I have a nvidia Graphics card 750gx2 i keep recieving the following mess. the nvivia system sentinel is reporting that the nvidia powered graphics card is not receiving sufficient power.To protect your hardware from potential dammage or causing a potential system lock up the graphics processor has lowered its performance yo a level that allows safe continued operations.
just a word of warning!! i had an nvidia card that did that.. even though power was connected,turned out it was on its way out..ended up with infinate loops and then it just went!!..this might not be the case with yours though :)