As Title states, pc ran good for a few years, about to turn 3. Seems like parts aren't getting enough power. I replaced the CMOS battery at one point and that seemed to help for a few days, then the problems came back. Would it be a psu issue? Graphics card had a blinking white light on it, but that seemed to go away after I updated drivers. The power supply was replaced a year ago with a corsair 650w I got from best buy. I recently turned off hibernate and sleep altogether, with no screen saver. It ran fine for the last week, I shut it down last night and then today it just started going into that off state where peripherals have no power and nothing on display, fans run and lights on but holding the power button won't shut the pc down. Only way to shut it down is to flip the psu switch which I don't want to continue to do. Any direction would be appreciated, Thank You.