thread top ad

Collapse

Announcement

Collapse
No announcement yet.

820-00281-A A1707 with No Chime Or Display But Fans Spin

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    Could there be a Short on one of the GPU Power Lines? I feel SOOOO Close!!!...LOL

    Comment


    • #17
      Maybe a gpu_enable line??

      Comment


      • #18
        Anyone Have ay ideas??

        Comment


        • #19
          Could be bad GPU.
          But you need to confirm in a similar board if GPU gets power at boot time.

          Comment


          • #20
            Okay...I do have another 820-00281 Board that also doesn’t turn on...No Liquid damage but gets 19.89V on USB-C Amp-meter but goes from 11amps to 61amps then back to 61Amps and just keeps doing that No warmth on the board anywhere...Any Suggestions on getting that Board To power on?...Any Help is GREATLY APPRECIATED ?

            Comment


            • #21
              1. Sorry...Just goes from 10-11Amps then 69-61amps and repeats itself like it trying to start up but doesn’t...Any Suggestions

              Comment


              • #22
                Anyone have any Suggestions?

                Comment


                • #23
                  3V3_G3H, PPBUS_G3H, any other voltage on this other board?
                  Check tge basic things and post correct information.
                  You may want to say 11mA, 0.11A, or 0.061A, no idea really; but impossible to get 10-69A for sure...

                  Comment


                  • #24
                    For sure ! Your board would already be fried , and you with it..... Not possible as your charger is providing something like 4.3A max if it's à 87W charger

                    Comment


                    • #25
                      Yes...Sorry...I Meant its reading 19.89V and just keeps going from 10mA - 61mA on USB-C Meter

                      Comment


                      • #26
                        You should post basic power on signals.
                        We need some info to help.
                        Check if PPBUS_G3H and 3V42 are stable.
                        3V3_S5/SUS, PM_RSMRST_L, PM_PWRBTN_L reaction triggering SMC_ONOFF_L, etc...
                        Also try starting in SMC bypass mode.

                        Comment

                        thread bottom ad

                        Collapse
                        Working...
                        X