Dell Vostro 200 wont Boot up after Installing new Graphics Card

[JROD805]

My computer loads up fine goes to the windows logo , then goes black , after about 30 seconds the computer restarts itself and does this same proccess over and over. I have tried everything disabling onboard, reinstalling windows , uninstalling drivers and doing a clean install, etc im really fustrated and dont know what to do next . Any help is GREATLY appreciated!

 

[cyberSAR]

Maybe try different version of the drivers. I had one recently that the updated drivers killed the system. Also, is it possible the card could be defective?