Problem started a few months ago. Shortly after starting a game, my computer would lock up.
Lock up in context is:
1) Monitor goes black. Reports "no signal." Cannot recover from this state.
2) Sometimes sound continues. Sometimes sound goes into a loop. Sometimes it'll continue THEN go into a loop.
First thing did was replace video card and power supply. Problem continued with additional noticed symptom:
3) Occasional odd artifacting (weird little static-like spots usually displaced to the right of the mouse cursor that would appear briefly) on desktop and Internet Explorer. Reproduceability uncertain. Included the "lock up" on desktop, not even in game.
It was recommended that I try a clean Windows install. Did so. Problem happened with a bare bones Window install and nothing else. Replaced every remaining part of the computer except hard drives, mouse, keyboard, monitor. Problem still occured, all 3 symptoms. Has happened twice with this new system, though once had a different error claiming an incompatible signal instead of no signal.
I'm testing out an old CRT to see if problem persists with a different monitor, but even if the problem doesn't show up, it still seems awkward that the monitor could cause it. Monitor runs at 1680x1050 native. Desktop runs native. Was running 1440x900 for games with old system. Don't exactly recall res I ran a game at when experiencing the problem on the new system. Old CRT monitor I'm testing with is running 1600x1200. And I'll update with how that goes when I get time to play some games to test it.
Any thoughts?