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MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

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    #1

    MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

    I got the schematic - no shorts or anything.

    Got +3valw and +5valw (PSU shows ZERO amps O_o)

    When i press power there shows some minimal power drain up to 10mA +3VSUS and +5VSUS shows up then it goes to 0 after like 5-10 sec

    Tried to meassure Pgood on diffirent mosfet drivers but there is none.
    There is no +v1v


    Flashed like 3 diffirent Bioses

    Coil resistances :

    GPU :
    choke 3 and 4 got around 1.1Ohm

    CPU :
    pl1 - 14.5
    pl2.3.4 - 2.2
    pl5 - 4.5

    PCH :
    pl11 - 35.5

    GPU RAM:
    choke 1 - 127

    Any help?
    Can i check something yet w/o replacing EC (can you test EC (in circuit)?)

    Im no expert i got pretty basic understanding of electronics but i dont want to give up
    Tags: None
    #2
    Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

    Post or link the schematic here. Do you have dc lab power supply??

    Comment

      #3
      Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

      Yeah i do have regulated PSU - and as i said It stays at 0w (but still produces +3 and +5v ALW (wierd)) When i press power it starts to show somthing like 0.1W usage for 5-8 sec then shuts down.

      Also there is some stuff missing on board that is on schematic like PU11 (1.8v - i assume it comes from diffirent place)
      Attached Files

      Comment

        #4
        Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

        +3VSUS/5VSUS will show only when mb is powered on as it is in suspend stage.Do you get +3VRUN/+5VRUN?? Your issue could be RTC circuit as well. Check for RTCRST# and SRTCRST# present or not. To check RTC section, use 3V coin cell and dont apply power to mb.

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          #5
          Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

          +3VRUN/+5VRUN not present

          RTCRST# and SRTCRST# - how to check those? Both get battery voltage.
          Last edited by reassor; 06-24-2021, 04:11 AM. Reason: Added RTCRST# voltage

          Comment

            #6
            Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

            OMG i fixed it it was PU8 (1.05V) it was dead lol
            It was recieving Pgood and even sending Pgood but there was no 1.05v

            Thank you for trying - it made me look what happens before +3vrun and +5vrun on Startup chart.

            THX ALOT

            Comment

              #7
              Re: MSI GF63 8RC (MS-16R11 rev 1.0) im confussed

              good day sir can i ask....how ca i find the bios chipset or bios ic in mainboard for msi gf63 8rc?

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