Started about 3 weeks ago. My machine went totally unstable. Tested it to death and cant find anything very wrong with it. The only thing thats strange is that when it is under load, it generally wont blue screen or reset. But as soon as the room gets cold (like at night since its winter) my machine will blue screen. If i do anything that puts load on it after idling for a while it will also reset. Now i've heard of overheating hardware but this seems to be the opposite. Does anyone have any ideas why it may be doing this?