Asus K75V - Start and stop, fan spin. BIOS ?

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  • samstown
    Senior Member
    • Mar 2021
    • 122
    • Switzerland
    #1

    Asus K75V - Start and stop, fan spin. BIOS ?

    Hello,

    I got a Laptop Asus K75V from a friend as it was not starting. I've replaced the faulty caps and now I get charging led orange, when I press power, i see fan spining for 4-5 seconds then it stop, power light is on (green).. but nothing on screen and no bip.

    I don't have a lot of experience but that sound like BIOS issue. i've found BIOS chip (at least I beleive I found it, it's WINBOND 25Q64FV). I've read it with EEPROM reader, I could read it and save it. I've compare it with that one.
    https://www.badcaps.net/forum/showth...ighlight=K75VM

    Contente are not exactly same so I wrote the one from URL below to WINBOND... Laptop turned on but same problem.

    I have another BIOS for ASUS that I could try... but before unsolder and solder new one, I want to ask if somone know this problem.... Also I am not sure replacing the BIOS will help as I can read and write on original WINBOND BIOS chip. Maybe I need antother version of BIOS BIN file?

    Thanks
    Sam
    Last edited by samstown; 08-24-2022, 04:00 PM. Reason: title too vague
    Tags: None
    • samstown
      Senior Member
      • Mar 2021
      • 122
      • Switzerland
      #2
      Re: Asus K75V

      Sorry.. the title should have been better, I edit it.

        Comment

        • samstown
          Senior Member
          • Mar 2021
          • 122
          • Switzerland
          #3
          Re: Asus K75V - Start and stop, fan spin. BIOS ?

          I fixed it. I found another ROM, I flash it and PC works ! .

            Comment

            • mazloum
              Badcaps Veteran
              • Sep 2012
              • 499
              • Lebanon
              #4
              Re: Asus K75V - Start and stop, fan spin. BIOS ?

              hi
              can you please tell which caps were bad?

                Comment

                • mon2
                  Badcaps Legend
                  • Dec 2019
                  • 14070
                  • Canada
                  #5
                  Re: Asus K75V - Start and stop, fan spin. BIOS ?

                  To locate bad caps, power down. No battery.

                  Meter in resistance mode. Check the resistance to ground of each inductor (usually grey color) to ground.

                  One meter lead to either side of the inductor, other meter probe to ground (shield is ok).

                  Report any low resistance readings.

                    Comment

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