Black screen on boot, sometimes

[George McFly67]

I have a problem, because sometimes, my laptop when I turn it on, it stays in a black screen, but when i touch any part of the keyboard it turns on but not the screen and the fans make a sound like a heartbeat, but then it stops again, I allways keep my bios updated, ¿what can I do?

[Mod edit: changed title for clarity from the unhelpful "I need help urgent".]

 

[COLGeek]

I suggest starting a thread on our sibling site for more help:

Laptop Tech Support

forums.tomshardware.com

Has this laptop ever been dropped, damaged, or dis-assembled?