DELL Alienwere P48E LA-K472P, power rail error

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  • palady
    Member
    • Jan 2014
    • 21
    • si
    #1

    DELL Alienwere P48E LA-K472P, power rail error

    I am working on "power rail error". No shorts, spill liquids, visible damages. Just a pure failure somwhere. So, where did I get to?
    if you look at page 5, there is a power sequence diagram. All measurements up to sequence number 19 are ok. The process stops at sequence 20 PCH_THERMTRIP#. The PCH is separate and operates normally on power 3.3V ALW and 1.8V ALW. Where is the hack?

    Shematic and BV link
    ​
    DELL LA-k472P GDP70 - Badcaps
    https://www.badcaps.net
    Need schematic or board view GDS70 LA-K472P DELL ALIENWARE X17 R1 thank​
    Tags: None
    • FriedFred
      Senior Member
      • May 2024
      • 137
      • Germany
      #2
      Looks like a temperature measuring resistor is probably broken or gone.

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