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    Trying to fix a lenovo l340-15api. 3.3V rail comes on, then immediately goes to zero.

    Hi everyone. I think the title sums it up pretty well. The main voltage rail seems fine, the 5V rail is fine, the 1.1V rail for the CPU looks fine as well, but the 3.3V rail shuts down a split second after power up. I can measure it, just barely, before it shuts down. Meanwhile the power LED...
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