Asus 501j just stopped working and went black screen

SOURCE: no screen on starting laptop

remove the battery from bottom, plug into ac power pack, and try it that way

SOURCE: laptop won't turn on

The blinking orange battery light generally indicates that the battery isn't working properly, usually going out and not charging properly. In this case, since the adapter will not power the machine without the battery, and it should, I'm going to say that the adapter is going out and not getting the proper amount of power to the system. Try replacing the adapter. Be sure to replace it with a Dell replacement, the Targus brand universal adapters do not work well with Dell machines, and in most cases won't work at all.

SOURCE: Hp pavilion dv9000 wont boot,coloured lines appear no bootscreen

This is caused by burn out of the Nvidia graphics chip on the motherboard. You need a new motherboard. This is due to a design flaw (the subject of a class action against HP in the USA). I have had two motherboards fail on me in this way so far - do not expect any worthwhile support from the HP "support" people they are all in India and can hardly communicate outside of their simple repetative scripts. Its impossible to escape them - I tried communicating with head office but all you get is contact details back to the incomprehensible Indian call centre. I strongly recommend against ever purchasing from HP again.

SOURCE: Compaq presario V2000 doesn't start

you might have shot out your battery because if electrical curent is goging in to the computer (te orange light is going on) but the computer wont turn on it might be a problem with your battey

please rate

SOURCE: Suddenly my Toshiba Satellite A205 laptop died. No power.

First, check your power supply (the adapter). Is it putting out the required voltage to charge the battery?
If not, then you might have a dead battery and no way to charge it.
If the power supply is working and when you turn on the computer you get no lights, then you're probably looking at a new motherboard.
If you get startup lights and hear the fan, then it's getting power and you might have a video problem. But it sounds like, from what you wrote, there is no activity at all when you try to start it. That would be the power circuit on the motherboard, most likely.