computer crashing with new 3d card

i upgraded my power supply to a 400w one so thats not the problem. i didnt have an actual 3d card b4, it was an onboard one.

the reason i downloaded the drivers from the internet is because i was having trouble with the cd. everytime i went to install the drivers off of the cd it would say some was not compatible or along those lines but my computer meets all the requirements for the new card. and yes the new card is dual DVI but it comes with VGA to DVI adapters