After BIOS reset no screen and sound

[gijs123a]

Hi, i'm from Holland so my English isn't perfect.
First i changed something in my BIOS and after that my computer would only blow their fans and give me a 3 beep error (the 3 beep error means No Memory). I tried to reset my BIOS by setting the jumpers and pry out my battery, the first couple of times it won't work but after 3 day's it finnaly worked (I think). Now when I press the on/off button it won't do anything within 5 seconds, after that all my fans begins to blow and there is no sounds and display on my screen. I really don't know how to fix this so please help me?!?! i've got a Intel desktop board DG33FB
Thanks

 

[Xttony]

Did you try changing the ram cards and trying different ones?
Put your cards one at a time in slot 2 and see if that works.
How many cards do you have?

 

[gijs123a]

Did you try changing the ram cards and trying different ones?
Put your cards one at a time in slot 2 and see if that works.
How many cards do you have?

I tried all rams in all sockets and also on at the time but it still doesn't work. i have 3 rams of 2 gb and 1 ram of 1 gb, all ddr2