Lenovo x60 ibm thikpad not working

SOURCE: Dell Latitude D600 won't power up

Dell power jacks are notorious for losing the solder connections. If all else fails remove the motherboard, use a solder wick and remove the old solder and resolder the connections. There are four pins that are close together so you need to make certain you do not over solder. Hope this helps

SOURCE: green battery charging light flashing and computer won't start

Have you tried removing the battery and replacing it again?

SOURCE: C500 Laptop won't come on power button just flashes

Have you tried attaching an external monitor when the LCD screen is disconnected from the motherboard? this connector is located under the keyboard strip – a piece of plastic just above the keyboard.
If it works, this way, then the video cable isn’t seated properly in the connector on the back of the screen. Plugging the video cable back in should fix the problem.
I don’t know how comfortable you are with taking apart laptops but I think that this information could be useful for you.
Source: http://www.asklaptopfreak.com/laptop-notebook-help/2006/08/08/laptop-powers-on-and-shuts-off-immediately/

SOURCE: Compaq C500- Will not turn on

Power drain would be a better solution in this case.
1.first shut down the comp
2.unplug the charger
3. remove the battery
   and after press and hold the power button for 60 seconds without any charger and the battery.After the 60 seconds replug the battery and the charger and turn the computer .

SOURCE: my lenovo T400 will not start up

I got the same problem. Have u resolved the it? If so, please send a message to: [email protected]