I've just built my third PC (+2 Windows home servers) and I've come across a new problem I've never encountered before.
When I install the nvidia drivers to run the Asus GTX 580 it all seems to go well until I reboot. Clicking on the nvidia icon in the system tray returns a message that "The display is not connected to an nvidia gpu".
The card is displayed in device manager with a yellow warning icon. In the properties it says there is a problem with the driver. I uninstalled and reinstalled with a fresh copy downloaded from nvidia. Same result. Swapped the GTX 580 for an older Gigabyte GTX 460, uninstalled and reinstalled the drivers. Same result. Swapped the memory with sticks that I know are OK. Swapped the power cables in the PSU.
There is power to the card.
Asus z77 Sabretooth Motherboard
Intel Core i5 3570K
16 GB Corsair Vengeance DDR3 1600
Asus GTX 580
Corsair AX 850 PSU
Intel 330 SSD
Win 7 Pro 64 bit.
More about :display connected nvidia gpu asus gtx 580
Forgot to mention your motherboard may be different and just have an option for PCI-E in bios
If you believe the on board graphics card is conflicting, go into the bios and check for a setting called primary video controller. and make sure the option is something like GFXO GPP IGFX PCI and not IGFX GFXO GPP PCI