About 3vs out when injected

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  • tribalcore20
    Senior Member
    • Jun 2020
    • 66
    • Philippines
    #1

    About 3vs out when injected

    I have a autoshutdown instantly when pressing power button.

    I injected a 2.5V to the 3vs out/3vs and it is eating 2.545A and found out that audio ic and sio is heating up. I remove the audio ic and injected 2.5V to 3vs out/3vs and it is now eating .950A and sio os heating up. Is it normal that those 2 ic are heating up?
    Tags: None
    • BalkanBoy
      Senior Member
      • Feb 2017
      • 69
      • Croatia
      #2
      Re: About 3vs out when injected

      My suggestion is not to inject 3.3V even if that rail is working on that voltage because who knows what's shorted and 3.3V could end up on something that works on 1.05, 1.35 or similar. Always go with 0.8-0.9 volts 1st.

      It's not normal to draw such current both of those chips, check resistance to ground on capacitors around EC or sio how you call it.

        Comment

        • tribalcore20
          Senior Member
          • Jun 2020
          • 66
          • Philippines
          #3
          Re: About 3vs out when injected

          Originally posted by BalkanBoy
          My suggestion is not to inject 3.3V even if that rail is working on that voltage because who knows what's shorted and 3.3V could end up on something that works on 1.05, 1.35 or similar. Always go with 0.8-0.9 volts 1st.

          It's not normal to draw such current both of those chips, check resistance to ground on capacitors around EC or sio how you call it.
          As long as you know what you are injecting it is find. So i found out that 3vs out is shorted because PCH is faulty and it is connected to 3.3v rail.

            Comment

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