New RAM not recognized on Laptop! HELP CAGs!!

[eliter1]

I just got this new RAM, 2x1GB. I currently have 2x512MB. When I installed it and tried turning on my computer everything was fine for about 5 seconds and then it just stayed there doing nothing. Everything fired up and then it was quiet. The power button i on and it seems the computer is on to some point but nothing loads and the screen does not turn on. I put back the old RAM and it runs perfect. Does anyone have any advice. i don't have another computer to test the RAM and I am 110% sure it's the right RAM. It's a Gateway CX2724 BTW and the new RAM is Kingston.
All advice welcome.

EDIT:
This is what i bought
http://www.buy.com/prod/kingston-2gb-2-x-1gb-pc2-5300-667mhz-200-pin-sodimm-ddr2-laptop-memory/q/loc/101/204884017.html

[Aberforth]

What's the speed of your old RAM and what's the speed of the new RAM? (e.g. PC2 4200 or DDR2 667)

[Kaijufan]

Make sure you got the right kind of RAM. (http://www.ec.kingston.com/ecom/configurator_new/modelsinfo.asp?id=1&SysID=31742&mfr=Gateway&model=CX2724+Convertible+Notebook&root=&LinkBack=&Sys=31742-Gateway-CX2724+Convertible+Notebook&distributor=0&submit1=Search)

[eliter1]

What's the speed of your old RAM and what's the speed of the new RAM? (e.g. PC2 4200 or DDR2 667)

DDR2 PC2-5300 667... I think

Edit: I do have the right RAM

[captainfrizo]

Make sure the new RAM is seated properly. If it is then either the RAM is defective or you don't have the right type after all.

[Kaijufan]

Try only putting in one at a time to see if one of the modules is defective.

[eliter1]

So I tried putting them in for a third time and it worked. I don't know what I was doing wrong if anything, I did the exact same thing and it started like normal. Now I have twice the RAM!
Thx to everyone that game me advice.

[Richard Longfellow]

This is one reason why I hate laptops-the fitment of every removable part is so damn finicky.

[elchbulle]

lol, you may want to look up the word fitment..