i've had a Nvidia 9600GT graphics card in my computer for 3+ years and never had an issue with it but when i booted up my pc today i got a "Nvidia Graphics card is not receiving sufficient power" warning. I've never got one of these before and i'm a little concerned. What would suddenly cause that?
powersupply going bad, motherboard going bad, gpu going bad. Could be any of those but I listed them in order from most probable to least. Some electronics age and get weak, like capacitors, and eventually need replacing.