Question buzzing noise coming from fan when holding power button

djeuro1981

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May 22, 2014
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hi guys
i have a clients macbook pro here mid 2012 and i have never seen an issue like this before, what happens is if you press the power button once the processor fan shakes for a second then nothing, if i hold my finger down on the power button the fan will spin but nothing happens no lights no display or anything but also i can hear a faint buzz noise coming from fan area??
Things i have done already (removed hard drive, removed ram) still the same
 

djeuro1981

Honorable
May 22, 2014
30
0
10,530
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i just stripped down the macbook and re applied thermal paste but nothing still the same (push power button once fan shakes..hold power button down and fan spins but makes a weird faint buzz noise)
 

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