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#11
Have you checked in Windows Update?
Motherboard has an integrated graphics card (so it's likely this is the other video controller in Device Manager)
Can you remove the nVidia card and uninstall it's drivers?
Then see if the problem remains while running the system with the on-board graphics?
In the event that the on-board graphics controller is broken, you may also try disabling it in the BIOS and see if that helps (put the nVidia card back in or you won't have any video at all after disabling the on-board graphics!)