no chime, fan auto start spinning slow without pressing power button
Hey guys, my friends just gave me this macbook pro, when i plug in the charger, fan automatically start spinning slowly, no chime, i havnt even tapped the power button, and when i try to shut it down by pressing the power button for 10 seconds, its dosent turn off (fan still keep spinning)
Only way i could get a response from the macbook pro, is if i press the power button (located at the keyboard) and THEN plug in the magsafe 2, and keep pressing the power button, after about 5 seconds fan start spinning extremely fast and theres a chime, no display though, and if i hold the power button it shuts off…tried resetting SMC, PRAM already to no avail…
one odd thing to notice is, when i unplug the battery, and plug the magsafe 2, fans dont spin at all, and if i press the power button, i get no response from it as well…
i usually do small repairs like simple LCD or logic board swapping, sometimes, actually most of the times swapping RAM or Processor fixes the laptop, but ram and cpu is built in in the model….tried removing every non-essential thing as well (SSD, WIFI CARD), Is the motherboard shot to !&&*?, Thanks for reading, im confused as what to do now!