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Can you get it into macOS in SMC bypass? yes
when plugged in charger it restarts constant fan; without giving video.
just power on with video and enter system bypass mode and fan rotate normal
excuse me in bybass mode fan spin to max
these are measurements when board fan restarts constantly
SMC_PBUS_VSENSE=2.1 y baja 0 si se mantiene ciclicamente
SMC_DCIN_VSENSE=2.8 y baja 2.7 ciclo
SMC_CPU_VSENSE=1.16 y baja 0 ciclo
SMC_CPU_HI_ISENSE=0.67 y baja 0.16 ciclo
SMC_OTHER_HI_ISENSE=0.80 se mantiene asi ciclo
SMC_DCIN_ISENSE=0.30 se mantiene asi ciclo