i have a old amd fm1 system using onboard video i let my girlfriend use the past few years. few days ago she tried to turn it on and all of a sudden no video. im completely stumped. the system is booting to windows because with speakers hooked up you can still hear the new device noise when swapping cables. ive tried everything from cables ram monitors discrete video cards and power supply swapping with another system. is it possible for a motherboard to just lose video regardless of output but still boot and function?