I have seen plenty of stuff on the internet about this but want to get opinions on here. I turn my computer on with the monitor on but the screen remains black. the power indicator on my monitor is on but flashing like it is waiting for a signal. when i turn on my computer, the fans on the inside rev up as normal but then quickly die down to what seems like below-normal operating levels. a few weeks ago, my computer would occasionally freeze up with a distorted version of whatever was on the screen. is it a failing psu? failing gfx card? ram? thanks.