My computer won't turn on

[freebyrd]

I have an older Dell that I decided to add more memory to and to update. I turned it off and after I added the RAM, it won't turn on! What could be the problem? I opened up the case and when I plug it up, there is a light that comes on the motherboard but when I push the button to turn on the computer, nothing happens.

[Carbon Dudeoxide]

What happens if you take out the RAM. Does the computer turn on?

[patio]

Make sure it is seated fully.
Make sure it is the correct type/speed.

To check this see your MBoard manual or travel to Dell's site and enter your service tag #...

[freebyrd]

Carbon Dudeoxide, I took the RAM out and the computer came on.
Patio, I will check for the type, it may have been the wrong type.