Hp G72 Issue help needed.

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  • Bisketti
    Badcaps Veteran
    • Oct 2013
    • 252
    • Ireland
    #1

    Hp G72 Issue help needed.

    Hi I got a HP G72 (DA0AX1MB6F0) here initially it would not switch on. No leds not even the led on Dc jack. I have seen this issue of no led on dc jack before on some CQ60/61 and its always been corrupt bios.

    Anyway the 3.3v and 5v are fine as is the supply to the SIO, I reflashed bios and still same issue. I noticed the SIO was outputting #RSMRST and a few other signals without the powerbutton being pressed but still nothing else happening. I swapped out the KBC from a spare board and now the laptop powers up by itself it wont power up by pressing the powerbutton just starts itself after about 1 minute.The #rsmrst stays at 0v then jumps to 3v. It then displays on screen and immediately shuts down.

    It will not startup again without removing the adapter and reinserting, the cycle then starts again. Im gonna try swapping out the KBC again tomorrow but was looking for input and ideas.

    Many thanks
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    • Bisketti
      Badcaps Veteran
      • Oct 2013
      • 252
      • Ireland
      #2
      Re: Hp G72 Issue help needed.

      Update: I changed out the KBC again and laptop powers up when button pressed and does not power down by itseself anymore. So it looks like the KBC was the issue.

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