My grandmother has this as her tower. It was having problems and randomly shutting down on her and finally it reached the point as to where if you click the power button nothing happens. On the back of the tower there is a sold green light and on the inside there is a solid amber light on the motherboard. I'm pretty stuck as to what it could be. I've heard the TFX PSU on these is garbage, but I don't wanna drop $30 on it if it's not going to be the issue. Any ideas on what it could be, or things to try and check? Thanks for any help you guys may have.