I have a Foxconn C51XEM2AA motherboard. It currently has an Nvidia 8800GTX which does not have HDMI, the other card does, but when I put it in I get no boot at BIOS and if I try to install the driver before I install the new card, it won't let me. How can I get this card to work ? Also I tried both cards and no BIOS boot with the newer card. Codes CO, 23 and 45. Any help would be appreciated.