I have a IBM Think Centre with a PCI-e slot. I wanted to upgrade my video card instead of using the crappy on board VGA so I purchased a new PCI-e card. I ended up having to replace the first one with 3 others in an attempt to get it working.
1st PCI-e x16 Video Card worked for 6 months - then black screen.
2nd PCI-e v2 Video Card - Black Screen - Did not work
3rd PCI-e v2 Video Card - Black Screen - Did not work
4th PCI-e x16 Video Card - Worked for 2 days - Changed resolution then screen went white. Reboot then screen would go white screen when window almost reached desktop. Uninstalled windows drivers and rebooted, since then am not able to get any video what-so-ever from PCI-e slot. Also receiving one long - two short - Post error message.
5th PCI-e x 16 - Still unable to get any video and receiving one long - two short - Post error message. When plugged into the on board VGA everything works fine.
Has anyone else had this similar problem? Could this mean my PCI-e slot is somehow damaged or defective? When I use the standard VGA with the card not in the computer everything works fine. But sometimes when I have the PCI-e card in it will not beep but I see a black screen (no post). I also tested the last video card in a different computer (but the same exact brand and model) and the video card worked fine.