high fan speed

my laptop has no battery and it an i5 Version. I got a problem. When i plug it to power using original cable without pressing power button it boots by itself but black screen and super high fan speed. LEDs are working, the power, browser, wifi and sound but it just stuck like that nothing...

Yesterday night, a message popped up on my screen, saying the windows need to update, I clicked remind me later, when it was time for me to go to bed, I clicked update and shutdown, it started shutting down and then updating. I noticed it was going really slow, I slept anyways, when I woke...

Nowhere in the motherboard manual does it locate where to put the internal speaker to test for post code errors. Does anyone know where it is on the motherboard?