Recently I bought a Dell Optiplex 790 Small Form Factor and decided to add a Gtx 750 ti to it...Unfortunately, I made the mistake of buying it off of eBay and got a fake one delivered.This is the link for the GPU: http://I decided to install it anyway but after booting up I couldn't seem to find the Graphics card in the device manager. I tried everything, I updated the bios, updated to Windows 10, disabled the integrated graphics, tried downloading the drivers, switching to another PCI slot, but nothing seemed to work. The fan turns on when I turn on the pc so I know it's getting power. Can anybody help me?