Im having trouble with my computer, I need some help.

I'll start my computer and one of the fans, I believe it's the graphic cards', will speed up and slow down and it'll do this a few times. Then the computer will sound like it normally does when starting up, but nothing will appear on the monitor. I need help getting my computer fixed.

My PC specs are:
NVIDIA GeForce 8600 GT
2GB RAM
Vista 32bit
amd athlon 64 x2 dual core processor 4400+ *

 

have you tried rebooting into safe mode, and reinstalling the latest video drivers?

 

Welcome to Major Geeks.
Have you tried the onboard graphics to see if you get anything to the monitor?

 

Monitor works fine. I just cant get my computer to display anything

 

hrlow2 was trying to tell you to remove the graphics card and boot with just the onboard video. This is the way to tell if your video card is bad. If the monitor displays using the onboard video chip, you've discovered the problem.