Laptop power problem

[Ben_19]

I have a Dell e1705, about 2years old.
When i connect the charger just to a power socket
the green light on the charger comes on but when i plug the
the other end into the laptop the green light on the charger
goes off, I have taken the battery off the laptop and it still
does the same thing, and under both conditions the laptop will not
power up and no lights appear on it.
The only way i can get the light back on the charger is to unplug from
the laptop and wall socket and then just plug it back into the wall socket and the light appears.

I had recently put in a new videocard that i had to order from ebay since my old one died and the computer worked perfect for about a day....now this happened

Help!

 

[Laptop_Nerd]

Please refer to this link:

http/www.tomsguide.com/answers/id-2785730/laptop-power-problem.html