Acer nitro 5 AN515-44-R8PF - dead CPU ?

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  • nosfay
    Senior Member
    • May 2024
    • 64
    • France

    #1

    Acer nitro 5 AN515-44-R8PF - dead CPU ?

    Hi,

    I've got this laptop for parts, no historical. When I try to power on, blue led lights up for 1s and stop, with or without battery. Battery is charging good - orange led is lit.
    I've checked ALW voltage, 5v is here, but 3v is missing and I found a short on +3VS.
    I've isolated this rail, and injected 1v/1a and found a heating resistor behind the CPU (on the other side), on boardview, it's connected to +3VS on one side, and +3VS_APU on other side.
    I've removed it, no more short on +3VS, but +3VS_APU is still shorted (3Ω to the ground) and only other pins are under CPU ...

    I think CPU is dead, is there anymore I can do ?

    Motherboard model is fh51s LA-K181P

    Thanks

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