I have a PNY Geforce 630 GT card that I've tried to install for weeks now. I had intitially installed it and ran it for a few days before it started blue screening. Pulled it and returned to my onboard graphics. There was some system corruption so I use my eRecovery disks to back up my data and do a clean install of Windows 7. I put the card back. When I installed the drivers again, this time the install failed with another BSOD. Memory Management. Memory passes all tests. Ran the card without drivers is low res and went to nVidia's site. Tried various versions of drivers and they all blue screen. I disabled the onboard graphics hardware in the Control Panel but have been unable to enter the BIOS to disable the hardware. I have tried ctl-alt-esc, f2, f10, f12, delete on POST. Nothing gets me in. Oddly the card did work for a while. Since it's been all going backward.