I have an Acer 5742 i3 which is 2 years old.I can only see the blue light on the turn on button(which remains for 2 sec max) i can hear harddisk and dvd sound.My laptop starts for 2 sec max and turns off,if its on charging it keeps automatically restarting and turns off every 2 sec,i cannot even see acer's opening page neither i can get into bios.I checked it with a local service centers,went to 2 different places.And 2 different people said 2 different things,1 said my motherboard's LAN unit got a short circuit(i use LAN wire sometimes) and thats not allowing it to turn it on,he advised that he can diffuse the short circuit but noway he can repair or get a new LAN unit,and for that he's charging alot.The other Service center's man said that my Laptop's Bios got flashed out and bios should be installed(which he's not getting it as its 2 yrs old).Their is no franchise or service center of acer(never felt so helpless the company is selling their products but have no service centers).Please if someone can help me out then it would be very kind,Please i'm not sure what i should do.Where i can find Bios...Please Help.
As Fruit Bat /\0/\ says, Sounds like overheating. Is the fan vent dusty? Try sucking dust out with a vacuum nozzle held close to outlet and a small paintbrush to disturb dust on fan blades. Then plug into mains electric and try it as per buteman said.
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