My screen keeps going on power saving mode starting from booting. I tried to take out all cards, disconnect all cables cept for the monitor to graphic card cable. tried taking out the graphic card and connecting the monitor cable to onboard, nothing happens. I even changed my motherboard and its working 100%.. even took out the motherboard battery..still same thing..the monitor cable is working cause i tried connecting it to a laptop and it showed the screen..any idea whats wrong?? even bought new power supply..still nothing.. anyone got any other idea?