820-3437 All rails present, fan spins high for 1 minute then power off. Cycles

LearningMan

New member
Hi, I have this MacBook Air here. All rails present, no chime, no output to monitor, CPU on, board gets hot, fan starts slow then spins high for about a minute or more and shuts off. Continuous cycle.
No sgns of corrosion, no signs of liquid damage at all.
 
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