asus g53sw problem . weird problem

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  • highpulse
    i hate HP
    • May 2013
    • 1489
    • portugal

    #1

    asus g53sw problem . weird problem

    Well received this beast , was with problems on dc jack , we've replaced the dc jack , and we tryed the board outside of the chassi , turn on no problem gave image , passed post , well ok . time to close . we assembled the machine very carefully as always , when we tryed to turn on , machine turn on and then turn off . doing this constatly , then i opened the machine again , thinking something of the chassi could making a contact somewere , but doesnt seem , since all is ok . tryed board outside again , and once i insert dc jack motherboard turn on for some seconds then shut off , and there is no response to on off button .
    altough i got 3,.3 and 5 on the coils , but 0 volts on the on off button . but now , if i remove the powerboard , the laptop start working , since i notice gpu and cpu getting hot . but no image . once i insert the powerboard , i notice the 3 led turning on , then stay only on the right led , then shutoff .. and this is what this machine is doing .. i notice than that the connector were the pwoerboard connect , was with some broken part(the little plastic lid was not making pressure on all pins .. so i replaced with a new socket , but same symptom .
    cheked pin 125 of kbc also its 0 volts when it should be 3.3 - replaced the KB -- but nothing .

    i wanted to try to reflash bios but ASUS site gives me a dump with 2.5 megabytes , and the bios is a 4 megabytes ones , i guess that 1 megabyte of the info on the bios must be for the huge pciexpress video card. and the remaining 2.4 megabytes for the system .

    so if anyone here undrstand well about bios cut /repair (usually techman know how to do the work) i apreciate it someone can help me out with this.

    will add here the bios ,

    my dump and the file frmo the asus site . if someone can help me out or have any clues , it will be welcome.

    the file with "dump" writen is my bios .
    Attached Files
  • dellxps15
    Badcaps Legend
    • Feb 2014
    • 1585
    • italy

    #2
    Re: asus g53sw problem . weird problem

    can u try without lvds cable and with an external monitor ?

    Comment

    • highpulse
      i hate HP
      • May 2013
      • 1489
      • portugal

      #3
      Re: asus g53sw problem . weird problem

      im working only with the board and to external

      Comment

      • dellxps15
        Badcaps Legend
        • Feb 2014
        • 1585
        • italy

        #4
        Re: asus g53sw problem . weird problem

        what is the bios chip code ?

        Comment

        • techman1025
          Badcaps Veteran
          • Jun 2014
          • 497
          • United States

          #5
          Re: asus g53sw problem . weird problem

          Here my friend full new dump are you getting RSMRST3.3V & S5 3.3V? also caps working or dcjack lit...if not bios ant working .
          Techman1025
          Attached Files

          Comment

          • highpulse
            i hate HP
            • May 2013
            • 1489
            • portugal

            #6
            Re: asus g53sw problem . weird problem

            i dont have the bloody schematic for this , but cheking a dv4 board that have this ITE , will chek does values and let you know mate

            Comment

            • highpulse
              i hate HP
              • May 2013
              • 1489
              • portugal

              #7
              Re: asus g53sw problem . weird problem

              well got rsmrst 3.3 but nothing happen when on off is pressed , since there is no responde frmo on off as also no 3.3 volts on the on off as also no 3.3 on pin 125 of kbc (EC_PWRBTN#) , i replaced kbc ,but same symptom persist . (the strange thing is , if there is no powerboard attached to the main board , theboard automatically turn on , but no image at all , if i insert the powerboard on the main board, it will turn on making the 3 leds to turn on for like 5 sec , then only the right led stay on and after 3 seconds it shuts off and will only do this cycle again if i remove the powerboard or remove and reinsert the dc jack)

              Comment

              • highpulse
                i hate HP
                • May 2013
                • 1489
                • portugal

                #8
                Re: asus g53sw problem . weird problem

                also bios does same thing , so i guess bios was ok

                Comment

                • dellxps15
                  Badcaps Legend
                  • Feb 2014
                  • 1585
                  • italy

                  #9
                  Re: asus g53sw problem . weird problem

                  check also if you have a tps51427, or rtl8206

                  Comment

                  • highpulse
                    i hate HP
                    • May 2013
                    • 1489
                    • portugal

                    #10
                    Re: asus g53sw problem . weird problem

                    rt8206 is for main regulation , and its working fine

                    Comment

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