I have a Dell Inspiron 660: 6gb RAM, i3-2130 3.4 ghz processor. I recently upgraded my psu and gpu. My gpu is a visiontek RadeonHD 5450 1gb. The power supply came in first so I installed it a couple days earlier still no issues with it. The GPU however booted up fine the first time messed around on a game for about an hour, I went to check for driver updates, halfway through the update the screen went black. I plugged it back in the the onboard graphics, uninstalled the drivers, re installed. Now the only way to get it to display through the new card is to start up with the onboard, then switch plug ins while the computer is on. Also, I have tried disabling the onboard graphics and this didn't fix it either. Long story short, I now get nothing but a black screen when trying to load with the new gpu. I know its not a very good graphics card. I plan on ordering a new one today if the issue is with my gpu and not the mother board.