      Comment

      • vinceroger69
        Badcaps Legend
        • Mar 2012
        • 6714
        • uk

        #43
        Re: A7S333 1 long beep 3 short beep and shut down ?

        C1
        Detect memory
        -Auto-detection of DRAM size, type and ECC

        Comment

        • bianchi77
          Badcaps Legend
          • Jun 2016
          • 1121
          • Australia

          #44
          Re: A7S333 1 long beep 3 short beep and shut down ?

          but it shut off after showing C1.....how do you reckon ? is it something wrong with my VRM
          ? I've replaced all the FET and Caps...but no avail...could be my buck controller and driver ?
          NCP5322 ?

          Comment

          • bianchi77
            Badcaps Legend
            • Jun 2016
            • 1121
            • Australia

            #45
            Re: A7S333 1 long beep 3 short beep and shut down ?

            LM78L05ACM is connected directly to 74HC4053...which a logic HCMOS chip...
            I have no idea what's it doing yet ??

            Comment

            • bianchi77
              Badcaps Legend
              • Jun 2016
              • 1121
              • Australia

              #46
              Re: A7S333 1 long beep 3 short beep and shut down ?

              74HC4053, could it be died already ? and making the system shut off ??

              Comment

              • bianchi77
                Badcaps Legend
                • Jun 2016
                • 1121
                • Australia

                #47
                Re: A7S333 1 long beep 3 short beep and shut down ?

                Comment

                • bianchi77
                  Badcaps Legend
                  • Jun 2016
                  • 1121
                  • Australia

                  #48
                  Re: A7S333 1 long beep 3 short beep and shut down ?

                  exact chip :

                  Comment

                  • bianchi77
                    Badcaps Legend
                    • Jun 2016
                    • 1121
                    • Australia

                    #49
                    Re: A7S333 1 long beep 3 short beep and shut down ?

                    Is it possible that I get a corrupted BIOS ?

                    Comment

                    • bianchi77
                      Badcaps Legend
                      • Jun 2016
                      • 1121
                      • Australia

                      #50
                      Re: A7S333 1 long beep 3 short beep and shut down ?

                      can I upload this one
                      http://dlcdnet.asus.com/pub/ASUS/mb/...316.1472338911
                      straight away with chip flash programmer ? thanks

                      Comment

                      • diif
                        Badcaps Legend
                        • Feb 2014
                        • 6978
                        • England

                        #51
                        Re: A7S333 1 long beep 3 short beep and shut down ?

                        1 long and 3 short beeps is no VGA detected.

                        https://www.asus.com/support/faq/1029959

                        Are you testing with a known quality working PSU ?
                        Last edited by diif; 08-28-2016, 07:22 PM.

                        Comment

                        • bianchi77
                          Badcaps Legend
                          • Jun 2016
                          • 1121
                          • Australia

                          #52
                          Re: A7S333 1 long beep 3 short beep and shut down ?

                          Yes I'm using a working PSU...I've tested this PSU with other mobo...works ok...
                          I will try changing buck controller and see...

                          either death buck or corrupted BIOS or both...

                          Comment

                          • bianchi77
                            Badcaps Legend
                            • Jun 2016
                            • 1121
                            • Australia

                            #53
                            Re: A7S333 1 long beep 3 short beep and shut down ?

                            I got progress....I've replaced all the FET and now it bot until displaying C1C1 on POST diagnostic...beep...and shut down...
                            I think it's NCP5322 buck controller not right....
                            Do you reckon ?

                            Comment

                            • bianchi77
                              Badcaps Legend
                              • Jun 2016
                              • 1121
                              • Australia

                              #54
                              Re: A7S333 1 long beep 3 short beep and shut down ?

                              from physical appearance, looks like NCP5322 buck controller is burned, please have a look at the photo...
                              Attached Files

                              Comment

                              • diif
                                Badcaps Legend
                                • Feb 2014
                                • 6978
                                • England

                                #55
                                Re: A7S333 1 long beep 3 short beep and shut down ?

                                Are you serious ? You can't see anything in that photo.

                                Comment

                                • bianchi77
                                  Badcaps Legend
                                  • Jun 2016
                                  • 1121
                                  • Australia

                                  #56
                                  Re: A7S333 1 long beep 3 short beep and shut down ?

                                  Can't you see the chip next to CPU on the right ?....ok, I'll try taking picture again...

                                  Comment

                                  • bianchi77
                                    Badcaps Legend
                                    • Jun 2016
                                    • 1121
                                    • Australia

                                    #57
                                    Re: A7S333 1 long beep 3 short beep and shut down ?

                                    Another photo...hope it's better now...
                                    Attached Files

                                    Comment

                                    • bianchi77
                                      Badcaps Legend
                                      • Jun 2016
                                      • 1121
                                      • Australia

                                      #58
                                      Re: A7S333 1 long beep 3 short beep and shut down ?

                                      I can't read the label on NCP5322, because of burn I suppose...must take a good closer look with magnifying glass to see its label....

                                      Comment

                                      • momaka
                                        master hoarder
                                        • May 2008
                                        • 12164
                                        • Bulgaria

                                        #59
                                        Re: A7S333 1 long beep 3 short beep and shut down ?

                                        Buck controller seems fine to me.

                                        Why do you always think it's the buck controller that's the problem?
                                        Honestly, from all of the motherboards I got in for repair, I've never had to replace a buck controller. Maybe a few FETs and the occasional FET driver. The buck controller is protected pretty well.

                                        Comment

                                        • bianchi77
                                          Badcaps Legend
                                          • Jun 2016
                                          • 1121
                                          • Australia

                                          #60
                                          Re: A7S333 1 long beep 3 short beep and shut down ?

                                          I have replaced all the FETs and it's still happened....turn on trying to POST and shut off after few seconds ?? do you know what else then ?

                                          Comment

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