blank display, fan spins faster,

Nov 7, 2018
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I was playing game on my laptop. after that I started watching youtube and few minutes later my laptop suddenly powered off. then I tried to turn on the laptop but it only shows keyboard lights (caps lock, num lock) and nothing appears in the screen. fan's are spinning faster, no beeps coming and it powers off within few moments. good to know, I have upgraded my ram 6 month's ago which was used. what's the problem? is anything wrong with my ram? sorry for my poor English
 
If you suspect the RAM, test it, try with one stick at a time, try different slots, remove the used RAM you put in. Your issue is often a motherboard failing, in most cases of a bad motherboard same thing happens, nothing turns on and the fan goes at full speed.