I am using 870A-G54. I'm trying to add extra network card. I cannot look to obtain the motherboard to give you the resources. When I look in device manager it says this device cannot start (code 10). I am using Windows 7 x64, with an Athlon X4 630 and 16 GB of memory. I tried resetting the CMOS several times. I tried removing the PCI x 16 graphics card and use an old Matrox PCI card. I tested the card in all PCI-E. Not anything looks to matter. I downloaded Microsoft's most recent Windows Driver for Windows 7 x64, and tried the devcon tool. But they have not got anywhere or not. Does anyone have any idea?