I can't make out which you're talking about. There're options you can set in the Power applet of the Control Panel that you could look at. If you're talking about just the monitor, most have a button you can push to get into a menu of options.
So a few days ago I left my PC on to download games overnight, now I usually do this a lot when I'm downloading TV, movies and games. I woke up to find my second monitor on but my main monitor has gone into Power Saving mode. This has happened many times before and a simple restart always fixed it, instead this time when I restarted my computer both monitors went into power saving mode and there was nothing I could do.
I've got a GeForce GTX 570, i5 760, HX620w Modular power supply, GIGABYTE GA-P55A-UD3.
I've been on nearly every forum and tired everything they have said to fix this, I'm thinking my 570 has finally given up but I want to know for sure before I go and buy a new card. Any help please?