1, PU8(MAX8743) power control chip for chipset, if damaged, will not able to boot, or the fan rotations but cannot boot. Or auto power off after work for a period of time, or chipset very hot.
2, PQ20 mosfet, if damaged, will auto power off after work for a period of time, or cannot boot.
3, PL9 inductor or PC71 capacitor, if pseudo soldering, will auto power off after boot....read more
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