Posted 9/29/2015 20:59 (#4815615 - in reply to #4815571) Subject: RE: Computer will not pwer up
"Power saving mode" just being the message displayed by the monitor when it's not receiving a signal?
I doubt that the ram wiggled loose after a (what I assume was, anyway) long period of use. Are you getting any POST beeps when you press the power button? I'd lean toward the power supply with the given information.