I opened the notebook, now it doesn't boot

[Catalin Marin]

last week I opened my notebook to clean it, then I closed it and it worked fine. Then yesterday I disassembled again but this time the notebook won't boot. When I press the power button the fan doesn't start (it isn't obstructed by anything) , the screen is off, and the speakers are doing some strange little noises.
The notebook is acer 5750g

 

[USAFRet]

I would guess that something isn't connected right on the inside.

You'll have to take it apart again and see.

 

[Catalin Marin]

I unplugged and replugged everything but the situation is the same. Watch this video

http://it.tinypic.com/player.php?v=2nbbx3b&s=5#.Ur2cErS3PFp

 

[Prostar Computer]

If you were not grounded, you may have caused ESD damage to the board. It's subtle, and sometimes kills components slowly. Other times, you see immediate failure from it.

 

[Catalin Marin]

Dammit. I wasn't grounded. There is anything I can do now ?

 

[Prostar Computer]

In the case of ESD damage: no. But that is assuming ESD damage is the cause. Your problem could be related to something else, like a bad circuit or solder joints that need reflowed.

 

[Catalin Marin]

ok, just to know for the next time, how do I ground with a laptop ? where do I attach the crocodile clip ?

 

[Prostar Computer]

You don't need a clip really, but if you use an ESD wristband, you can clip it to a piece of metal (or any material that excels in electrical conduction). Standing on a hard surface, such as concrete or tile, also will help in grounding yourself.

 

[jarotech]

Hi, you can follow some tips on this site : http://www.wikihow.com/Ground-Yourself-to-Avoid-Destroying-a-Computer-with-Electrostatic-Discharge